[singular] 01/02: Unapply all patches; use gbp and not git-dpm, that's the standard these days

Ximin Luo infinity0 at debian.org
Mon Mar 28 23:47:16 UTC 2016


This is an automated email from the git hooks/post-receive script.

infinity0 pushed a commit to branch master3
in repository singular.

commit 8debd8ca8f696dba35723ff85d1a1c1d2f491726
Author: Ximin Luo <infinity0 at debian.org>
Date:   Tue Mar 8 17:06:42 2016 +0100

    Unapply all patches; use gbp and not git-dpm, that's the standard these days
---
 IntegerProgramming/Makefile.in |   12 +-
 Makefile.in                    |   29 +-
 Singular/Makefile.in           |  146 +-
 Singular/Minor.cc              |    2 +-
 Singular/MinorInterface.cc     |    2 +-
 Singular/MinorProcessor.cc     |    2 +-
 Singular/attrib.cc             |    2 +-
 Singular/calcSVD.cc            |    2 +-
 Singular/claptmpl.cc           |   37 +-
 Singular/cntrlc.cc             |    2 +-
 Singular/configure             |    1 +
 Singular/configure.in          |    1 +
 Singular/eigenval_ip.cc        |    2 +-
 Singular/emacs.cc              |    2 +-
 Singular/extra.cc              |    2 +-
 Singular/feOpt.cc              |    2 +-
 Singular/fehelp.cc             |    2 +-
 Singular/fglm.cc               |    2 +-
 Singular/gms.cc                |    2 +-
 Singular/grammar.cc            |    2 +-
 Singular/grammar.y             |    2 +-
 Singular/interpolation.cc      |    2 +-
 Singular/iparith.cc            |    2 +-
 Singular/ipassign.cc           |    2 +-
 Singular/ipconv.cc             |    2 +-
 Singular/ipid.cc               |    2 +-
 Singular/iplib.cc              |    2 +-
 Singular/ipprint.cc            |    2 +-
 Singular/ipshell.cc            |    2 +-
 Singular/janet.cc              |    2 +-
 Singular/libparse.l            |    2 +-
 Singular/lists.cc              |    2 +-
 Singular/maps_ip.cc            |    2 +-
 Singular/minpoly.cc            |    2 +-
 Singular/misc_ip.cc            |    9 +-
 Singular/mmInit.cc             |    8 -
 Singular/mpsr_Error.cc         |    2 +-
 Singular/mpsr_Get.cc           |    2 +-
 Singular/mpsr_GetMisc.cc       |    2 +-
 Singular/mpsr_GetPoly.cc       |    2 +-
 Singular/mpsr_Put.cc           |    2 +-
 Singular/mpsr_PutPoly.cc       |    2 +-
 Singular/mpsr_Tok.cc           |    2 +-
 Singular/mpsr_sl.cc            |    2 +-
 Singular/ndbm.cc               |    2 +-
 Singular/pcv.cc                |    2 +-
 Singular/pipeLink.cc           |    2 +-
 Singular/pyobject.cc           |    2 +-
 Singular/scanner.cc            |    2 +-
 Singular/scanner.l             |    2 +-
 Singular/sdb.cc                |    2 +-
 Singular/silink.cc             |    2 +-
 Singular/sing_dbm.cc           |    2 +-
 Singular/sing_win.cc           |    2 +-
 Singular/slInit_Dynamic.cc     |    2 +-
 Singular/slInit_Static.cc      |    2 +-
 Singular/ssiLink.cc            |    2 +-
 Singular/subexpr.cc            |    2 +-
 Singular/tesths.cc             |    2 +-
 Singular/walk.cc               |    2 +-
 Singular/walk_ip.cc            |    2 +-
 Singular/wrapper.cc            |    2 +-
 doc/Makefile.in                |   55 +-
 doc/cones.doc                  |  110 +-
 doc/singular.doc               |    4 +-
 emacs/Makefile.in              |    5 +-
 factory/GNUmakefile.in         |   51 +-
 factory/assert.h               |    6 -
 factory/gen_cf_gmp.template    |    3 +
 install-sh                     |   12 +-
 kernel/F4.cc                   |    2 +-
 kernel/F5cData.cc              |    2 +-
 kernel/F5cLists.cc             |    2 +-
 kernel/GMPrat.cc               |    2 +-
 kernel/Makefile.in             |   42 +-
 kernel/Number.h                |    2 +-
 kernel/Poly.h                  |    2 +-
 kernel/PowerSeries.h           |    2 +-
 kernel/clapconv.cc             |    2 +-
 kernel/clapsing.cc             |    2 +-
 kernel/dError.c                |    2 +-
 kernel/digitech.cc             |    2 +-
 kernel/digitech.h              |    2 +-
 kernel/eigenval.cc             |    2 +-
 kernel/f5c.cc                  |    2 +-
 kernel/f5data.cc               |    2 +-
 kernel/f5gb.cc                 |    2 +-
 kernel/f5lists.cc              |    2 +-
 kernel/fast_maps.cc            |    2 +-
 kernel/fast_mult.cc            |    2 +-
 kernel/fast_mult.h             |    2 +-
 kernel/feResource.cc           |   16 +-
 kernel/febase.cc               |   43 +-
 kernel/fegetopt.c              |    2 +-
 kernel/feread.cc               |   29 +-
 kernel/fereadl.c               |    2 +-
 kernel/ffields.cc              |    2 +-
 kernel/fglmcomb.cc             |    2 +-
 kernel/fglmgauss.cc            |    2 +-
 kernel/fglmhom.cc              |    2 +-
 kernel/fglmvec.cc              |    2 +-
 kernel/fglmzero.cc             |    2 +-
 kernel/gfan.cc                 | 4512 ----------------------------------------
 kernel/gnumpc.cc               |    2 +-
 kernel/gnumpfl.cc              |    2 +-
 kernel/gr_kstd2.cc             |    2 +-
 kernel/gring.cc                |    2 +-
 kernel/hdegree.cc              |    2 +-
 kernel/hilb.cc                 |    2 +-
 kernel/hutil.cc                |    2 +-
 kernel/ideals.cc               |    2 +-
 kernel/int64vec.cc             |    2 +-
 kernel/intvec.cc               |    2 +-
 kernel/kbuckets.cc             |    2 +-
 kernel/khstd.cc                |    2 +-
 kernel/kspoly.cc               |    2 +-
 kernel/kstd1.cc                |    2 +-
 kernel/kstd2.cc                |    2 +-
 kernel/kstdfac.cc              |    2 +-
 kernel/kutil.cc                |    2 +-
 kernel/linearAlgebra.cc        |    2 +-
 kernel/longalg.cc              |    2 +-
 kernel/longrat.cc              |    2 +-
 kernel/longrat0.cc             |    2 +-
 kernel/longtrans.cc            |    2 +-
 kernel/lplist.cc               |    2 +-
 kernel/maps.cc                 |    2 +-
 kernel/matpol.cc               |    2 +-
 kernel/misc.cc                 |    2 +-
 kernel/mmalloc.cc              |    2 +-
 kernel/mmstd.c                 |    2 +-
 kernel/mod_raw.cc              |    2 +-
 kernel/modulop.cc              |    2 +-
 kernel/mpr_base.cc             |    2 +-
 kernel/mpr_complex.cc          |    2 +-
 kernel/mpr_inout.cc            |    2 +-
 kernel/mpr_numeric.cc          |    2 +-
 kernel/multicnt.cc             |    2 +-
 kernel/ncSACache.cc            |    2 +-
 kernel/ncSAFormula.cc          |    2 +-
 kernel/ncSAMult.cc             |    2 +-
 kernel/npolygon.cc             |    2 +-
 kernel/numbers.cc              |    2 +-
 kernel/pDebug.cc               |    2 +-
 kernel/pInline0.cc             |    2 +-
 kernel/pInline1.cc             |    2 +-
 kernel/pInline2.cc             |    2 +-
 kernel/pShallowCopyDelete.cc   |    2 +-
 kernel/p_Mult_q.cc             |    2 +-
 kernel/p_Mult_q.h              |    2 +-
 kernel/p_Procs_Dynamic.cc      |    2 +-
 kernel/p_Procs_Generate.cc     |    2 +-
 kernel/p_Procs_Lib.cc          |    2 +-
 kernel/p_Procs_Static.cc       |    2 +-
 kernel/p_polys.cc              |    2 +-
 kernel/page.c                  |    2 +-
 kernel/polys-impl.cc           |    2 +-
 kernel/polys.cc                |    2 +-
 kernel/polys0.cc               |    2 +-
 kernel/polys1.cc               |    2 +-
 kernel/prCopy.cc               |    2 +-
 kernel/ratgring.cc             |    2 +-
 kernel/ring.cc                 |    2 +-
 kernel/ringgb.cc               |    2 +-
 kernel/ringgb.h                |    2 +-
 kernel/rintegers.cc            |    2 +-
 kernel/rmodulo2m.cc            |    2 +-
 kernel/rmodulon.cc             |    2 +-
 kernel/sbuckets.cc             |    2 +-
 kernel/sca.cc                  |    2 +-
 kernel/semic.cc                |    2 +-
 kernel/shiftgb.cc              |    2 +-
 kernel/shortfl.cc              |    2 +-
 kernel/sparsmat.cc             |    2 +-
 kernel/spectrum.cc             |    2 +-
 kernel/splist.cc               |    2 +-
 kernel/summator.cc             |    2 +-
 kernel/syz.cc                  |    2 +-
 kernel/syz0.cc                 |    2 +-
 kernel/syz1.cc                 |    2 +-
 kernel/syz2.cc                 |    2 +-
 kernel/syz3.cc                 |    2 +-
 kernel/tgb.cc                  |    2 +-
 kernel/tgbgauss.cc             |    2 +-
 kernel/tgbgauss.h              |    2 +-
 kernel/timer.cc                |    2 +-
 kernel/tmult.cc                |    2 +-
 kernel/units.cc                |    2 +-
 kernel/walkMain.cc             |    2 +-
 kernel/walkProc.cc             |    2 +-
 kernel/walkSupport.cc          |    2 +-
 kernel/weight.cc               |    2 +-
 kernel/weight0.c               |    2 +-
 libfac/Makefile.in             |   14 +-
 mkinstalldirs                  |    4 +-
 omalloc/Makefile.in            |   28 +-
 196 files changed, 465 insertions(+), 5056 deletions(-)

diff --git a/IntegerProgramming/Makefile.in b/IntegerProgramming/Makefile.in
index 05fccfe..50de520 100644
--- a/IntegerProgramming/Makefile.in
+++ b/IntegerProgramming/Makefile.in
@@ -63,12 +63,12 @@ install-nolns: install
 install_all: install
 
 install install-libsingular: $(MAIN1) $(MAIN2) $(MAIN3) $(MAIN4) $(LLL)
-	${MKINSTALLDIRS} $(DESTDIR)${bindir}
-	${INSTALL_PROGRAM} $(MAIN1) $(DESTDIR)${bindir}
-	${INSTALL_PROGRAM} $(MAIN2) $(DESTDIR)${bindir}
-	${INSTALL_PROGRAM} $(MAIN3) $(DESTDIR)${bindir}
-	${INSTALL_PROGRAM} $(MAIN4) $(DESTDIR)${bindir}
-	${INSTALL_PROGRAM} $(LLL) $(DESTDIR)${bindir}
+	${MKINSTALLDIRS} ${bindir}
+	${INSTALL_PROGRAM} $(MAIN1) ${bindir}
+	${INSTALL_PROGRAM} $(MAIN2) ${bindir}
+	${INSTALL_PROGRAM} $(MAIN3) ${bindir}
+	${INSTALL_PROGRAM} $(MAIN4) ${bindir}
+	${INSTALL_PROGRAM} $(LLL) ${bindir}
 
 install-bindist: $(MAIN1) $(MAIN2) $(MAIN3) $(MAIN4)
 	${MKINSTALLDIRS} ${install_bindir}
diff --git a/Makefile.in b/Makefile.in
index bd1718d..0d6db8f 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -21,16 +21,11 @@ PERL		= @PERL@
 TMP_DIR		= @TMP_DIR@
 MYGZIP		= @MYGZIP@ -9
 GUNZIP		= @GUNZIP@
-CHMOD		= /bin/chmod
 
 ##############################################################
 # default target
-all:
-	@ for SUBDIR in ${BUILD1_SUBDIRS}; \
-	do \
-	  echo ${MAKE} all in $${SUBDIR}; \
-	  ${MAKE} -C $$SUBDIR || exit 1; \
-	done
+${SINGULAR}:
+	${MAKE} install
 
 ##############################################################
 # general targets
@@ -39,7 +34,7 @@ all:
 
 TEXINFO_TEX_FILES = epsf.tex texinfo.tex txi-cs.tex txi-de.tex txi-no.tex
 TEXINFO_TEX_DIR = Texinfo/doc
-original_all:
+all:
 	echo For everybody who did not read the README: use make install
 	exit 1
 
@@ -47,13 +42,15 @@ install install_all:
 	@ for SUBDIR in ${BUILD1_SUBDIRS}; \
 	do \
 	  echo ${MAKE} $@ in $${SUBDIR}; \
-	  ${MAKE} -C $$SUBDIR $@ || exit 1 ;\
+	  (cd $${SUBDIR} && ${MAKE} $@ ) || exit 1;\
 	  (if test "$${SUBDIR}" = Texinfo && test -d doc; then \
 		for FILE in ${TEXINFO_TEX_FILES}; \
 		do \
 		  if test "$@" = uninstall; then\
 		    echo rm -f doc/$${FILE};\
 	            rm -f doc/$${FILE}; \
+	          else \
+		    echo cp ${TEXINFO_TEX_DIR}/$${FILE} doc; \
 		    cp ${TEXINFO_TEX_DIR}/$${FILE} doc; \
 	          fi; \
 	        done;\
@@ -65,7 +62,7 @@ install-nolns:
 	@ for SUBDIR in ${BUILD1_SUBDIRS}; \
 	do \
 	  echo ${MAKE} $@ in $${SUBDIR}; \
-	  ${MAKE} -C $$SUBDIR $@ ;\
+	  (cd $${SUBDIR} && ${MAKE} $@ )  || exit 1;\
 	  (if test "$${SUBDIR}" = Texinfo && test -d doc; then \
 	    for FILE in ${TEXINFO_TEX_FILES}; \
 	    do \
@@ -257,7 +254,7 @@ dist: ${SHAREDIST_NAME}.tar.gz  ${BINDIST_NAME}.tar.gz
 sharedist ${SHAREDIST_NAME}.tar.gz:
 	if test -d ${SI_TMPDIR}; then rm -rf ${SI_TMPDIR}; fi
 	${MAKE} install-sharedist localdir=${SI_TMPDIR}
-	$(CHMOD) -R a+rX ${SI_TMPDIR}
+	chmod -R a+rX ${SI_TMPDIR}
 	cd ${SI_TMPDIR}; tar cf - Singular| ${MYGZIP} > ${SHAREDIST_NAME}.tar.gz
 	mv ${SI_TMPDIR}/${SHAREDIST_NAME}.tar.gz .
 	rm -rf ${SI_TMPDIR}
@@ -265,7 +262,7 @@ sharedist ${SHAREDIST_NAME}.tar.gz:
 bindist ${BINDIST_NAME}.tar.gz:
 	if test -d ${SI_TMPDIR}; then rm -fr ${SI_TMPDIR}; fi
 	${MAKE} install-bindist localdir=${SI_TMPDIR}
-	$(CHMOD) -R a+rX ${SI_TMPDIR}
+	chmod -R a+rX ${SI_TMPDIR}
 	cd ${SI_TMPDIR}; tar cf - Singular| ${MYGZIP} > ${BINDIST_NAME}.tar.gz
 	mv ${SI_TMPDIR}/${BINDIST_NAME}.tar.gz .
 	rm -rf ${SI_TMPDIR}
@@ -273,7 +270,7 @@ bindist ${BINDIST_NAME}.tar.gz:
 static-bindist ${BINDIST_NAME}-static.tar.gz:
 	if test -d ${SI_TMPDIR}; then rm -fr ${SI_TMPDIR}; fi
 	${MAKE} install-bindist localdir=${SI_TMPDIR} LD_STATIC=1
-	$(CHMOD) -R a+rX ${SI_TMPDIR}
+	chmod -R a+rX ${SI_TMPDIR}
 	-rm -f ${SI_TMPDIR}/Singular/*/*/*.so
 	-rm -f ${SI_TMPDIR}/Singular/*/*/modgen*
 	cd ${SI_TMPDIR}; tar cf - Singular| ${MYGZIP} > ${BINDIST_NAME}-static.tar.gz
@@ -650,7 +647,7 @@ _static-bindist: ${SINGULAR}
 	-strip ${SI_TMPDIR}/${BINDIR_NAME}/*
 	cat INSTALL.unix | sed -e "s/<x-y-z>/${S_VERSION}/g" > \
                       ${SI_TMPDIR}/Singular/INSTALL
-	cd ${SI_TMPDIR}; $(CHMOD) -R a+rX *;\
+	cd ${SI_TMPDIR}; chmod -R a+rX *;\
            tar cf - Singular | ${MYGZIP} > ${BINDIST_NAME}-static.tar.gz
 	mv ${SI_TMPDIR}/${BINDIST_NAME}-static.tar.gz .
 	rm -rf ${SI_TMPDIR}
@@ -681,7 +678,7 @@ windist: ${SINGULAR}
 	${INSTALL} ${CYGWIN_DLL} ${SI_TMPDIR}/${BINDIR_NAME}
 	cat INSTALL.win	| sed -e "s/<x-y-z>/${S_VERSION}/g" > \
                          ${SI_TMPDIR}/Singular/INSTALL
-	cd ${SI_TMPDIR}; $(CHMOD) -R a+rX *;\
+	cd ${SI_TMPDIR}; chmod -R a+rX *;\
            ${ZIP} -r sing Singular
 	mv ${SI_TMPDIR}/sing.zip Singular-${S_VERSION}-${SINGUNAME}.zip
 	rm -rf ${SI_TMPDIR}
@@ -694,7 +691,7 @@ srcdist:
 	touch  grammar.cc;\
 	touch  scanner.cc;\
 	cd ../..;\
-	$(CHMOD) -R a+rX .;\
+	chmod -R a+rX .;\
 	tar cf - Singular-${S_VERSION}| ${MYGZIP} > Singular-${S_VERSION}.tar.gz
 	mv ${SI_TMPDIR}/Singular-${S_VERSION}.tar.gz .
 	rm -rf ${SI_TMPDIR}
diff --git a/Singular/Makefile.in b/Singular/Makefile.in
index 52de247..0a2b7e2 100644
--- a/Singular/Makefile.in
+++ b/Singular/Makefile.in
@@ -67,7 +67,6 @@ CC		= @CC@
 LD              = @LD@
 CXX		= @CXX@
 LEX		= sh flexer.sh
-SED		= /bin/sed
 
 PERL		= @PERL@
 BISON		= bison
@@ -94,7 +93,7 @@ endif
 DEFS		= -DNDEBUG -DOM_NDEBUG -D at SING_UNAME@ @DEFS@
 LDFLAGS2	= @LDFLAGS@
 ifneq ($(SINGUNAME),ix86-Win)
-LDFLAGS		= -L at prefix@/kernel -L../kernel -L../omalloc -L../libfac -L../factory -lkernel @LDFLAGS@
+LDFLAGS		= -L at prefix@/kernel -L../kernel -lkernel @LDFLAGS@ 
 LDFLAGSG	= -L at prefix@/kernel -L../kernel -lkernel_g @LD_DYN_FLAGS1@ @LDFLAGS@ 
 LDFLAGSP	= -L at prefix@/kernel -L../kernel -lkernel_p @LD_DYN_FLAGS1@ @LDFLAGS@ 
 else
@@ -138,7 +137,7 @@ HAVE_MPSR       = @HAVE_MPSR@
 #
 # Handle libSINGULAR stuff
 #
-LIBSINGULAR_LIBS =-lsingfac -lsingcf -lntl -lgmp -lomalloc -ldl
+LIBSINGULAR_LIBS =-lsingfac -lsingcf -lntl -lreadline -lgmp -lomalloc
 
 SO_SUFFIX = so
 
@@ -217,7 +216,7 @@ endif
 CXXSOURCES=grammar.cc scanner.cc attrib.cc \
     blackbox.cc eigenval_ip.cc\
     extra.cc fehelp.cc feOpt.cc \
-    ipassign.cc ipconv.cc ipid.cc \
+    ipassign.cc ipconv.cc ipid.cc iplib.cc \
     ipprint.cc ipshell.cc \
     newstruct.cc lists.cc \
     sdb.cc \
@@ -364,13 +363,9 @@ GFTABLES = $(wildcard LIB/gftables/[1-9]*)
 	fi
 
 .cc.o:	
-	${CXX} -fPIC ${CXXFLAGS} ${CXXTEMPLFLAGS} ${CPPFLAGS} ${DEFS} -c $<
-
-iplib_lib.o: iplib.cc
-	${CXX} ${CXXFLAGS} ${CXXTEMPLFLAGS} -DLIBSINGULAR ${CPPFLAGS} ${DEFS} -c $< -o $@
-
+	${CXX} ${CXXFLAGS} ${CXXTEMPLFLAGS} ${CPPFLAGS} ${DEFS} -c $<
 .c.o:
-	${CC} -fPIC ${CFLAGS} ${CPPFLAGS} ${DEFS} -c $<
+	${CC} ${CFLAGS} ${CPPFLAGS} ${DEFS} -c $<
 
 %.dl_o : %.cc
 	${CXX} ${CXXFLAGS} ${CXXTEMPLFLAGS} ${CPPFLAGS} ${DEFS} ${SFLAGS} -c $< -o $@
@@ -385,22 +380,18 @@ Singular-static: version.h
 	${MAKE} LD_STATIC=1 S_EXT="-static" Singular-static
 	echo "#undef HAVE_STATIC" > static.h
 
-SINGULAR_DYNAMIC = libsingular.$(SO_SUFFIX) ../kernel/feread.o ../kernel/fereadl.o
-
 Singular${S_EXT}: mod2.h Makefile version.h $(WIN_LIBS) scanner.cc  ${OBJS} \
-          iparith.o tesths.cc libparse.cc claptmpl.o mpsr_Tok.o $(DL_LIBS) $(SINGULAR_DYNAMIC)
+          iparith.o tesths.cc libparse.cc claptmpl.o mpsr_Tok.o $(DL_LIBS) 
 	${CXX} ${CXXFLAGS} ${CPPFLAGS} ${CXXTEMPLFLAGS} ${DEFS} \
 	  -o Singular${S_EXT} \
 	  tesths.cc iparith.o mpsr_Tok.o claptmpl.o\
-	  ${OBJS} $(SINGULAR_DYNAMIC) ${LDFLAGS} ${LIBS} ../kernel/mmalloc.o
+	  ${OBJS} ${LDFLAGS} ${LIBS} ../kernel/mmalloc.o 
 
-libsingular: libsingular.${SO_SUFFIX}
-
-libsingular.${SO_SUFFIX}: version.h $(WIN_LIBS) scanner.cc  ${OBJS} \
-         iparith.o libparse.cc claptmpl.o mpsr_Tok.o $(DL_LIBS) mmInit.o iplib_lib.o
+libsingular: mod2.h Makefile version.h $(WIN_LIBS) scanner.cc  ${OBJS} \
+         iparith.o libparse.cc claptmpl.o mpsr_Tok.o $(DL_LIBS) 
 	$(LIBSINGULAR_LD) ${SLDFLAGS} ${LIBSINGULAR_FLAGS} -o libsingular.${SO_SUFFIX} \
-	iparith.o mpsr_Tok.o claptmpl.o mmInit.o iplib_lib.o \
-	    ${OBJS} -lkernel -L../kernel -L../factory -L../libfac -L../omalloc -L${libdir} ${LIBSINGULAR_LIBS}
+	iparith.o mpsr_Tok.o claptmpl.o \
+	${OBJS} -lkernel -L../kernel -L../factory -L../libfac -L${libdir} ${LIBSINGULAR_LIBS}
 
 libsingular.a: mod2.h Makefile version.h $(WIN_LIBS) scanner.cc  ${OBJS} \
          iparith.o libparse.cc claptmpl.o mpsr_Tok.o
@@ -436,16 +427,13 @@ iparith.inc: gentable.cc grammar.h tok.h table.h mod2.h
 	 ${CXX} ${CXXFLAGS} ${CPPFLAGS} ${CXXTEMPLFLAGS} ${DEFS} gentable.cc \
 	     -o gentable1
 	./gentable1
-	# /bin/rm -f gentable1 gentable1.exe
+	/bin/rm -f gentable1 gentable1.exe
 
 mpsr_Tok.inc: gentable2.cc grammar.h tok.h table.h mod2.h
 	${CXX} ${CXXFLAGS} ${CPPFLAGS} ${CXXTEMPLFLAGS} ${DEFS} gentable2.cc \
 	     -o gentable2
 	./gentable2
-	# /bin/rm -f gentable2 gentable2.exe
-	#
-	# FIXME: the above doesnt work.
-	touch $@
+	/bin/rm -f gentable2 gentable2.exe
 
 
 version.h: ${SOURCES} ${HEADERS} Makefile.in mod2.h.in \
@@ -485,17 +473,17 @@ TSingular: mod2.h feOpt.cc version.h emacs.cc \
 feOpt.o: feOpt.inc feOptES.inc feOptTS.inc
 extra.o: feOpt.inc
 
-feOpt.inc: feOpt.cc |mod2.h
+feOpt.inc: feOpt.cc mod2.h
 	$(CXX) $(CXXFLAGS) -DGENERATE_OPTION_INDEX ${CPPFLAGS} feOpt.cc -o feOpt
 	./feOpt
 	/bin/rm -f feOpt feOpt.exe
 
-feOptES.inc: feOpt.cc |mod2.h
+feOptES.inc: feOpt.cc mod2.h
 	$(CXX) $(CXXFLAGS) -DGENERATE_OPTION_INDEX  -DESINGULAR -I../kernel feOpt.cc -o feOptES
 	./feOptES
 	rm -f feOptES feOptES.exe
 
-feOptTS.inc: feOpt.cc |mod2.h
+feOptTS.inc: feOpt.cc mod2.h
 	$(CXX) $(CXXFLAGS) -DGENERATE_OPTION_INDEX  -DTSINGULAR -I../kernel feOpt.cc -o feOptTS
 	./feOptTS
 	rm -f feOptTS feOptTS.exe
@@ -510,7 +498,7 @@ dbmsr.so: $(DBMSR_SOURCES:.cc=.dl_o)
 MOD/pyobject.${MODULE_SUFFIX}: pyobject.dl_o
 	@echo "build dynamic module pyobject..."
 	$(MKINSTALLDIRS) $(srcdir)/MOD 
-	$(CXX) $^ ${PYTHON_MODULE_LDFLAGS} $(LDFLAGS) ${SLDFLAGS} ${PYTHON_MODULE_LIBS} ${LD_LIBC} -o $@
+	$(CXX) $^ ${PYTHON_MODULE_LDFLAGS} ${SLDFLAGS} ${PYTHON_MODULE_LIBS} ${LD_LIBC} -o $@
 
 src: scanner.cc grammar.h grammar.cc libparse.cc
 
@@ -567,27 +555,27 @@ endif
 ##
 ## install targets
 ##
-install: all installbin installslib install-libsingular
+install: all installbin installslib
 
 install_all: install
 
-install-ln: all installbin installslib-ln
+install-nolns: all installbin-nolns installslib-nolns
 
 installbin: ${SING_EXEC} libparse ESingular TSingular ${RUN_SINGULARS}
-	${MKINSTALLDIRS} $(DESTDIR)${bindir} $(DESTDIR)${bindir_mod}
-	${INSTALL_PROGRAM} ${SING_EXEC} $(DESTDIR)${SINGULAR}
+	${MKINSTALLDIRS} ${bindir} ${bindir_mod}
+	${INSTALL_PROGRAM} ${SING_EXEC} ${SINGULAR}
 	-for file in *.so; do \
-	  ${INSTALL_PROGRAM} $$file $(DESTDIR)${bindir}; \
+	  ${INSTALL_PROGRAM} $$file ${bindir}; \
 	done
 	-for file in MOD/*.so; do \
-	  ${INSTALL_PROGRAM} $$file $(DESTDIR)${bindir}/MOD; \
+	  ${INSTALL_PROGRAM} $$file ${bindir}/MOD; \
 	done
-	${INSTALL_PROGRAM} libparse ${RUN_SINGULARS} $(DESTDIR)${bindir}
-	${INSTALL_PROGRAM} ESingular TSingular $(DESTDIR)${bindir}
-	${INSTALL_PROGRAM} surfex $(DESTDIR)${bindir}
-	chmod a+x $(DESTDIR)${SINGULAR}
-	rm -f $(DESTDIR)${bindir}/${SING_EXEC}${EXEC_EXT}
-	cd $(DESTDIR)${bindir}; ${LN_S} ${SINGULAR} Singular${EXEC_EXT};
+	${INSTALL_PROGRAM} libparse ${RUN_SINGULARS} ${bindir}
+	${INSTALL_PROGRAM} ESingular TSingular ${bindir}
+	${INSTALL_PROGRAM} surfex ${bindir}
+	chmod a+x ${SINGULAR}
+	rm -f ${bindir}/${SING_EXEC}${EXEC_EXT}
+	cd ${bindir}; ${LN_S} ${SINGULAR} Singular${EXEC_EXT};
 
 installbin-nolns: ${SING_EXEC} libparse ESingular TSingular ${RUN_SINGULARS}
 	${MKINSTALLDIRS} ${bindir} ${bindir_mod}
@@ -596,35 +584,35 @@ installbin-nolns: ${SING_EXEC} libparse ESingular TSingular ${RUN_SINGULARS}
 	  ${INSTALL_PROGRAM} $$file ${bindir}; \
 	done
 	-for file in MOD/*.so; do \
-	  ${INSTALL_PROGRAM} $$file $(DESTDIR)${bindir}/MOD; \
+	  ${INSTALL_PROGRAM} $$file ${bindir}/MOD; \
 	done
-	${INSTALL_PROGRAM} libparse ${RUN_SINGULARS} $(DESTDIR)${bindir}
-	${INSTALL_PROGRAM} ESingular TSingular ${DL_LIBS} $(DESTDIR)${bindir}
-	chmod a+x $(DESTDIR)${SINGULAR}
-	rm -f $(DESTDIR)${bindir}/${SING_EXEC}${EXEC_EXT}
-	${INSTALL_PROGRAM} ${SINGULAR} $(DESTDIR)${bindir}/Singular${EXEC_EXT};
+	${INSTALL_PROGRAM} libparse ${RUN_SINGULARS} ${bindir}
+	${INSTALL_PROGRAM} ESingular TSingular ${DL_LIBS} ${bindir}
+	chmod a+x ${SINGULAR}
+	rm -f ${bindir}/${SING_EXEC}${EXEC_EXT}
+	${INSTALL_PROGRAM} ${SINGULAR} ${bindir}/Singular${EXEC_EXT};
 
-installslib-ln: LIB
+installslib: LIB
 	test -r ${slibdir} || ${LN_S} `pwd`/LIB ${slibdir}
 
-installslib: LIB
-	${MKINSTALLDIRS} $(DESTDIR)${slibdir}
+installslib-nolns: LIB
+	${MKINSTALLDIRS} ${slibdir}
 	for file in `pwd`/LIB/*.lib; do \
-	  ${INSTALL_DATA}  $$file $(DESTDIR)${slibdir}; \
+	  ${INSTALL_DATA}  $$file ${slibdir}; \
 	done
-	${MKINSTALLDIRS} $(DESTDIR)${slibdir}/gftables
+	${MKINSTALLDIRS} ${slibdir}/gftables
 	for file in `pwd`/LIB/gftables/*; do \
-	  ${INSTALL_DATA}  $$file $(DESTDIR)${slibdir}; \
+	  ${INSTALL_DATA}  $$file ${slibdir}/gftables/; \
 	done
 
-install-libsingular: libsingular
-	${MKINSTALLDIRS} $(DESTDIR)${includedir}/singular
+install-libsingular: libsingular installslib-nolns
+	${MKINSTALLDIRS} ${includedir}/singular
 	for file in *.$(SO_SUFFIX); do \
-	  ${INSTALL_PROGRAM}  $$file $(DESTDIR)${libdir}; \
+	  ${INSTALL_PROGRAM}  $$file ${libdir}; \
 	done
-	${INSTALL_PROGRAM} libsingular.h $(DESTDIR)${includedir}
-	for file in subexpr.h tok.h grammar.h ipid.h lists.h ipshell.h attrib.h silink.h table.h sing_dbm.h; do \
-	$(SED) -e "s:<kernel/:<singular/:" < $$file |$(SED) -e "s:<Singular/:<singular/:"|$(SED) -e "s:<omalloc/:<:"|$(SED) -e "s:<factory/:<:" >$(DESTDIR)${includedir}/singular/$$file ;\
+	${INSTALL_PROGRAM} libsingular.h ${includedir}
+	for file in subexpr.h tok.h grammar.h ipid.h lists.h ipshell.h attrib.h silink.h table.h; do \
+	sed -e "s:<kernel/:<singular/:" < $$file |sed -e "s:<Singular/:<singular/:"|sed -e "s:<omalloc/:<:"|sed -e "s:<factory/:<:" >${includedir}/singular/$$file ;\
 	done
 
 uninstall: uninstallbin
@@ -642,12 +630,11 @@ mostlyclean:
 	-rm -f Singular Singular-static Singularg Singularp libparse feOpt*.inc
 	-rm -f *.o *.og core *.op *.so* *.dl_o*
 	-rm -rf MOD
-	-rm -f ESingular* TSingular* libsingular
+	-rm -f ESingular* TSingular*
 
 clean: mostlyclean
 	-rm -f *.bak *.d *.dd depend 
 	-rm -f ${slibdir}
-	-rm -f gentable1 gentable2
 
 distclean: clean
 	-rm -f iparith.inc mpsr_Tok.inc stamp.h 
@@ -677,23 +664,24 @@ LIB/all.lib:	LIB/all.lib.tmpl
 
 install-bindist: $(HEADERS) $(SOURCES) Makefile depend
 	echo "#define MAKE_DISTRIBUTION	" > distrib.h
-	# sleep 1
-	${MAKE} ${SING_EXEC} ESingular TSingular libparse $(DESTDIR)${RUN_SINGULARS}
-	${MKINSTALLDIRS} $(DESTDIR)${install_bindir} $(DESTDIR)${install_bindir_mod}
-	${INSTALL_PROGRAM} ${SING_EXEC} $(DESTDIR)${install_bindir}/Singular
-	-${INSTALL_PROGRAM} *.so $(DESTDIR)${install_bindir}
-	${INSTALL_PROGRAM} -s  libparse ${RUN_SINGULARS} ESingular TSingular $(DESTDIR)${install_bindir}
-	${INSTALL_PROGRAM} surfex $(DESTDIR)${install_bindir}
+	sleep 1
+	${MAKE} ${SING_EXEC} ESingular TSingular libparse ${RUN_SINGULARS}
+	${MKINSTALLDIRS} ${install_bindir} ${install_bindir_mod}
+	${INSTALL_PROGRAM} ${SING_EXEC} ${install_bindir}/Singular
+	-${INSTALL_PROGRAM} *.so ${install_bindir}
+	-${INSTALL_PROGRAM} MOD/*.so ${install_bindir}/MOD
+	${INSTALL_PROGRAM} -s  libparse ${RUN_SINGULARS} ESingular TSingular ${install_bindir}
+	${INSTALL_PROGRAM} surfex ${install_bindir}
 	echo "#undef MAKE_DISTRIBUTION " > distrib.h
 
 install-sharedist: ${SLIBS_FILES} LIB/gftables
-	${MKINSTALLDIRS} $(DESTDIR)${install_slibdir}
-	cp ${SLIBS_FILES} $(DESTDIR)${install_slibdir}
-	${MKINSTALLDIRS} $(DESTDIR)${install_slibdir}/gftables
-	cp ${GFTABLES} $(DESTDIR)${install_slibdir}/gftables
-	${MKINSTALLDIRS} $(DESTDIR)${install_slibdir}/surfex
-	cp LIB/surfex/surfex.jar $(DESTDIR)${install_slibdir}/surfex
-	chmod -R +rX $(DESTDIR)${install_slibdir}/*
+	${MKINSTALLDIRS} ${install_slibdir}
+	cp ${SLIBS_FILES} ${install_slibdir}
+	${MKINSTALLDIRS} ${install_slibdir}/gftables
+	cp ${GFTABLES} ${install_slibdir}/gftables
+	${MKINSTALLDIRS} ${install_slibdir}/surfex
+	cp LIB/surfex/surfex.jar ${install_slibdir}/surfex
+	chmod -R +rX ${install_slibdir}/*
 
 tar:
 	tar cf Singular-${SINGULAR_VERSION}-src.tar ${DISTFILES}
@@ -791,8 +779,8 @@ mpsr_Tok.og: iparith.inc mpsr_Tok.cc
 	$(CXXG) ${CXXFLAGSG} ${CPPFLAGS} ${CXXTEMPLFLAGSG} ${DEFSG} -c mpsr_Tok.cc -o mpsr_Tok.og
 
 installg: Singularg
-	${MKINSTALLDIRS} $(DESTDIR)${bindir}
-	${INSTALL_PROGRAM} Singularg $(DESTDIR)${bindir}
+	${MKINSTALLDIRS} ${bindir}
+	${INSTALL_PROGRAM} Singularg ${bindir}	
 
 ESingularg: mod2.h feOpt.cc version.h emacs.cc \
            feOptES.inc
@@ -871,8 +859,8 @@ mpsr_Tok.op: iparith.inc mpsr_Tok.cc
 	$(CXXP) ${CXXFLAGSP} ${CPPFLAGS} ${CXXTEMPLFLAGSP} ${DEFSP} -c mpsr_Tok.cc -o mpsr_Tok.op
 
 installp: Singularp
-	${MKINSTALLDIRS} $(DESTDIR)${bindir}
-	${INSTALL_PROGRAM} Singularp $(DESTDIR)${bindir}
+	${MKINSTALLDIRS} ${bindir}
+	${INSTALL_PROGRAM} Singularp ${bindir}	
 
 ##
 ## dependencies
diff --git a/Singular/Minor.cc b/Singular/Minor.cc
index 4e358c5..402d7e6 100644
--- a/Singular/Minor.cc
+++ b/Singular/Minor.cc
@@ -1,4 +1,4 @@
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 #include <kernel/structs.h>
 #include <kernel/polys.h>
 #include <Minor.h>
diff --git a/Singular/MinorInterface.cc b/Singular/MinorInterface.cc
index 508f979..c79f694 100644
--- a/Singular/MinorInterface.cc
+++ b/Singular/MinorInterface.cc
@@ -1,4 +1,4 @@
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 #include <kernel/structs.h>
 #include <kernel/polys.h>
 #include <kernel/ideals.h>
diff --git a/Singular/MinorProcessor.cc b/Singular/MinorProcessor.cc
index 6ff81aa..1c08156 100644
--- a/Singular/MinorProcessor.cc
+++ b/Singular/MinorProcessor.cc
@@ -1,4 +1,4 @@
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 #include <kernel/structs.h>
 #include <kernel/polys.h>
 #include <MinorProcessor.h>
diff --git a/Singular/attrib.cc b/Singular/attrib.cc
index bbef31e..1f016ef 100644
--- a/Singular/attrib.cc
+++ b/Singular/attrib.cc
@@ -12,7 +12,7 @@
 #include <ctype.h>
 #include <unistd.h>
 
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 #include <omalloc/omalloc.h>
 #include <kernel/options.h>
 #include <Singular/tok.h>
diff --git a/Singular/calcSVD.cc b/Singular/calcSVD.cc
index 1e889dd..bf80b3c 100644
--- a/Singular/calcSVD.cc
+++ b/Singular/calcSVD.cc
@@ -1,5 +1,5 @@
 #include <stdio.h>
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 
 #ifdef HAVE_SVD
 
diff --git a/Singular/claptmpl.cc b/Singular/claptmpl.cc
index ec34e00..0fa6109 100644
--- a/Singular/claptmpl.cc
+++ b/Singular/claptmpl.cc
@@ -6,7 +6,7 @@
 * ABSTRACT - instantiation of all templates
 */
 
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 //#include <vector>
 //using namespace std;
 #ifdef HAVE_FACTORY
@@ -123,38 +123,3 @@ template class std::list<PolyMinorValue>;
 template class Cache<MinorKey, IntMinorValue>;
 template class Cache<MinorKey, PolyMinorValue>;
 
-#ifdef HAVE_NTL
-#include<NTL/version.h>
-#if NTL_MAJOR_VERSION == 6
-
-#include<NTL/tools.h>
-#include<NTL/lzz_pE.h>
-#include<NTL/lzz_pEX.h>
-#include<NTL/lzz_pX.h>
-#include<NTL/lzz_p.h>
-#include<NTL/vector.h>
-#include<NTL/pair.h>
-#include<NTL/GF2X.h>
-#include<NTL/GF2EX.h>
-#include<NTL/ZZ.h>
-#include<NTL/ZZX.h>
-#include<NTL/ZZ_pX.h>
-#ifdef NTL_CLIENT               // in <NTL/tools.h>: using of name space NTL
-NTL_CLIENT
-#endif
-template class Vec<zz_p>;
-template class Vec<zz_pE>;
-template class Mat<zz_p>;
-template class Mat<zz_pE>;
-template class Mat<ZZ>;
-template class Vec<Pair<zz_pX, long> >;
-template class Vec<Pair<zz_pEX, long> >;
-template class Vec<Pair<GF2EX, long> >;
-template class Vec<Pair<ZZX, long> >;
-template class Vec<Pair<ZZ_pX, long> >;
-template class Vec<Pair<GF2X, long> >;
-template void swap<zz_pE>(Vec<zz_pE>&, Vec<zz_pE>&);
-template long operator==<zz_p>(Vec<zz_p> const&, Vec<zz_p> const&);
-#endif
-
-#endif
diff --git a/Singular/cntrlc.cc b/Singular/cntrlc.cc
index 4a37ef5..80552b5 100644
--- a/Singular/cntrlc.cc
+++ b/Singular/cntrlc.cc
@@ -16,7 +16,7 @@
 #include <signal.h>
 #include <sys/types.h>
 #include <sys/wait.h>
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 #include <omalloc/omalloc.h>
 #include <Singular/tok.h>
 #include <Singular/ipshell.h>
diff --git a/Singular/configure b/Singular/configure
index 7663e6c..d72b6bd 100755
--- a/Singular/configure
+++ b/Singular/configure
@@ -10442,3 +10442,4 @@ if test -n "$ac_unrecognized_opts" && test "$enable_option_checking" != no; then
   { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: unrecognized options: $ac_unrecognized_opts" >&5
 $as_echo "$as_me: WARNING: unrecognized options: $ac_unrecognized_opts" >&2;}
 fi
+
diff --git a/Singular/configure.in b/Singular/configure.in
index 418a334..9c62c22 100644
--- a/Singular/configure.in
+++ b/Singular/configure.in
@@ -1518,4 +1518,5 @@ if test "$ac_cv_singuname" = "ix86-Win"; then
 fi
 
 AC_OUTPUT(${OUTPUT_MAKEFILES}, \
+ cp mod2.h ../kernel/mod2.h; \
  if test "$CONFIG_HEADERS"; then echo timestamp > stamp-h; fi)
diff --git a/Singular/eigenval_ip.cc b/Singular/eigenval_ip.cc
index b9f6030..5f53709 100644
--- a/Singular/eigenval_ip.cc
+++ b/Singular/eigenval_ip.cc
@@ -5,7 +5,7 @@
 * ABSTRACT: eigenvalues of constant square matrices
 */
 
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 
 #ifdef HAVE_EIGENVAL
 
diff --git a/Singular/emacs.cc b/Singular/emacs.cc
index 7ef7227..4c800d0 100644
--- a/Singular/emacs.cc
+++ b/Singular/emacs.cc
@@ -17,7 +17,7 @@
 #ifdef ix86_Win
 #include <windows.h>
 #endif
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 #include <Singular/version.h>
 #include <omalloc/omalloc.h>
 
diff --git a/Singular/extra.cc b/Singular/extra.cc
index 139b9d2..45ea3ba 100644
--- a/Singular/extra.cc
+++ b/Singular/extra.cc
@@ -12,7 +12,7 @@
 #include <string.h>
 #include <ctype.h>
 #include <signal.h>
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 #include <misc_ip.h>
 #include <blackbox.h>
 #include <newstruct.h>
diff --git a/Singular/feOpt.cc b/Singular/feOpt.cc
index 166eb2a..81fca1c 100644
--- a/Singular/feOpt.cc
+++ b/Singular/feOpt.cc
@@ -7,7 +7,7 @@
 
 #include <string.h>
 #include <stdlib.h>
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 #include <Singular/feOpt.h>
 #if !defined(GENERATE_OPTION_INDEX) && !defined(ESINGULAR) && !defined(TSINGULAR)
 #include <kernel/options.h>
diff --git a/Singular/fehelp.cc b/Singular/fehelp.cc
index 5d4a51c..ef96b44 100644
--- a/Singular/fehelp.cc
+++ b/Singular/fehelp.cc
@@ -12,7 +12,7 @@
 #include <stdlib.h>
 #include <time.h>
 
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 #include <omalloc/mylimits.h>
 #include <Singular/tok.h>
 #include <omalloc/omalloc.h>
diff --git a/Singular/fglm.cc b/Singular/fglm.cc
index f4a3de3..a4c397c 100644
--- a/Singular/fglm.cc
+++ b/Singular/fglm.cc
@@ -15,7 +15,7 @@
 *   lying in a 0-dimensional ideal.
 */
 
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 
 #ifdef HAVE_FACTORY
 #include <Singular/tok.h>
diff --git a/Singular/gms.cc b/Singular/gms.cc
index dc9060e..e204043 100644
--- a/Singular/gms.cc
+++ b/Singular/gms.cc
@@ -5,7 +5,7 @@
 * ABSTRACT: Gauss-Manin system normal form
 */
 
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 
 #ifdef HAVE_GMS
 
diff --git a/Singular/grammar.cc b/Singular/grammar.cc
index e81c78f..d3327ab 100644
--- a/Singular/grammar.cc
+++ b/Singular/grammar.cc
@@ -76,7 +76,7 @@
 #include <stdarg.h>
 #include <string.h>
 
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 #include <omalloc/mylimits.h>
 #include <omalloc/omalloc.h>
 #include <Singular/tok.h>
diff --git a/Singular/grammar.y b/Singular/grammar.y
index fcb71e2..39e2150 100644
--- a/Singular/grammar.y
+++ b/Singular/grammar.y
@@ -12,7 +12,7 @@
 #include <stdarg.h>
 #include <string.h>
 
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 #include <omalloc/mylimits.h>
 #include <omalloc/omalloc.h>
 #include <Singular/tok.h>
diff --git a/Singular/interpolation.cc b/Singular/interpolation.cc
index 1bf10a8..4d87ddf 100644
--- a/Singular/interpolation.cc
+++ b/Singular/interpolation.cc
@@ -2,7 +2,7 @@
 *  Computer Algebra System SINGULAR     *
 ****************************************/
 
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 #include <kernel/options.h>
 #include <kernel/febase.h>
 #include <kernel/ideals.h>
diff --git a/Singular/iparith.cc b/Singular/iparith.cc
index 52e2e75..33a8c3d 100644
--- a/Singular/iparith.cc
+++ b/Singular/iparith.cc
@@ -12,7 +12,7 @@
 #include <time.h>
 #include <unistd.h>
 
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 #include <Singular/tok.h>
 #include <kernel/options.h>
 #include <Singular/ipid.h>
diff --git a/Singular/ipassign.cc b/Singular/ipassign.cc
index 01b6ef0..e6947e4 100644
--- a/Singular/ipassign.cc
+++ b/Singular/ipassign.cc
@@ -11,7 +11,7 @@
 #include <string.h>
 #include <ctype.h>
 
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 #include <Singular/tok.h>
 #include <kernel/options.h>
 #include <Singular/ipid.h>
diff --git a/Singular/ipconv.cc b/Singular/ipconv.cc
index 431141d..a9a7696 100644
--- a/Singular/ipconv.cc
+++ b/Singular/ipconv.cc
@@ -5,7 +5,7 @@
 * ABSTRACT: automatic type conversions
 */
 
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 #include <Singular/tok.h>
 #include <Singular/ipid.h>
 #include <kernel/bigintmat.h>
diff --git a/Singular/ipid.cc b/Singular/ipid.cc
index 36c8d7f..872f6b6 100644
--- a/Singular/ipid.cc
+++ b/Singular/ipid.cc
@@ -7,7 +7,7 @@
 
 #include <string.h>
 
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 #include <Singular/static.h>
 #include <omalloc/omalloc.h>
 #include <Singular/tok.h>
diff --git a/Singular/iplib.cc b/Singular/iplib.cc
index 3142247..a81bc6d 100644
--- a/Singular/iplib.cc
+++ b/Singular/iplib.cc
@@ -11,7 +11,7 @@
 #include <ctype.h>
 #include <sys/stat.h>
 
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 #include <Singular/static.h>
 #include <Singular/tok.h>
 #include <kernel/options.h>
diff --git a/Singular/ipprint.cc b/Singular/ipprint.cc
index d8f3916..ede2210 100644
--- a/Singular/ipprint.cc
+++ b/Singular/ipprint.cc
@@ -5,7 +5,7 @@
 * ABSTRACT: interpreter: printing
 */
 
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 #include <Singular/tok.h>
 #include <Singular/ipid.h>
 #include <omalloc/omalloc.h>
diff --git a/Singular/ipshell.cc b/Singular/ipshell.cc
index 32934e7..a32c523 100644
--- a/Singular/ipshell.cc
+++ b/Singular/ipshell.cc
@@ -11,7 +11,7 @@
 #include <ctype.h>
 #include <math.h>
 
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 #include <Singular/tok.h>
 #include <kernel/options.h>
 #include <Singular/ipid.h>
diff --git a/Singular/janet.cc b/Singular/janet.cc
index f5f7806..5633599 100755
--- a/Singular/janet.cc
+++ b/Singular/janet.cc
@@ -3,7 +3,7 @@
 #include <string.h>
 #include <time.h>
 
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 #include <omalloc/omalloc.h>
 #include <kernel/polys.h>
 #include <kernel/numbers.h>
diff --git a/Singular/libparse.l b/Singular/libparse.l
index cfea410..87d7b4b 100644
--- a/Singular/libparse.l
+++ b/Singular/libparse.l
@@ -6,7 +6,7 @@
 #include <string.h>
 #include <stdlib.h>
 #include <ctype.h>
-#include "mod2.h"
+#include <kernel/mod2.h>
 #ifdef STANDALONE_PARSER
   #include <Singular/utils.h>
   #define HAVE_LIBPARSER
diff --git a/Singular/lists.cc b/Singular/lists.cc
index c4875fc..1d851ed 100644
--- a/Singular/lists.cc
+++ b/Singular/lists.cc
@@ -7,7 +7,7 @@
 // to produce a non-inline version from lists.h
 #define LISTS_CC
 
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 #include <Singular/tok.h>
 #include <kernel/febase.h>
 //#include "ipid.h"
diff --git a/Singular/maps_ip.cc b/Singular/maps_ip.cc
index 65ef0f4..4756a1b 100644
--- a/Singular/maps_ip.cc
+++ b/Singular/maps_ip.cc
@@ -5,7 +5,7 @@
 * ABSTRACT - the mapping of polynomials to other rings
 */
 
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 #include <Singular/tok.h>
 #include <kernel/febase.h>
 #include <kernel/polys.h>
diff --git a/Singular/minpoly.cc b/Singular/minpoly.cc
index 87bb58e..c319099 100644
--- a/Singular/minpoly.cc
+++ b/Singular/minpoly.cc
@@ -6,7 +6,7 @@
 
 
 #include<cmath>
-#include <Singular/mod2.h>
+#include<Singular/mod2.h>
 //#include<iomanip>
 
 #include "minpoly.h"
diff --git a/Singular/misc_ip.cc b/Singular/misc_ip.cc
index a00659d..47c592a 100644
--- a/Singular/misc_ip.cc
+++ b/Singular/misc_ip.cc
@@ -14,7 +14,7 @@
 /*****************************************************************************/
 
 // include header files
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 #include <Singular/lists.h>
 #include <kernel/longrat.h>
 #include <Singular/misc_ip.h>
@@ -1220,4 +1220,11 @@ void siInit(char *name)
 }
 
 #ifdef LIBSINGULAR
+#ifdef HAVE_FACTORY
+// the init routines of factory need mmInit
+int mmInit( void )
+{
+  return 1;
+}
+#endif
 #endif
diff --git a/Singular/mmInit.cc b/Singular/mmInit.cc
deleted file mode 100644
index aa49bae..0000000
--- a/Singular/mmInit.cc
+++ /dev/null
@@ -1,8 +0,0 @@
-#include <kernel/mod2.h>
-#ifdef HAVE_FACTORY
-// the init routines of factory need mmInit
-int mmInit( void )
-{
-  return 1;
-}
-#endif
diff --git a/Singular/mpsr_Error.cc b/Singular/mpsr_Error.cc
index 44a0b28..c189743 100644
--- a/Singular/mpsr_Error.cc
+++ b/Singular/mpsr_Error.cc
@@ -11,7 +11,7 @@
  * Change History (most recent first):
  *
  ***************************************************************/
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 
 #ifdef HAVE_MPSR
 
diff --git a/Singular/mpsr_Get.cc b/Singular/mpsr_Get.cc
index 3fac95a..c681b03 100644
--- a/Singular/mpsr_Get.cc
+++ b/Singular/mpsr_Get.cc
@@ -12,7 +12,7 @@
  *
  ***************************************************************/
 
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 
 #ifdef HAVE_MPSR
 
diff --git a/Singular/mpsr_GetMisc.cc b/Singular/mpsr_GetMisc.cc
index 58b536b..641b82f 100644
--- a/Singular/mpsr_GetMisc.cc
+++ b/Singular/mpsr_GetMisc.cc
@@ -12,7 +12,7 @@
  *
  ***************************************************************/
 
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 
 #ifdef HAVE_MPSR
 
diff --git a/Singular/mpsr_GetPoly.cc b/Singular/mpsr_GetPoly.cc
index 88eef83..24bd201 100644
--- a/Singular/mpsr_GetPoly.cc
+++ b/Singular/mpsr_GetPoly.cc
@@ -10,7 +10,7 @@
  *
  *
  ***************************************************************/
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 
 #ifdef HAVE_MPSR
 #include "mylimits.h"
diff --git a/Singular/mpsr_Put.cc b/Singular/mpsr_Put.cc
index 449ff9e..539e408 100644
--- a/Singular/mpsr_Put.cc
+++ b/Singular/mpsr_Put.cc
@@ -13,7 +13,7 @@
  *    Updated putting routines to MP and MPP v1.1
  *
  ***************************************************************/
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 
 #ifdef HAVE_MPSR
 
diff --git a/Singular/mpsr_PutPoly.cc b/Singular/mpsr_PutPoly.cc
index bf57ac8..bcd93f4 100644
--- a/Singular/mpsr_PutPoly.cc
+++ b/Singular/mpsr_PutPoly.cc
@@ -13,7 +13,7 @@
  *    Updated routines to MP and MPP v1.1
  *
  ***************************************************************/
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 
 #ifdef HAVE_MPSR
 
diff --git a/Singular/mpsr_Tok.cc b/Singular/mpsr_Tok.cc
index a6818df..a3801f5 100644
--- a/Singular/mpsr_Tok.cc
+++ b/Singular/mpsr_Tok.cc
@@ -16,7 +16,7 @@
 #include <sys/types.h>
 #include <unistd.h>
 
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 
 #ifdef HAVE_MPSR
 
diff --git a/Singular/mpsr_sl.cc b/Singular/mpsr_sl.cc
index 5e8f571..1253e38 100644
--- a/Singular/mpsr_sl.cc
+++ b/Singular/mpsr_sl.cc
@@ -8,7 +8,7 @@
  *  Created: 12/00
  *******************************************************************/
 
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 
 #ifdef HAVE_MPSR
 
diff --git a/Singular/ndbm.cc b/Singular/ndbm.cc
index 2cb2986..c03cb68 100644
--- a/Singular/ndbm.cc
+++ b/Singular/ndbm.cc
@@ -10,7 +10,7 @@
 //
 //**************************************************************************/
 
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 #ifdef HAVE_DBM
 #ifndef HPUX_9
 #include <strings.h>
diff --git a/Singular/pcv.cc b/Singular/pcv.cc
index d9391f1..0f5091c 100644
--- a/Singular/pcv.cc
+++ b/Singular/pcv.cc
@@ -5,7 +5,7 @@
 * ABSTRACT: conversion between polys and coef vectors
 */
 
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 
 #ifdef HAVE_PCV
 //#if !defined(HAVE_DYNAMIC_LOADING) || defined(BUILD_MODULE)
diff --git a/Singular/pipeLink.cc b/Singular/pipeLink.cc
index 47e3b77..913c88b 100644
--- a/Singular/pipeLink.cc
+++ b/Singular/pipeLink.cc
@@ -16,7 +16,7 @@
 #include <sys/socket.h>
 
 
-#include <Singular/mod2.h>
+#include "mod2.h"
 
 #include "tok.h"
 #include "ipid.h"
diff --git a/Singular/pyobject.cc b/Singular/pyobject.cc
index 51a8882..354b5b6 100644
--- a/Singular/pyobject.cc
+++ b/Singular/pyobject.cc
@@ -240,7 +240,7 @@ protected:
     PyErr_Fetch(&pType, &pMessage, &pTraceback);
     
     Werror("pyobject error occured");
-    Werror("%s", PyString_AsString(pMessage));
+    Werror(PyString_AsString(pMessage));
     
     Py_XDECREF(pType);
     Py_XDECREF(pMessage);
diff --git a/Singular/scanner.cc b/Singular/scanner.cc
index 9847fa1..aa186ce 100644
--- a/Singular/scanner.cc
+++ b/Singular/scanner.cc
@@ -560,7 +560,7 @@ char *yytext;
 #include <stdlib.h>
 #include <ctype.h>
 
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 #include <omalloc/omalloc.h>
 #include <Singular/tok.h>
 #include <Singular/stype.h>
diff --git a/Singular/scanner.l b/Singular/scanner.l
index b78f242..8298e71 100644
--- a/Singular/scanner.l
+++ b/Singular/scanner.l
@@ -7,7 +7,7 @@
 #include <stdlib.h>
 #include <ctype.h>
 
-#include "mod2.h"
+#include <kernel/mod2.h>
 #include <omalloc/omalloc.h>
 #include <Singular/tok.h>
 #include <Singular/stype.h>
diff --git a/Singular/sdb.cc b/Singular/sdb.cc
index be15a91..ea0011f 100644
--- a/Singular/sdb.cc
+++ b/Singular/sdb.cc
@@ -7,7 +7,7 @@
 
 #include <unistd.h>   // for unlink,fork,execlp,getpid
 #include <sys/wait.h> // for wait
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 #include <Singular/tok.h>
 #include <kernel/options.h>
 #include <omalloc/omalloc.h>
diff --git a/Singular/silink.cc b/Singular/silink.cc
index 3d64a87..b3af337 100644
--- a/Singular/silink.cc
+++ b/Singular/silink.cc
@@ -12,7 +12,7 @@
 #include <sys/stat.h>
 #include <unistd.h>
 
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 #include <Singular/tok.h>
 #include <kernel/options.h>
 #include <omalloc/omalloc.h>
diff --git a/Singular/sing_dbm.cc b/Singular/sing_dbm.cc
index fe8990d..bcbd993 100644
--- a/Singular/sing_dbm.cc
+++ b/Singular/sing_dbm.cc
@@ -12,7 +12,7 @@
 #  include <fcntl.h>
 #  include <errno.h>
 
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 
 #ifdef HAVE_DBM
 
diff --git a/Singular/sing_win.cc b/Singular/sing_win.cc
index 30dc60f..00a7062 100644
--- a/Singular/sing_win.cc
+++ b/Singular/sing_win.cc
@@ -6,7 +6,7 @@
 * ABSTRACT: Windows specific routines
 */
 
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 #ifdef ix86_Win
 #include <windows.h>
 #include <winuser.h>
diff --git a/Singular/slInit_Dynamic.cc b/Singular/slInit_Dynamic.cc
index 0fa703c..3830612 100644
--- a/Singular/slInit_Dynamic.cc
+++ b/Singular/slInit_Dynamic.cc
@@ -13,7 +13,7 @@
  * MP link Extension inits
  *
  ***************************************************************/
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 #include <Singular/silink.h>
 #include <Singular/slInit.h>
 #include <kernel/mod_raw.h>
diff --git a/Singular/slInit_Static.cc b/Singular/slInit_Static.cc
index 207dea0..a19a4f8 100644
--- a/Singular/slInit_Static.cc
+++ b/Singular/slInit_Static.cc
@@ -13,7 +13,7 @@
  * MP link Extension inits
  *
  ***************************************************************/
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 #include <Singular/silink.h>
 #include <Singular/slInit.h>
 
diff --git a/Singular/ssiLink.cc b/Singular/ssiLink.cc
index 938a60e..ff19a2a 100644
--- a/Singular/ssiLink.cc
+++ b/Singular/ssiLink.cc
@@ -22,7 +22,7 @@
 
 
 
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 // #include "mod2.h"
 
 #include <Singular/tok.h>
diff --git a/Singular/subexpr.cc b/Singular/subexpr.cc
index 0415134..873c0a9 100644
--- a/Singular/subexpr.cc
+++ b/Singular/subexpr.cc
@@ -11,7 +11,7 @@
 #include <ctype.h>
 #include <unistd.h>
 
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 #include <kernel/intvec.h>
 #include <kernel/bigintmat.h>
 #include <Singular/tok.h>
diff --git a/Singular/tesths.cc b/Singular/tesths.cc
index 3957c83..6ecb9b1 100644
--- a/Singular/tesths.cc
+++ b/Singular/tesths.cc
@@ -12,7 +12,7 @@
 #include <stdlib.h>
 #include <time.h>
 #include <errno.h>
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 #include <Singular/tok.h>
 #include <kernel/options.h>
 #include <Singular/ipshell.h>
diff --git a/Singular/walk.cc b/Singular/walk.cc
index d5b61f2..49bd804 100644
--- a/Singular/walk.cc
+++ b/Singular/walk.cc
@@ -45,7 +45,7 @@
 #include <sys/types.h>
 
 
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 #include <kernel/intvec.h>
 #include <Singular/cntrlc.h>
 #include <kernel/options.h>
diff --git a/Singular/walk_ip.cc b/Singular/walk_ip.cc
index 8afc077..b1627f0 100644
--- a/Singular/walk_ip.cc
+++ b/Singular/walk_ip.cc
@@ -11,7 +11,7 @@
 #include <ctype.h>
 #include <math.h>
 
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 #include <Singular/tok.h>
 #include <kernel/options.h>
 #include <Singular/ipid.h>
diff --git a/Singular/wrapper.cc b/Singular/wrapper.cc
index 7884e9f..07a2e2f 100755
--- a/Singular/wrapper.cc
+++ b/Singular/wrapper.cc
@@ -1,5 +1,5 @@
 #include <string.h>
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 #include <kernel/febase.h>
 #include <kernel/polys.h>
 #include <kernel/kstd1.h>
diff --git a/doc/Makefile.in b/doc/Makefile.in
index a92a7d7..f3ea4cf 100644
--- a/doc/Makefile.in
+++ b/doc/Makefile.in
@@ -44,10 +44,7 @@ MKINSTALLDIRS   = ../mkinstalldirs
 GZIP            = @MYGZIP@
 UUDECODE        = @UUDECODE@
 
-CP              = /bin/cp
-CHMOD           = /bin/chmod
 PERL            = @PERL@
-SED             = /bin/sed
 TEX             = tex
 MAKEINFO        = @MAKEINFO@ --force
 TEXI2PDF        = @TEXI2PDF@
@@ -71,7 +68,7 @@ EX_SUBDIR       = ./examples
 CHKSUM_DB       = ${DOC_SUBDIR}/chksum
 DOC2TEX_EXAMPLE_EXCLUSIONS = @DOC2TEX_EXAMPLE_EXCLUSIONS@
 DOC2TEX         = ${PERL} ./doc2tex.pl -docdir ${DOC_SUBDIR} \
-                  -Singular /bin/true -verbose ${VERBOSE} -make ${MAKE} \
+                  -Singular ${SINGULAR} -verbose ${VERBOSE} -make ${MAKE} \
 		  -exdir ${EX_SUBDIR} ${DOC2TEX_EXAMPLE_EXCLUSIONS}
 TAG		=
 PL2DOC		= ${PERL} ./pl2doc.pl ${TAG} -db ${CHKSUM_DB}
@@ -171,10 +168,10 @@ usercard.dvi: usercard.tex singcard.tex
 	${TEX} $<
 
 s-plural.tex: plural.tex
-	$(SED) -e "s/BR_PLURAL_BR/(plural)/g" <plural.tex >s-plural.tex
+	sed -e "s/BR_PLURAL_BR/(plural)/g" <plural.tex >s-plural.tex
 
 s-plulibs.tex: plulibs.tex
-	$(SED) -e "s/BR_PLURAL_BR/(plural)/g" <plulibs.tex >s-plulibs.tex
+	sed -e "s/BR_PLURAL_BR/(plural)/g" <plulibs.tex >s-plulibs.tex
 
 # postscript stuff
 ps: dvi manual.ps usercard.ps
@@ -245,7 +242,7 @@ endif
 	${PERL} ${TEXI2HTML} -init_file t2h_standalone.init -split none -out_file $@ $<
 
 % : %.txt
-	$(CP) $< $@
+	cp $< $@
 
 standalone: standalone-txt standalone-html ${STANDALONE_FILES}
 
@@ -256,15 +253,15 @@ WWW_DIR	= /singular/www/2-0/
 FTP_DIR = /ftp/pub/Math/Singular/Development
 
 install-standalone: standalone
-	$(CP) INSTALL_unix.html COPYING.html INSTALL_win.html ${WWW_DIR}
-	$(CP) COPYING COPYING.html ${FTP_DIR}
-	$(CP) INSTALL_unix INSTALL_unix.html ${FTP_DIR}
-	$(CP) INSTALL_win INSTALL_win.html ${FTP_DIR}
-	$(CP) README_ftp.html ${FTP_DIR}/README.html
-	$(CP) README_ftp ${FTP_DIR}/README
-	$(CP) NEWS.html NEWS ${FTP_DIR}
-	$(CP) NEWS.html ${WWW_DIR}
-	- $(CHMOD) g+w ${FTP_DIR}/*
+	cp INSTALL_unix.html COPYING.html INSTALL_win.html ${WWW_DIR}
+	cp COPYING COPYING.html ${FTP_DIR}
+	cp INSTALL_unix INSTALL_unix.html ${FTP_DIR}
+	cp INSTALL_win INSTALL_win.html ${FTP_DIR}
+	cp README_ftp.html ${FTP_DIR}/README.html
+	cp README_ftp ${FTP_DIR}/README
+	cp NEWS.html NEWS ${FTP_DIR}
+	cp NEWS.html ${WWW_DIR}
+	- chmod g+w ${FTP_DIR}/*
 
 
 
@@ -299,7 +296,7 @@ images/%.xbm : images/%.xbm.uu
 
 ${IMAGES_HTML} : ${IMAGES_SRC}
 	test -d ${HTML_SUBDIR} || mkdir ${HTML_SUBDIR}
-	$(CP) ${IMAGES_SRC} ${HTML_SUBDIR}
+	cp ${IMAGES_SRC} ${HTML_SUBDIR}
 
 ###########################################################
 # misc targets
@@ -322,13 +319,13 @@ install-sharedist: singular.hlp html singular.idx \
 	${MKINSTALLDIRS} ${install_prefix}
 	${MKINSTALLDIRS} ${install_infodir}
 	${INSTALL_DATA} singular.hlp ${install_infodir}
-	$(CHMOD) -R +rX ${install_infodir}
+	chmod -R +rX ${install_infodir}
 	${MKINSTALLDIRS} ${install_htmldir}
-	$(CP) ${HTML_SUBDIR}/*.htm ${install_htmldir}
-	$(CP) ${HTML_SUBDIR}/*.gif ${install_htmldir}
-	-$(CP) ${HTML_SUBDIR}/*.png ${install_htmldir}
-	$(CP) ${HTML_SUBDIR}/*.jpg ${install_htmldir}
-	$(CHMOD) -R +rX ${install_htmldir}
+	cp ${HTML_SUBDIR}/*.htm ${install_htmldir}
+	cp ${HTML_SUBDIR}/*.gif ${install_htmldir}
+	-cp ${HTML_SUBDIR}/*.png ${install_htmldir}
+	cp ${HTML_SUBDIR}/*.jpg ${install_htmldir}
+	chmod -R +rX ${install_htmldir}
 	${MKINSTALLDIRS} ${install_docdir}
 	${INSTALL_DATA} singular.idx ${install_docdir}
 	${INSTALL_DATA} ../GPL2 ${install_prefix}/GPL2
@@ -339,15 +336,15 @@ install-sharedist: singular.hlp html singular.idx \
 	${INSTALL_DATA} NEWS.html ${install_prefix}
 	${INSTALL_DATA} README_distribution.txt ${install_prefix}/README
 	${INSTALL_DATA} README_distribution.html ${install_prefix}/README.html
-	$(CHMOD) -R +rX ${install_docdir}
-	$(CHMOD) -R +rX ${install_prefix}
+	chmod -R +rX ${install_docdir}
+	chmod -R +rX ${install_prefix}
 	${MKINSTALLDIRS} ${install_exdir}
-	$(CP) -R examples ${install_prefix}
+	cp -R examples ${install_prefix}
 	/bin/rm -f ${install_prefix}/examples/[A-Z]*.res
 	/bin/rm -f ${install_prefix}/examples/*.res
 	/bin/rm -f ${install_prefix}/examples/[A-Z]*.inc
 	/bin/rm -f ${install_prefix}/examples/*.inc
-	$(CHMOD) -R +rX ${install_prefix}/
+	chmod -R +rX ${install_prefix}/
 
 # use 'make INSTALL_unix.olaf.txt INSTALL_unix.olaf.html SINGUNAME=olaf'
 # to generate these files for uname 'olaf'
@@ -371,9 +368,9 @@ texi2html = $(TEXI2HTML:%.pl=%)
 lib2doc.tar.gz:
 	rm -rf lib2doc lib2doc.tar.gz
 	mkdir lib2doc
-	$(CP) Makefile.lib2doc lib2doc/Makefile
+	cp Makefile.lib2doc lib2doc/Makefile
 	${MAKEINFO} --no-header --paragraph-indent none -o lib2doc/README lib2doc.texi
-	$(CP) pl2doc.pl doc2tex.pl ${texi2html} lib2doc
+	cp pl2doc.pl doc2tex.pl ${texi2html} lib2doc
 	tar cf lib2doc.tar lib2doc
 	${GZIP} lib2doc.tar
 
diff --git a/doc/cones.doc b/doc/cones.doc
index d03c68a..da2a600 100644
--- a/doc/cones.doc
+++ b/doc/cones.doc
@@ -56,7 +56,7 @@ vectors of L is the lineality space of the cone,
 if either bit is 0, then program computes the information itself.
 @item @strong{Example:}
 @smallexample
- at c example tag:gfan
+ at c example
 // Let's define a cone in R^3 generated by the following half lines:
 intmat HL[5][3]= 
  1,0, 0,
@@ -121,7 +121,7 @@ if lower bit is 1, then program assumes the kernel of E is the span of the cone,
 if either bit is 0, then program computes the information itself. 
 @item @strong{Example:}
 @smallexample
- at c example tag:gfan
+ at c example
 // Let's define a cone in R^3 given by the following inequalities:
 intmat IE[6][3]=  
 1,3,5,
@@ -217,7 +217,7 @@ int
 ambient dimension of the cone;
 @item @strong{Example:}
 @smallexample
- at c example tag:gfan
+ at c example
 intmat M1[2][2]=
 1,0,
 0,1;
@@ -245,7 +245,7 @@ cone
 canonicalized version of the cone, no more redundant inequalities and equations
 @item @strong{Example:}
 @smallexample
- at c example tag:gfan
+ at c example
 intmat M[11][3]=
 0,-1,1,
 -1,1,0,
@@ -280,7 +280,7 @@ int
 codimension of the cone;
 @item @strong{Example:}
 @smallexample
- at c example tag:gfan
+ at c example
 intmat M1[1][2]=
 1,0;
 cone c1=coneViaPoints(M1);
@@ -306,7 +306,7 @@ cone
 local version of the given cone around the given point of the cone
 @item @strong{Example:}
 @smallexample
- at c example tag:gfan
+ at c example
 intmat M[3][3]=
 1,0,0,
 0,1,0,
@@ -337,7 +337,7 @@ int
 1 iff c1 contains c2 as a face; 0 otherwise
 @item @strong{Example:}
 @smallexample
- at c example tag:gfan
+ at c example
 intmat M[2][2]=
 1,0,
 0,1;
@@ -368,7 +368,7 @@ int
 1 iff c1 entirely contains c2 resp. iff c contains the given point, possibly on one of its facets; 0 otherwise
 @item @strong{Example:}
 @smallexample
- at c example tag:gfan
+ at c example
 intmat M[2][2]=
 1,0,
 0,1;
@@ -405,7 +405,7 @@ int
 1 iff the cone contains a point with positive coordinates in its relative interior; 0 otherwise
 @item @strong{Example:}
 @smallexample
- at c example tag:gfan
+ at c example
 intmat M1[2][2]=
 1,1,
 1,-1;
@@ -433,7 +433,7 @@ int
 1 iff the given cone contains the given point in its relative interior; 0 otherwise
 @item @strong{Example:}
 @smallexample
- at c example tag:gfan
+ at c example
 intmat M[2][2]=
 1,0,
 0,1;
@@ -462,7 +462,7 @@ cone if both input arguments are cones, else polytope
 the hull of the two objects
 @item @strong{Example:}
 @smallexample
- at c example tag:gfan
+ at c example
 intmat M1[2][2]=
 1,0,
 0,1;
@@ -504,7 +504,7 @@ cone if both input arguments are cones, else polytope
 the intersection of the two objects
 @item @strong{Example:}
 @smallexample
- at c example tag:gfan
+ at c example
 intmat M1[2][2]=
 1,0,
 0,1;
@@ -545,7 +545,7 @@ int
 dimension of the cone
 @item @strong{Example:}
 @smallexample
- at c example tag:gfan
+ at c example
 intmat M1[1][2]=
 1,0;
 cone c1=coneViaPoints(M1);
@@ -571,7 +571,7 @@ cone
 the dual of the cone
 @item @strong{Example:}
 @smallexample
- at c example tag:gfan
+ at c example
 intmat M1[2][2]=
 1,0,
 0,1;
@@ -604,7 +604,7 @@ bigintmat
 equations given by the cone
 @item @strong{Example:}
 @smallexample
- at c example tag:gfan
+ at c example
 intmat M1[2][2]=
 1,0,
 0,1;
@@ -634,7 +634,7 @@ bigintmat
 inner normal vectors of the facets of the cone
 @item @strong{Example:}
 @smallexample
- at c example tag:gfan
+ at c example
 intmat M1[2][2]=
 1,0,
 0,1;
@@ -664,7 +664,7 @@ bigintmat
 generating vectors of the lineality space of the cone
 @item @strong{Example:}
 @smallexample
- at c example tag:gfan
+ at c example
 intmat M[5][3]=
 1,0,0,
 0,1,0,
@@ -691,7 +691,7 @@ bigintmat
 generating vectors of the span of the cone
 @item @strong{Example:}
 @smallexample
- at c example tag:gfan
+ at c example
 intmat M[3][5]=
 1,0,0,0,0,
 0,1,0,0,0,
@@ -717,7 +717,7 @@ intvec
 linear forms of the cone (can be set by setLinearForms); returns empty intmat if not set
 @item @strong{Example:}
 @smallexample
- at c example tag:gfan
+ at c example
 intmat M[2][3]=
 -1,0,0,
 0,-1,0;
@@ -744,7 +744,7 @@ int
 getMultiplicity of the cone (can be set by setMultiplicity); returns 1 if not set
 @item @strong{Example:}
 @smallexample
- at c example tag:gfan
+ at c example
 intmat M[2][3]=
 -1,0,0,
 0,-1,0;
@@ -769,7 +769,7 @@ bigintmat
 inequalities given by the cone
 @item @strong{Example:}
 @smallexample
- at c example tag:gfan
+ at c example
 intmat M1[2][2]=
 1,0,
 0,1;
@@ -798,7 +798,7 @@ int
 1 iff the cone is the entire ambient space; 0 otherwise
 @item @strong{Example:}
 @smallexample
- at c example tag:gfan
+ at c example
 cone c1;
 isFullSpace(c1);
 intmat M2[2][2]=
@@ -830,7 +830,7 @@ int
 1 iff the cone is just the origin of the ambient space; 0 otherwise
 @item @strong{Example:}
 @smallexample
- at c example tag:gfan
+ at c example
 cone c1; // full cone in zero-dimensional ambient space
 isOrigin(c1);
 intmat M2[2][2]=
@@ -863,7 +863,7 @@ int
 1 iff the cone resp. fan is simplicial; 0 otherwise
 @item @strong{Example:}
 @smallexample
- at c example tag:gfan
+ at c example
 intmat M1[3][3]=
 1,0,0,
 0,1,0,
@@ -913,7 +913,7 @@ int
 dimension of the lineality space of the cone
 @item @strong{Example:}
 @smallexample
- at c example tag:gfan
+ at c example
 intmat M1[3][3]=
 1,0,0,
 0,1,0,
@@ -944,7 +944,7 @@ cone
 the lineality space of the cone as a new cone
 @item @strong{Example:}
 @smallexample
- at c example tag:gfan
+ at c example
 intmat M1[3][3]=
 1,0,0,
 0,1,0,
@@ -977,7 +977,7 @@ cone
 the negated (or negative) of the cone
 @item @strong{Example:}
 @smallexample
- at c example tag:gfan
+ at c example
 intmat M[2][2]=
 1,0,
 0,1;
@@ -1002,7 +1002,7 @@ bigintmat
 quotient of Z^n intersected with the span of the cone with Z^n intersected with its lineality space
 @item @strong{Example:}
 @smallexample
- at c example tag:gfan
+ at c example
 intmat M[3][2]=
 1,0,
 0,1,
@@ -1027,7 +1027,7 @@ bigintmat
 random point in the relative interior in c
 @item @strong{Example:}
 @smallexample
- at c example tag:gfan
+ at c example
 intmat M[3][2]=
 1,0,
 0,1,
@@ -1052,7 +1052,7 @@ bigintmat
 rays of the cone outside the lineality space, rays inside the lineality space will be ignored
 @item @strong{Example:}
 @smallexample
- at c example tag:gfan
+ at c example
 intmat M1[2][2]=
 1,0,
 0,1;
@@ -1083,7 +1083,7 @@ intvec
 point in the relative interior of the cone
 @item @strong{Example:}
 @smallexample
- at c example tag:gfan
+ at c example
 intmat M1[2][2]=
 1,0,
 0,1;
@@ -1111,7 +1111,7 @@ intvec
 if dimension(c)=linealityDimension(c)+1, then the quotient lattice of Z^n intersected with the span and Z^n intersected with the lineality space is Z^1 and the class of the cone is a semigroup. returns a generator of that semigroup. (like quotientLatticeBasis(cone c), but as intvec)
 @item @strong{Example:}
 @smallexample
- at c example tag:gfan
+ at c example
 intmat M[3][2]=
 1,0,
 0,1,
@@ -1135,7 +1135,7 @@ semigroupGenerator(c);
 adds the information of a linear form to the cone
 @item @strong{Example:}
 @smallexample
- at c example tag:gfan
+ at c example
 intmat M[2][3]=
 -1,0,0,
 0,-1,0;
@@ -1161,7 +1161,7 @@ getLinearForms(c);
 adds the information of a multiplicity to the cone
 @item @strong{Example:}
 @smallexample
- at c example tag:gfan
+ at c example
 intmat M[2][3]=
 -1,0,0,
 0,-1,0;
@@ -1186,7 +1186,7 @@ bigintmat
 generating vectors of the orthogonal complement of the span of the cone
 @item @strong{Example:}
 @smallexample
- at c example tag:gfan
+ at c example
 intmat M[3][5]=
 1,0,0,0,0,
 0,1,0,0,0,
@@ -1211,7 +1211,7 @@ intvec
 special-purpose interior point which supports recognition of symmetries among non-intersecting cones (used in implementation of fans)
 @item @strong{Example:}
 @smallexample
- at c example tag:gfan
+ at c example
 intmat M1[2][2]=
 1,0,
 0,1;
@@ -1305,7 +1305,7 @@ cone
 1 iff c is contained in the collection of cones that is f; 0 otherwise
 @item @strong{Example:}
 @smallexample
- at c example tag:gfan
+ at c example
 fan f=emptyFan(2);
 intmat M[2][2]=
 1,0,
@@ -1331,7 +1331,7 @@ fan
 empty fan in ambient dimension d
 @item @strong{Example:}
 @smallexample
- at c example tag:gfan
+ at c example
 fan f=emptyFan(2);
 f;
 @c example
@@ -1352,7 +1352,7 @@ fan
 fan generated by the cones supplied, either via a list or via single arguments
 @item @strong{Example:}
 @smallexample
- at c example tag:gfan
+ at c example
 intmat M[2][2]=1,0,0,1;
 cone c=coneViaPoints(M);
 intmat N[2][2]=1,0,0,-1;
@@ -1379,7 +1379,7 @@ fan
 full fan in ambient dimension d
 @item @strong{Example:}
 @smallexample
- at c example tag:gfan
+ at c example
 fan f=fullFan(2);
 f;
 @c example
@@ -1399,7 +1399,7 @@ intvec
 F-Vector of the fan
 @item @strong{Example:}
 @smallexample
- at c example tag:gfan
+ at c example
 fan f=emptyFan(2);
 fVector(f);
 intmat M[2][2]=1,0,0,1;
@@ -1425,7 +1425,7 @@ cone
 cone (orbit=0) or orbit (orbit=1) of a certain index (ranges from 1 to numberOfConesOfDimension(f,*,*,*)) in a given dimension; if maximal=0, all cones and orbits are considered, if maximal=1, only maximal cones and orbits are considered; the default flags for orbit and maximal is 0.
 @item @strong{Example:}
 @smallexample
- at c example tag:gfan
+ at c example
 intmat M[3][3]=
 1,0,0,
 0,1,0,
@@ -1454,7 +1454,7 @@ none
 inserts the cone into the fan; checks for compatibility beforehand unless check is passed and equal 0
 @item @strong{Example:}
 @smallexample
- at c example tag:gfan
+ at c example
 fan f=emptyFan(3);
 f;
 intmat M[3][3]=
@@ -1482,7 +1482,7 @@ int
 1 iff cone is compatible with the fan; 0 otherwise
 @item @strong{Example:}
 @smallexample
- at c example tag:gfan
+ at c example
 fan f=emptyFan(3);
 intmat M1[3][3]=
 1,0,0,
@@ -1520,7 +1520,7 @@ isCompatible(f,c3);
 @c 1 iff the fan is complete; 0 otherwise
 @c @item @strong{Example:}
 @c @smallexample
- at c @c example tag:gfan
+ at c @c example
 @c fan f=fullFan(2);
 @c isComplete(f);
 @c fan g=emptyFan(2);
@@ -1560,7 +1560,7 @@ int
 1 iff the fan is pure; 0 otherwise
 @item @strong{Example:}
 @smallexample
- at c example tag:gfan
+ at c example
 fan f=fullFan(2);
 isPure(f);
 fan g=emptyFan(2);
@@ -1592,7 +1592,7 @@ int
 number of maximal cones in f
 @item @strong{Example:}
 @smallexample
- at c example tag:gfan
+ at c example
 fan f=emptyFan(3);
 nmaxcones(f);
 intmat M1[3][3]=
@@ -1625,7 +1625,7 @@ int
 number of cones in f
 @item @strong{Example:}
 @smallexample
- at c example tag:gfan
+ at c example
 fan f=emptyFan(3);
 ncones(f);
 intmat M1[3][3]=
@@ -1658,7 +1658,7 @@ int
 number of cones (orbit=0) or orbits (orbit=1) of a given dimension; if maximal=0, then all cones are considered, if maximal=1, only maximal cones are considered
 @item @strong{Example:}
 @smallexample
- at c example tag:gfan
+ at c example
 fan f=emptyFan(3);
 ncones(f);
 intmat M[3][3]=
@@ -1693,7 +1693,7 @@ none
 removes the cone from the fan; checks for compatibility beforehand unless check is passed and equal 0
 @item @strong{Example:}
 @smallexample
- at c example tag:gfan
+ at c example
 intmat M[2][2]=1,0,0,1;
 intmat N[2][2]=1,0,1,-1;
 cone c=coneViaPoints(M);
@@ -1744,7 +1744,7 @@ if flags is 1, then program assumes that each row vector of M generates a ray in
 if flags is 0, then program computes that information itself.
 @item @strong{Example:}
 @smallexample
- at c example tag:gfan
+ at c example
 // This is a polytope in R^2 generated by (0,0), (1,0), (0,1), (0,0);
 intmat V[4][3]= 
 1,0,0,
@@ -1792,7 +1792,7 @@ if lower bit is 1, then program assumes the kernel of E is the span of the cone,
 if either bit is 0, then program computes the information itself. 
 @item @strong{Example:}
 @smallexample
- at c example tag:gfan
+ at c example
 intmat IE[2][3]=
 1,0,0,
 0,1,0;
@@ -1839,7 +1839,7 @@ polytope
 Newton polytope of f 
 @item @strong{Example:}
 @smallexample
- at c example tag:gfan
+ at c example
 intmat M[4][2]=
 0,0,
 1,0,
@@ -1864,7 +1864,7 @@ polytope
 Newton polytope of f 
 @item @strong{Example:}
 @smallexample
- at c example tag:gfan
+ at c example
 ring r;
 poly f=x+y+z;
 polytope p=newtonPolytope(f);
@@ -1886,7 +1886,7 @@ intmat
 vertices of p 
 @item @strong{Example:}
 @smallexample
- at c example tag:gfan
+ at c example
 intmat M[4][3]=
 1,0,0,
 1,2,0,
diff --git a/doc/singular.doc b/doc/singular.doc
index c7dad7e..602ab1c 100644
--- a/doc/singular.doc
+++ b/doc/singular.doc
@@ -960,7 +960,7 @@ Comments should be send to the author of the library directly.
 @node divisors_lib,ffsolve_lib,classifyceq_lib, Experimental libraries
 @subsection divisors_lib
 
- at c lib divisors.lib no_ex
+ at c lib divisors.lib
 @c ----------------------------------------------------------
 @node ffsolve_lib, findifs_lib, divisors_lib, Experimental libraries
 @subsection ffsolve_lib
@@ -992,7 +992,7 @@ Issues:
 @node gitfan_lib,lll_lib, finitediff_lib, Experimental libraries
 @subsection gitfan_lib
 
- at c lib gitfan.lib no_ex
+ at c lib gitfan.lib
 
 @c ----------------------------------------------------------
 @node lll_lib, locnormal_lib, gitfan_lib, Experimental libraries
diff --git a/emacs/Makefile.in b/emacs/Makefile.in
index 47c57e1..86ba445 100644
--- a/emacs/Makefile.in
+++ b/emacs/Makefile.in
@@ -42,12 +42,9 @@ lib-cmpl.el: ${prefix}/Singular/Makefile lib.pl
 	(cd ${prefix}/Singular;${MAKE} --no-print-directory -s -f Makefile echoLIBS) > lib-temp
 	${PERL} lib.pl -s ${singulardir} `cat lib-temp` > lib-cmpl.el
 
-clean mostlyclean:
+clean mostlyclean distclean:
 	rm -f cmd-cmpl.el hlp-cmpl.el lib-cmpl.el ex-cmpl.el
 
-distclean: mostlyclean
-	rm -f Makefile
-
 install-sharedist: all
 	${MKINSTALLDIRS} ${emacsdir}
 	${INSTALL_DATA} cmd-cmpl.el ${emacsdir}
diff --git a/factory/GNUmakefile.in b/factory/GNUmakefile.in
index 45836f9..d20b6a2 100644
--- a/factory/GNUmakefile.in
+++ b/factory/GNUmakefile.in
@@ -386,24 +386,24 @@ distfiles :=	\
 #
 
 # how to create library objects
-%.o: %.cc config.h |factoryconf.h
+%.o: %.cc config.h factoryconf.h
 	$(CXX) -c $< $(LIBCXXFLAGS) -o $@
 %.o: %.c config.h
 	$(CC) -c $< $(LIBCFLAGS) -o $@
 # the debug version:
-%.og: %.cc config.h |factoryconf.h
+%.og: %.cc config.h factoryconf.h
 	$(CXX) -g -c $< $(LIBCGGFLAGS) -o $@
 # the profiling version:
-%.op: %.cc config.h |factoryconf.h
+%.op: %.cc config.h factoryconf.h
 	$(CXX) -O -pg -c $< $(LIBCGGFLAGS) -o $@
 
 # how to create dependency files.  To avoid broken dependency files
 # (which in turn break this GNUmakefile) we first generate them in
 # a temporary file which we then move to the destination file.
-%.dtmp: %.cc |factoryconf.h config.h
+%.dtmp: %.cc factoryconf.h config.h
 	echo $*.d "\\" > $@
 	$(CXX) -MM $< $(DEPCXXFLAGS) >> $@
-%.dtmp: %.c |factoryconf.h config.h
+%.dtmp: %.c factoryconf.h config.h
 	echo $*.d "\\" > $@
 	$(CXX) -MM $< $(DEPCXXFLAGS) >> $@
 %.dtmp: %.template
@@ -535,20 +535,19 @@ install_all:    install libsingcf_p.a
 install-nolns: install
 
 installcf:	cf
-		$(MKINSTALLDIRS) $(DESTDIR)$(libdir)
-		$(MKINSTALLDIRS) $(DESTDIR)$(includedir)
-		$(MKINSTALLDIRS) $(DESTDIR)$(templatedir)
-		$(INSTALL_DATA) $(libfactory) $(DESTDIR)$(libdir)/$(libfactory)
-		-$(INSTALL_DATA) libsingcf_g.a $(DESTDIR)$(libdir)/libsingcf_g.a
-		-$(INSTALL_DATA) libsingcf_p.a $(DESTDIR)$(libdir)/libsingcf_p.a
-		$(INSTALL_DATA) factory.h $(DESTDIR)$(includedir)/factory.h
-		$(INSTALL_DATA) cf_gmp.h $(DESTDIR)$(includedir)/cf_gmp.h
-		$(INSTALL_DATA) factoryconf.h $(DESTDIR)$(includedir)/factoryconf.h
+		$(MKINSTALLDIRS) $(libdir)
+		$(MKINSTALLDIRS) $(includedir)
+		$(INSTALL_DATA) $(libfactory) $(libdir)/$(libfactory)
+		-$(INSTALL_DATA) libsingcf_g.a $(libdir)/libsingcf_g.a
+		-$(INSTALL_DATA) libsingcf_p.a $(libdir)/libsingcf_p.a
+		$(INSTALL_DATA) factory.h $(includedir)/factory.h
+		$(INSTALL_DATA) cf_gmp.h $(includedir)/cf_gmp.h
+		$(INSTALL_DATA) factoryconf.h $(includedir)/factoryconf.h
 		for file in $(templateincl); do \
-		  $(INSTALL_DATA) $(srcdir)/templates/$$file $(DESTDIR)$(templatedir)/$$file; \
+		  $(INSTALL_DATA) $(srcdir)/templates/$$file $(templatedir)/$$file; \
 		done
 # we run `ranlib' another time for SUN machines
-		$(RANLIB) $(DESTDIR)$(libdir)/$(libfactory)
+		$(RANLIB) $(libdir)/$(libfactory)
 
 installmem:	mem
 		$(MKINSTALLDIRS) $(libdir)
@@ -669,10 +668,8 @@ $(srcdir)/configure: configure.in
 # seems gmake needs at least a trivial command.  otherwise all
 # files which depend on config.h will be remade even if congig.h
 # did not change.
-#
-# WTF?
-#config.h:	stamp-h
-#		@:
+config.h:	stamp-h
+		@:
 
 stamp-h:	config.h.in config.status
 		CONFIG_FILES= CONFIG_HEADERS=config.h ./config.status
@@ -684,11 +681,9 @@ GNUmakefile:	GNUmakefile.in config.status
 config.status:	configure
 		./config.status --recheck
 
-GMP_H_ = $(shell echo '\#include <gmp.h>' | $(CXX) $(LIBCXXFLAGS) -E - -M -MP | grep 'gmp\.h:$$' )
-GMP_H__ = $(GMP_H_:.h:=.h)
-
-cf_gmp.h: GNUmakefile $(GMP_H__)
-	@echo "Generating $@ from $(GMP_H__)...";
-	test -f "$(GMP_H__)"
-	grep -v '__GMP_DECLSPEC_XX|std::FILE' $(GMP_H__) > $@T
-	diff $@T $@ >/dev/null 2>/dev/null && rm $@T || mv $@T $@
+# create cf_gmp.h
+cf_gmp.h: GNUmakefile gen_cf_gmp.template
+	echo "#!/bin/sh" >gen_cf_gmp.sh 
+	echo "GMP_H_T=\"`$(CXX) $(LIBCXXFLAGS) -M gen_cf_gmp.cc|grep gmp.h` \"" >>gen_cf_gmp.sh 
+	cat gen_cf_gmp.template >>gen_cf_gmp.sh
+	$(SHELL) gen_cf_gmp.sh
diff --git a/factory/assert.h b/factory/assert.h
index d2933a1..3dd036b 100644
--- a/factory/assert.h
+++ b/factory/assert.h
@@ -128,9 +128,3 @@ extern "C" {
 #define PVIRT_CHARCC(msg) = 0
 #endif /* NOASSERT */
 /* }}} */
-
-
-//assert is expected to be available after '#include "assert.h"'
-#ifndef assert
-# define assert(a)
-#endif
diff --git a/factory/gen_cf_gmp.template b/factory/gen_cf_gmp.template
new file mode 100644
index 0000000..90389ac
--- /dev/null
+++ b/factory/gen_cf_gmp.template
@@ -0,0 +1,3 @@
+GMP_H=`echo $GMP_H_T| sed -e 's/^.*gmp.cc//' -e 's/ .$//'`
+echo generating cf_gmp.h from $GMP_H
+cat $GMP_H | grep -v __GMP_DECLSPEC_XX |grep -v std::FILE > cf_gmp.h
diff --git a/install-sh b/install-sh
index 9d00788..6781b98 100755
--- a/install-sh
+++ b/install-sh
@@ -59,13 +59,13 @@ fi
 # or use environment vars.
 
 chgrpprog=${CHGRPPROG-chgrp}
-chmodprog=${CHMODPROG-/bin/chmod}
+chmodprog=${CHMODPROG-chmod}
 chownprog=${CHOWNPROG-chown}
 cmpprog=${CMPPROG-cmp}
-cpprog=${CPPROG-/bin/cp}
+cpprog=${CPPROG-cp}
 mkdirprog=${MKDIRPROG-mkdir}
-mvprog=${MVPROG-/bin/mv}
-rmprog=${RMPROG-/bin/rm}
+mvprog=${MVPROG-mv}
+rmprog=${RMPROG-rm}
 stripprog=${STRIPPROG-strip}
 
 posix_glob='?'
@@ -447,7 +447,7 @@ do
     rmtmp=$dstdir/_rm.$$_
 
     # Trap to clean up those temp files at exit.
-    trap 'ret=$?; $(rmprog) -f "$dsttmp" "$rmtmp" && exit $ret' 0
+    trap 'ret=$?; rm -f "$dsttmp" "$rmtmp" && exit $ret' 0
 
     # Copy the file name to the temp name.
     (umask $cp_umask && $doit_exec $cpprog "$src" "$dsttmp") &&
@@ -477,7 +477,7 @@ do
        test "$old" = "$new" &&
        $cmpprog "$dst" "$dsttmp" >/dev/null 2>&1
     then
-      $(rmprog) -f "$dsttmp"
+      rm -f "$dsttmp"
     else
       # Rename the file to the real destination.
       $doit $mvcmd -f "$dsttmp" "$dst" 2>/dev/null ||
diff --git a/kernel/F4.cc b/kernel/F4.cc
index d72939c..93cfedb 100644
--- a/kernel/F4.cc
+++ b/kernel/F4.cc
@@ -1,4 +1,4 @@
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 #include <kernel/F4.h>
 #include <kernel/tgb_internal.h>
 #include <kernel/tgbgauss.h>
diff --git a/kernel/F5cData.cc b/kernel/F5cData.cc
index 384ebc9..be2021a 100644
--- a/kernel/F5cData.cc
+++ b/kernel/F5cData.cc
@@ -9,7 +9,7 @@
  * these data types is defined.
  */
 
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 
 #ifdef HAVE_F5C
 #include <kernel/kutil.h>
diff --git a/kernel/F5cLists.cc b/kernel/F5cLists.cc
index 8922036..daab9db 100644
--- a/kernel/F5cLists.cc
+++ b/kernel/F5cLists.cc
@@ -1,4 +1,4 @@
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 
 #ifdef HAVE_F5C
 #include <kernel/kutil.h>
diff --git a/kernel/GMPrat.cc b/kernel/GMPrat.cc
index 628d90d..8d73221 100644
--- a/kernel/GMPrat.cc
+++ b/kernel/GMPrat.cc
@@ -8,7 +8,7 @@
 
 #define  GMPRAT_CC
 
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 
 #ifdef HAVE_SPECTRUM
 
diff --git a/kernel/Makefile.in b/kernel/Makefile.in
index 4540b31..adc9cd9 100644
--- a/kernel/Makefile.in
+++ b/kernel/Makefile.in
@@ -40,7 +40,6 @@ INSTALL_PROGRAM	= @INSTALL_PROGRAM@
 INSTALL_DATA	= @INSTALL_DATA@
 MKINSTALLDIRS   = ./mkinstalldirs
 LN_S		= @LN_S@
-SED		= /bin/sed
 
 ##
 ## compiler and linker options
@@ -49,7 +48,7 @@ PIPE		= @PIPE@
 CFLAGS		= @CFLAGS@ ${PIPE} 
 CXXFLAGS	= @CXXFLAGS@ ${PIPE} 
 CXXTEMPLFLAGS	= @CXXTEMPLFLAGS@
-CPPFLAGS	= -I${srcdir} -I.. -I at prefix@  @CPPFLAGS@
+CPPFLAGS	= -I${srcdir} -I.. -I at prefix@  @CPPFLAGS@ 
 DEFS		= -DNDEBUG -DOM_NDEBUG -D at SING_UNAME@ @DEFS@
 LDFLAGS		= @LDFLAGS@
 LD_DYN_FLAGS	= @LD_DYN_FLAGS@
@@ -92,7 +91,7 @@ endif
 # normal C++ source files
 CXXSOURCES=bigintmat.cc clapconv.cc \
     clapsing.cc \
-    febase.cc feResource.cc \
+    febase.cc feread.cc feResource.cc \
     ffields.cc hdegree.cc hilb.cc hutil.cc \
     sca.cc gring.cc gr_kstd2.cc summator.cc ncSAMult.cc ncSAFormula.cc \
     ideals.cc intvec.cc int64vec.cc \
@@ -120,7 +119,7 @@ CXXSOURCES=bigintmat.cc clapconv.cc \
 CXXSOURCES2	= SingularBuilder.cpp
 
 # normal C source files
-CSOURCES=weight0.c fegetopt.c dError.c mmstd.c
+CSOURCES=weight0.c fegetopt.c fereadl.c dError.c mmstd.c
 
 # C++ sources which are used if part of the kernel are dynamically linked
 ifeq ($(DL_KERNEL),1)
@@ -138,8 +137,7 @@ STATIC_SOURCES=p_Procs_Static.cc
 
 # special C++ source files (need extra compiling and/or linking), for which
 # dependencies should be generated
-ESOURCES=mmalloc.cc $(DL_KERNEL_SOURCES) $(DL_LIB_SOURCES) $(STATIC_SOURCES) feread.cc
-ECSOURCES=fereadl.c
+ESOURCES=mmalloc.cc $(DL_KERNEL_SOURCES) $(DL_LIB_SOURCES) $(STATIC_SOURCES)
 
 SOURCES=${CSOURCES} ${CXXSOURCES} \
 	prCopyTemplate.cc \
@@ -179,13 +177,13 @@ HEADERS=bigintmat.h hutil.h idrec.h stairc.h ideals.h \
 	p_Procs_Dynamic.h p_Procs_Impl.h p_Procs_Set.h \
 	p_Procs.h p_Procs_Static.h p_Mult_q.h
 
-DISTFILES=${SOURCES} ${HEADERS} ${ESOURCES} ${ECSOURCES} \
+DISTFILES=${SOURCES} ${HEADERS} ${ESOURCES} \
         Makefile.in \
 	mkinstalldirs \
 	prCopy.pl
 
 OBJS := $(CXXSOURCES:.cc=.o) $(CSOURCES:.c=.o) #$(CXXSOURCES2:.cpp=.o)
-OBJS2 := $(ESOURCES:.cc=.o) $(ECSOURCES:.c=.o)
+OBJS2 := $(ESOURCES:.cc=.o)
 OBJSG2 := $(ESOURCES:.cc=.og)
 OBJSP2 := $(ESOURCES:.cc=.op)
 
@@ -238,7 +236,7 @@ libkernel.a: ${OBJS}
 	-rm -f libkernel.a
 	ar cr $@ $^
 
-p_Procs_Lib.o: p_Procs_Dynamic.inc
+p_Procs_Lib.o: p_Procs_Lib.inc
 
 # Hmm compiling with -fomit-frame-pointer resulted in access violation
 # under cygwin
@@ -255,12 +253,12 @@ p_Procs_Dynamic.o p_Procs_Lib.o p_Procs_Dynamic.og p_Procs_Lib.og\
 p_Procs_Dynamic.inc p_Procs_Lib.inc: p_Procs_Dynamic.h
 
 # here is how p_Procs_[Static|Dynamic].inc is generated
-p_Procs_Static.inc: p_Procs_Generate.cc p_Procs_Impl.h
+p_Procs_Static.inc: p_Procs_Generate.cc p_Procs_Impl.h mod2.h
 	$(CXX) $(CPPFLAGS) -g -Dp_Procs_Static p_Procs_Generate.cc -o p_Procs_Static
 	./p_Procs_Static > p_Procs_Static.xx && mv p_Procs_Static.xx p_Procs_Static.inc
 	-rm -f p_Procs_Static p_Procs_Static.exe
 
-p_Procs_Dynamic.inc: p_Procs_Generate.cc p_Procs_Impl.h
+p_Procs_Dynamic.inc: p_Procs_Generate.cc p_Procs_Impl.h mod2.h
 	$(CXX) $(CPPFLAGS) -g -Dp_Procs_Dynamic p_Procs_Generate.cc -o p_Procs_Dynamic
 	./p_Procs_Dynamic > p_Procs_Dynamic.xx && mv p_Procs_Dynamic.xx p_Procs_Dynamic.inc
 	-rm -f p_Procs_Dynamic p_Procs_Dynamic.exe
@@ -274,9 +272,9 @@ p_Procs_%.so: p_Procs_Lib_%.dl_o
 install-nolns: install
 
 install-libsingular: install
-	${MKINSTALLDIRS} $(DESTDIR)${includedir}
-	${MKINSTALLDIRS} $(DESTDIR)${includedir}/singular
-	for file in *.h kInline.cc; do $(SED) -e "s:<kernel/:<singular/:"< $$file | $(SED) -e "s:<Singular/:<singular/:"|$(SED) -e "s:<omalloc/:<:"|$(SED) -e "s:<factory/:<:" > $(DESTDIR)${includedir}/singular/$$file; done
+	-${MKINSTALLDIRS} ${includedir}
+	-${MKINSTALLDIRS} ${includedir}/singular
+	-for file in *.h kInline.cc; do sed -e "s:<kernel/:<singular/:"< $$file | sed -e "s:<Singular/:<singular/:"|sed -e "s:<omalloc/:<:"|sed -e "s:<factory/:<:" > ${includedir}/singular/$$file; done
 
 install: all installbin
 
@@ -292,12 +290,12 @@ endif
 
 
 installbin: ${DL_LIBS} ${DL_LIBSG} libkernel.a libkernel_g.a
-	${MKINSTALLDIRS} $(DESTDIR)${bindir}
+	${MKINSTALLDIRS} ${bindir}
 	- ranlib libkernel.a
 	- ranlib libkernel_g.a
 ifeq (,${DL_LIBS})
 else
-	${INSTALL_PROGRAM} ${DL_LIBS} $(DESTDIR)${bindir}
+	-${INSTALL_PROGRAM} ${DL_LIBS} ${bindir}
 ifeq (,${DL_LIBSG})
 else
 	-for file in ${DL_LIBS} ${DL_LIBSG}; do ${INSTALL_PROGRAM} $$file ../Singular; done
@@ -309,7 +307,7 @@ install-bindist: ${DL_LIBS} libkernel.a
 	${MKINSTALLDIRS} ${bindir}
 ifeq (,${DL_LIBS})
 else
-	${INSTALL_PROGRAM} ${DL_LIBS} $(DESTDIR)${bindir}
+	-${INSTALL_PROGRAM} ${DL_LIBS} ${bindir}
 endif
 
 ##
@@ -340,8 +338,8 @@ maintainer-clean: distclean srcclean
 ## miscellanous targets
 ##
 
-TAGS:   ${SOURCES} ${ESOURCES} ${ECSOURCES} ${HEADERS} 
-	etags ${SOURCES} ${ESOURCES} ${ECSOURCES} ${HEADERS}
+TAGS:   ${SOURCES} ${ESOURCES} ${HEADERS} 
+	etags ${SOURCES} ${ESOURCES} ${HEADERS}
 
 tags:   
 	ctags *.c *.h *.cc *.inc
@@ -441,15 +439,15 @@ libkernel_p.a: ${OBJP} ${DL_LIBSP} ${OBJSP2}
 ## dependencies
 ##
 
-%.dd: %.cc
+%.dd: %.cc mod2.h 
 	echo $(@:.dd=.og) $(@:.dd=.op) $(@:.dd=.dl_o) $(@:.dd=.dl_og) $(@:.dd=.dl_op)" " \\ > $@
 	$(CXXM) -DGENTABLE ${CPPFLAGS} ${DEFSG} $< >> $@
 
-%.d: %.c
+%.d: %.c mod2.h 
 	echo $(@:.d=.og) $(@:.d=.op) " " \\ > $@
 	$(CCM) ${CPPFLAGS} ${DEFSG} $< >> $@
 
-depend:   $(CXXSOURCES:.cc=.dd) $(ESOURCES:.cc=.dd) $(ECSOURCES:.c=.d) $(CSOURCES:.c=.d)
+depend:   $(CXXSOURCES:.cc=.dd) $(ESOURCES:.cc=.dd) $(CSOURCES:.c=.d) mod2.h
 	cat *.d *.dd >depend
 
 ifeq (depend,$(wildcard depend))
diff --git a/kernel/Number.h b/kernel/Number.h
index 05f52b7..4428d15 100644
--- a/kernel/Number.h
+++ b/kernel/Number.h
@@ -1,7 +1,7 @@
 #ifndef NUMBERCPP_HEADER
 #define NUMBERCPP_HEADER
 #include <boost/intrusive_ptr.hpp>
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 #include <kernel/numbers.h>
 #include <kernel/febase.h>
 #include <kernel/ring.h>
diff --git a/kernel/Poly.h b/kernel/Poly.h
index ab70d30..d04b1cc 100644
--- a/kernel/Poly.h
+++ b/kernel/Poly.h
@@ -1,6 +1,6 @@
 #ifndef POLYCPP_HEADER
 #define POLYCPP_HEADER
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 #include <kernel/IIntvec.h>
 #include <kernel/numbers.h>
 #include <kernel/Number.h>
diff --git a/kernel/PowerSeries.h b/kernel/PowerSeries.h
index 7c3f764..809d0b5 100644
--- a/kernel/PowerSeries.h
+++ b/kernel/PowerSeries.h
@@ -1,6 +1,6 @@
 #ifndef POWER_SERIES_HEADER
 #define POWER_SERIES_HEADER
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 #include <kernel/Poly.h>
 template <class traits> class PowerSeriesInputIterator:
 public std::
diff --git a/kernel/clapconv.cc b/kernel/clapconv.cc
index 07f3c6f..b017e53 100644
--- a/kernel/clapconv.cc
+++ b/kernel/clapconv.cc
@@ -7,7 +7,7 @@
 */
 
 
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 #ifdef HAVE_FACTORY
 #include <omalloc/omalloc.h>
 #include <kernel/structs.h>
diff --git a/kernel/clapsing.cc b/kernel/clapsing.cc
index 0c327cf..606578b 100644
--- a/kernel/clapsing.cc
+++ b/kernel/clapsing.cc
@@ -7,7 +7,7 @@
 */
 
 //#define FACTORIZE2_DEBUG
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 #include <omalloc/omalloc.h>
 #ifdef HAVE_FACTORY
 #define SI_DONT_HAVE_GLOBAL_VARS
diff --git a/kernel/dError.c b/kernel/dError.c
index 6c229cb..5ea1d19 100644
--- a/kernel/dError.c
+++ b/kernel/dError.c
@@ -11,7 +11,7 @@
 #define DERROR_C
 #include <stdarg.h>
 #include <stdio.h>
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 #include <Singular/distrib.h>
 #ifdef HAVE_CONFIG_H
 #include <omalloc/omalloc.h>
diff --git a/kernel/digitech.cc b/kernel/digitech.cc
index 6039e43..25df89f 100644
--- a/kernel/digitech.cc
+++ b/kernel/digitech.cc
@@ -1,7 +1,7 @@
 /****************************************
 *  Computer Algebra System SINGULAR     *
 ****************************************/
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 #include <kernel/ring.h>
 
 #include <kernel/digitech.h>
diff --git a/kernel/digitech.h b/kernel/digitech.h
index a1ceb37..b8d0fd3 100644
--- a/kernel/digitech.h
+++ b/kernel/digitech.h
@@ -1,6 +1,6 @@
 #ifndef DIGITECH_HEADER
 #define DIGITECH_HEADER
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 #include <kernel/polys.h>
 void bit_reduce(poly & f,ring r);
 poly uni_subst_bits(poly outer_uni, poly inner_multi, ring r);
diff --git a/kernel/eigenval.cc b/kernel/eigenval.cc
index d2ce108..a0934a3 100644
--- a/kernel/eigenval.cc
+++ b/kernel/eigenval.cc
@@ -5,7 +5,7 @@
 * ABSTRACT: eigenvalues of constant square matrices
 */
 
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 
 #ifdef HAVE_EIGENVAL
 
diff --git a/kernel/f5c.cc b/kernel/f5c.cc
index caebac9..c1e3b33 100644
--- a/kernel/f5c.cc
+++ b/kernel/f5c.cc
@@ -1,4 +1,4 @@
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 #ifdef HAVE_F5C
 #include <unistd.h>
 #include <kernel/structs.h>
diff --git a/kernel/f5data.cc b/kernel/f5data.cc
index d606a4e..d872f61 100644
--- a/kernel/f5data.cc
+++ b/kernel/f5data.cc
@@ -5,7 +5,7 @@
 /*
 * ABSTRACT: lpolynomial definition 
 */
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 
 #ifdef HAVE_F5
 #include <kernel/kutil.h>
diff --git a/kernel/f5gb.cc b/kernel/f5gb.cc
index 72b20d0..d308517 100644
--- a/kernel/f5gb.cc
+++ b/kernel/f5gb.cc
@@ -5,7 +5,7 @@
 * ABSTRACT: f5gb interface
 */
 
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 #ifdef HAVE_F5
 #include <unistd.h>
 #include <omp.h>
diff --git a/kernel/f5lists.cc b/kernel/f5lists.cc
index 4546a17..ae0bcab 100644
--- a/kernel/f5lists.cc
+++ b/kernel/f5lists.cc
@@ -1,4 +1,4 @@
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 
 #ifdef HAVE_F5
 #include <kernel/kutil.h>
diff --git a/kernel/fast_maps.cc b/kernel/fast_maps.cc
index c38fd20..619c4fd 100644
--- a/kernel/fast_maps.cc
+++ b/kernel/fast_maps.cc
@@ -7,7 +7,7 @@
  *  Author:  obachman (Olaf Bachmann)
  *  Created: 02/01
  *******************************************************************/
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 #include <omalloc/omalloc.h>
 #include <kernel/options.h>
 #include <kernel/p_polys.h>
diff --git a/kernel/fast_mult.cc b/kernel/fast_mult.cc
index ae42b3b..120a29a 100644
--- a/kernel/fast_mult.cc
+++ b/kernel/fast_mult.cc
@@ -1,7 +1,7 @@
 /****************************************
 *  Computer Algebra System SINGULAR     *
 ****************************************/
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 #include <kernel/ring.h>
 #include <kernel/fast_mult.h>
 #include <kernel/kbuckets.h>
diff --git a/kernel/fast_mult.h b/kernel/fast_mult.h
index 41e97e4..43a4344 100644
--- a/kernel/fast_mult.h
+++ b/kernel/fast_mult.h
@@ -1,6 +1,6 @@
 #ifndef fast_mult_header
 #define fast_mult_header
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 #include <kernel/polys.h>
 poly unifastmult(poly f,poly g, ring r);
 poly multifastmult(poly f, poly g, ring r);
diff --git a/kernel/feResource.cc b/kernel/feResource.cc
index 950929a..30ace22 100644
--- a/kernel/feResource.cc
+++ b/kernel/feResource.cc
@@ -9,7 +9,7 @@
 #include <unistd.h>
 #include <string.h>
 
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 #ifdef AIX_4
 #define HAVE_PUTENV 1
 #endif
@@ -75,11 +75,13 @@ static feResourceConfig_s feResourceConfigs[] =
    "%b/LIB;"
    "%b/MOD;"
    "%r/LIB;"
+   "%r/../LIB;"
    "%d/LIB;"
+   "%d/../LIB"
    ""},
-  {"Singular",  'S',    feResBinary,"SINGULAR_EXECUTABLE",  "%b/Singular",(char *)S_ROOT_DIR "/Singular"},
-  {"BinDir",    'b',    feResDir,   "SINGULAR_BIN_DIR",     "%r",               (char *)""},
-  {"RootDir",   'r',    feResDir,   "SINGULAR_ROOT_DIR",     S_ROOT_DIR,  (char *)""},
+  {"Singular",  'S',    feResBinary,"SINGULAR_EXECUTABLE",  "%d/"S_UNAME"/Singular",(char *)""},
+  {"BinDir",    'b',    feResDir,   "SINGULAR_BIN_DIR",     "%d/"S_UNAME,           (char *)""},
+  {"RootDir",   'r',    feResDir,   "SINGULAR_ROOT_DIR",    "%b/..",                (char *)""},
   {"DefaultDir",'d',    feResDir,   "SINGULAR_DEFAULT_DIR",  SINGULAR_DEFAULT_DIR,  (char *)""},
   {"InfoFile",  'i',    feResFile,  "SINGULAR_INFO_FILE",   "%r/info/singular.hlp", (char *)""},
   {"IdxFile",   'x',    feResFile,  "SINGULAR_IDX_FILE",    "%r/doc/singular.idx",  (char *)""},
@@ -92,8 +94,8 @@ static feResourceConfig_s feResourceConfigs[] =
   {"Path",      'p',    feResPath,  NULL,                   "%b;$PATH",             (char *)""},
 
 #ifdef ESINGULAR
-  {"emacs",     'E',    feResBinary,"ESINGULAR_EMACS",      "/usr/bin/emacs",       (char *)""},
-  {"xemacs",    'A',    feResBinary,"ESINGULAR_EMACS",      "/usr/bin/xemacs",      (char *)""},
+  {"emacs",     'E',    feResBinary,"ESINGULAR_EMACS",      "%b/emacs",             (char *)""},
+  {"xemacs",    'A',    feResBinary,"ESINGULAR_EMACS",      "%b/xemacs",            (char *)""},
   {"SingularEmacs",'M', feResBinary,"ESINGULAR_SINGULAR",   "%b/Singular",          (char *)""},
   {"EmacsLoad", 'l',    feResFile,  "ESINGULAR_EMACS_LOAD", "%e/.emacs-singular",   (char *)""},
   {"EmacsDir",  'e',    feResDir,   "ESINGULAR_EMACS_DIR",  "%r/emacs",             (char *)""},
@@ -102,7 +104,7 @@ static feResourceConfig_s feResourceConfigs[] =
 #ifdef ix86_Win
   {"rxvt",      'X',    feResBinary,"RXVT",                 "%b/rxvt",              (char *)""},
 #else
-  {"xterm",     'X',    feResBinary,"XTERM",                "/usr/bin/x-terminal-emulator",             (char *)""},
+  {"xterm",     'X',    feResBinary,"XTERM",                "%b/xterm",             (char *)""},
 #endif
 #else
   {"EmacsDir",  'e',    feResDir,   "SINGULAR_EMACS_DIR",   "%r/emacs",             (char *)""},
diff --git a/kernel/febase.cc b/kernel/febase.cc
index 971f7fd..865c9d7 100644
--- a/kernel/febase.cc
+++ b/kernel/febase.cc
@@ -7,7 +7,7 @@
 
 /* I need myfread in standalone_parser */
 #ifndef STANDALONE_PARSER
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 
 #include <stdlib.h>
 #include <stdio.h>
@@ -26,47 +26,6 @@
 #include <kernel/dError.h>
 #include <kernel/options.h>
 
-/* some stuff move here from feread.cc: */
-
-/* ===================================================================*/
-/* =                      batch mode                                = */
-/* ===================================================================*/
-/* dummy (for batch mode): */
-char * fe_fgets_dummy(const char *pr,char *s, int size)
-{
-  return NULL;
-}
-
-/* ===================================================================*/
-/* =                        fgets                                   = */
-/* ===================================================================*/
-char * fe_fgets(const char *pr,char *s, int size)
-{
-  if (BVERBOSE(V_PROMPT))
-  {
-    fprintf(stdout,"%s",pr);
-  }
-  mflush();
-  return fgets(s,size,stdin);
-}
-
-char * fe_fgets_stdin_init(const char *pr,char *s, int size) __attribute__((weak));
-char * fe_fgets_stdin_init(const char *pr,char *s, int size) {
-	Werror("No method to read from stdin loaded!\n");
-	return NULL;
-}
-extern "C" {
-void fe_reset_input_mode (void) __attribute__((weak));
-void fe_reset_input_mode (void)
-{
-}
-}
-
-char * (*fe_fgets_stdin)(const char *pr,char *s, int size)
- = fe_fgets_stdin_init;
-
-/* end of some stuff move here from feread.cc */
-
 #define fePutChar(c) fputc((unsigned char)(c),stdout)
 /*0 implementation */
 
diff --git a/kernel/fegetopt.c b/kernel/fegetopt.c
index 3cf3db8..47fd931 100644
--- a/kernel/fegetopt.c
+++ b/kernel/fegetopt.c
@@ -31,7 +31,7 @@
 */
 
 
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 
 #ifndef __STDC__
 #  ifndef const
diff --git a/kernel/feread.cc b/kernel/feread.cc
index 522ed9c..d861fc6 100644
--- a/kernel/feread.cc
+++ b/kernel/feread.cc
@@ -5,7 +5,7 @@
 * ABSTRACT: input from ttys, simulating fgets
 */
 
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 
 // ----------------------------------------
 // system settings:
@@ -30,6 +30,10 @@
 #include <unistd.h>
 #endif
 
+static char * fe_fgets_stdin_init(const char *pr,char *s, int size);
+char * (*fe_fgets_stdin)(const char *pr,char *s, int size)
+ = fe_fgets_stdin_init;
+
 extern char *iiArithGetCmd(int);
 
 /* ===================================================================*/
@@ -285,11 +289,23 @@ char * fe_fgets_stdin_drl(const char *pr,char *s, int size)
 }
 #endif
 
+/* ===================================================================*/
+/* =                        fgets                                   = */
+/* ===================================================================*/
+char * fe_fgets(const char *pr,char *s, int size)
+{
+  if (BVERBOSE(V_PROMPT))
+  {
+    fprintf(stdout,"%s",pr);
+  }
+  mflush();
+  return fgets(s,size,stdin);
+}
 
 /* ===================================================================*/
 /* =       init for static rl, dyn. rl, emu. rl                     = */
 /* ===================================================================*/
-char * fe_fgets_stdin_init(const char *pr,char *s, int size)
+static char * fe_fgets_stdin_init(const char *pr,char *s, int size)
 {
 #if (defined(HAVE_READLINE) || defined(HAVE_LIBREADLINE)) && !defined(HAVE_DYN_RL) && !defined(HAVE_FEREAD)
   /* Allow conditional parsing of the ~/.inputrc file. */
@@ -377,3 +393,12 @@ char * fe_fgets_stdin_init(const char *pr,char *s, int size)
 #endif
 }
 
+/* ===================================================================*/
+/* =                      batch mode                                = */
+/* ===================================================================*/
+/* dummy (for batch mode): */
+char * fe_fgets_dummy(const char *pr,char *s, int size)
+{
+  return NULL;
+}
+
diff --git a/kernel/fereadl.c b/kernel/fereadl.c
index 1c495be..d2f6c1c 100644
--- a/kernel/fereadl.c
+++ b/kernel/fereadl.c
@@ -6,7 +6,7 @@
 */
 
 
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 #include <kernel/febase.h>
 #include <omalloc/omalloc.h>
 #include <kernel/structs.h>
diff --git a/kernel/ffields.cc b/kernel/ffields.cc
index 255e590..be5aeb7 100644
--- a/kernel/ffields.cc
+++ b/kernel/ffields.cc
@@ -6,7 +6,7 @@
 */
 
 #include <string.h>
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 #include <omalloc/mylimits.h>
 #include <kernel/febase.h>
 #include <omalloc/omalloc.h>
diff --git a/kernel/fglmcomb.cc b/kernel/fglmcomb.cc
index 4c11eab..d8b42a2 100644
--- a/kernel/fglmcomb.cc
+++ b/kernel/fglmcomb.cc
@@ -7,7 +7,7 @@
 * ABSTRACT -
 */
 
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 
 #ifdef HAVE_FACTORY
 #include <kernel/options.h>
diff --git a/kernel/fglmgauss.cc b/kernel/fglmgauss.cc
index b64613a..933e26c 100644
--- a/kernel/fglmgauss.cc
+++ b/kernel/fglmgauss.cc
@@ -8,7 +8,7 @@
 *  to find linear dependecies of fglmVectors.
 */
 
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 
 #ifdef  HAVE_FACTORY
 #include <kernel/structs.h>
diff --git a/kernel/fglmhom.cc b/kernel/fglmhom.cc
index 4636bea..16ead96 100644
--- a/kernel/fglmhom.cc
+++ b/kernel/fglmhom.cc
@@ -9,7 +9,7 @@
 */
 
 
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 #if 0
 #include <factoryconf.h>
 #ifndef NOSTREAMIO
diff --git a/kernel/fglmvec.cc b/kernel/fglmvec.cc
index 75abda1..a0a4300 100644
--- a/kernel/fglmvec.cc
+++ b/kernel/fglmvec.cc
@@ -11,7 +11,7 @@
 *   specialized for this purpose.
 */
 
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 
 #ifdef HAVE_FACTORY
 #include <omalloc/omalloc.h>
diff --git a/kernel/fglmzero.cc b/kernel/fglmzero.cc
index 4cac366..5224374 100644
--- a/kernel/fglmzero.cc
+++ b/kernel/fglmzero.cc
@@ -17,7 +17,7 @@
  * o FindUnivariatePolys added
  */
 
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 
 #ifdef HAVE_FACTORY
 #include <kernel/options.h>
diff --git a/kernel/gfan.cc b/kernel/gfan.cc
deleted file mode 100644
index 55c9431..0000000
--- a/kernel/gfan.cc
+++ /dev/null
@@ -1,4512 +0,0 @@
-/*
-Compute the Groebner fan of an ideal
-$Author: monerjan $
-$Date: 2009/11/03 06:57:32 $
-$Header: /usr/local/Singular/cvsroot/kernel/gfan.cc,v 1.103 2009/11/03 06:57:32 monerjan Exp $
-$Id: gfan.cc 14493 2012-01-16 11:00:07Z motsak $
-*/
-
-#include <Singular/mod2.h>
-
-#ifdef HAVE_FANS
-#include <kernel/options.h>
-#include <kernel/kstd1.h>
-#include <kernel/kutil.h>
-#include <kernel/polys.h>
-#include <kernel/ideals.h>
-#include <kernel/kmatrix.h>
-#include <kernel/GMPrat.h>
-
-#include "ring.h"	//apparently not needed
-#include <Singular/lists.h>
-#include <kernel/prCopy.h>
-#include <kernel/stairc.h>
-#include <fstream>	//read-write cones to files
-#include <string>
-#include <sstream>
-#include <stdlib.h>
-#include <assert.h>
-#include <gfanlib/gfanlib.h>
-
-/*DO NOT REMOVE THIS*/
-#ifndef GMPRATIONAL
-#define GMPRATIONAL
-#endif
-
-#include <setoper.h>
-#include <cdd.h>
-#include <cddmp.h>
-
-#ifndef gfan_DEBUG
-// #define gfan_DEBUG
-#ifndef gfan_DEBUGLEVEL
-#define gfan_DEBUGLEVEL 1
-#endif
-#endif
-
-//NOTE Defining this will slow things down!
-//Only good for very coarse profiling
-// #define gfanp
-#ifdef gfanp
-  #include <sys/time.h>
-  #include <iostream>
-#endif
-
-//NOTE DO NOT REMOVE THIS
-#ifndef SHALLOW
-  #define SHALLOW
-#endif
-
-#ifndef USE_ZFAN
-  #define USE_ZFAN
-#endif
-
-#include <gfan.h>
-using namespace std;
-
-#define ivIsStrictlyPositive iv64isStrictlyPositive
-
-/**
-*\brief Class facet
-*	Implements the facet structure as a linked list
-*
-*/
-		
-/** \brief The default constructor for facets
-*/
-facet::facet()			
-{
-	// Pointer to next facet.  */
-	/* Defaults to NULL. This way there is no need to check explicitly */
-	this->fNormal=NULL;
-	this->interiorPoint=NULL;		
-	this->UCN=0;
-	this->codim2Ptr=NULL;
-	this->codim=1;		//default for (codim-1)-facets
-	this->numCodim2Facets=0;
-	this->numRays=0;
-	this->flipGB=NULL;
-	this->next=NULL;
-	this->prev=NULL;		
-	this->flipRing=NULL;	//the ring on the other side
-	this->isFlippable=FALSE;
-}
-		
-/** \brief Constructor for facets of codim == 2
-* Note that as of now the code of the constructors is only for facets and codim2-faces. One
-* could easily change that by renaming numCodim2Facets to numCodimNminusOneFacets or similar
-*/
-facet::facet(const int &n)
-{
-	this->fNormal=NULL;
-	this->interiorPoint=NULL;			
-	this->UCN=0;
-	this->codim2Ptr=NULL;
-	if(n==2)
-	{
-		this->codim=n;
-	}//NOTE Handle exception here!			
-	this->numCodim2Facets=0;
-	this->numRays=0;
-	this->flipGB=NULL;
-	this->next=NULL;
-	this->prev=NULL;
-	this->flipRing=NULL;
-	this->isFlippable=FALSE;
-}
-		
-/** \brief The copy constructor
-* By default only copies the fNormal, f2Normals and UCN
-*/
-facet::facet(const facet& f)
-{
-	this->fNormal=iv64Copy(f.fNormal);
-	this->UCN=f.UCN;
-	this->isFlippable=f.isFlippable;
-	//Needed for flip2
-	//NOTE ONLY REFERENCE
-	this->interiorPoint=iv64Copy(f.interiorPoint);//only referencing is prolly not the best thing to do in a copy constructor
-	facet* f2Copy;
-	f2Copy=f.codim2Ptr;
-	facet* f2Act;
-	f2Act=this->codim2Ptr;
-	while(f2Copy!=NULL)
-	{
-		if(f2Act==NULL
-#ifndef NDEBUG
-  #if SIZEOF_LONG==8
-				 || f2Act==(facet*)0xfefefefefefefefe
-  #elif SIZEOF_LONG==4
-				 || f2Act==(facet*)0xfefefefe
-  #endif
-#endif
-		  )
-		{
-			f2Act=new facet(2);
-			this->codim2Ptr=f2Act;			
-		}
-		else
-		{
-			facet* marker;
-			marker = f2Act;
-			f2Act->next = new facet(2);
-			f2Act = f2Act->next;
-			f2Act->prev = marker;
-		}
-		int64vec *f2Normal;
-		f2Normal = f2Copy->getFacetNormal();
-// 		f2Act->setFacetNormal(f2Copy->getFacetNormal());
-		f2Act->setFacetNormal(f2Normal);
-		delete f2Normal;
-		f2Act->setUCN(f2Copy->getUCN());
-		f2Copy = f2Copy->next;
-	}	
-}
-
-/** \brief Shallow copy constructor for facets
-* We only need the interior point for equality testing
-*/
-facet* facet::shallowCopy(const facet& f)
-{
-	facet *res = new facet();
-	res->fNormal=(int64vec * const)f.fNormal;
-	res->UCN=f.UCN;
-	res->isFlippable=f.isFlippable;
-	res->interiorPoint=(int64vec * const)f.interiorPoint;
-	res->codim2Ptr=(facet * const)f.codim2Ptr;
-	res->prev=NULL;
-	res->next=NULL;
-	res->flipGB=NULL;
-	res->flipRing=NULL;
-	return res;
-}
-
-void facet::shallowDelete()
-{
-#ifndef NDEBUG
-// 	printf("shallowdel at UCN %i\n", this->getUCN());
-#endif
-	this->fNormal=NULL;
-// 	this->UCN=0;
-	this->interiorPoint=NULL;
-	this->codim2Ptr=NULL;
-	this->prev=NULL;
-	this->next=NULL;
-	this->flipGB=NULL;
-	this->flipRing=NULL;
-	assert(this->fNormal==NULL);	
-// 	delete(this);
-}
-		
-/** The default destructor */
-facet::~facet()
-{
-#ifndef NDEBUG
-// 	printf("~facet at UCN %i\n",this->getUCN());
-#endif
-	if(this->fNormal!=NULL)
-		delete this->fNormal;
-	if(this->interiorPoint!=NULL)
-		delete this->interiorPoint;
-	/* Cleanup the codim2-structure */
-// 	if(this->codim==2)
-// 	{
-// 		facet *codim2Ptr;
-// 		codim2Ptr = this->codim2Ptr;
-// 		while(codim2Ptr!=NULL)
-// 		{
-// 			if(codim2Ptr->fNormal!=NULL)
-// 			{
-// 				delete codim2Ptr->fNormal;//NOTE Do not want this anymore since the rays are now in gcone!
-// 				codim2Ptr = codim2Ptr->next;
-// 			}
-// 		}
-// 	}
-	//The rays are stored in the cone!
-	if(this->flipGB!=NULL)
-		idDelete((ideal *)&this->flipGB);
-// 	if(this->flipRing!=NULL && this->flipRing->idroot!=(idhdl)0xfbfbfbfbfbfbfbfb)
-// 		rDelete(this->flipRing); //See vol II/134
-// 	this->flipRing=NULL;
-	this->prev=NULL;
-	this->next=NULL;
-}
-		
-inline const int64vec *facet::getRef2FacetNormal() const
-{
-	return(this->fNormal);
-}	
-
-/** Equality check for facets based on unique interior points*/
-static bool areEqual2(facet* f, facet *g)
-{
-#ifdef gfanp
-	gcone::numberOfFacetChecks++;
-	timeval start, end;
-	gettimeofday(&start, 0);
-#endif
-	bool res = TRUE;
-	const int64vec *fIntP = f->getRef2InteriorPoint();
-	const int64vec *gIntP = g->getRef2InteriorPoint();
-	for(int ii=0;ii<pVariables;ii++)
-	{
-		if( (*fIntP)[ii] != (*gIntP)[ii] )
-		{
-			res=FALSE;
-			break;
-		}
-	}
-// 	if( fIntP->compare(gIntP)!=0) res=FALSE;
-#ifdef gfanp
-	gettimeofday(&end, 0);
-	gcone::t_areEqual += (end.tv_sec - start.tv_sec + 1e-6*(end.tv_usec - start.tv_usec));
-#endif	
-	return res;
-}
-
-/** \brief Comparison of facets
- * called from enqueueNewFacets
-* The facet normals are primitve vectors since we call gcone::normalize() on all cones.
-* Hence it should suffice to check whether facet normal f equals minus facet normal s.
-* If so we check the extremal rays
-*
-* BEWARE: It would be better to use const int64vec* but that will lead to call something like
-* int foo=((int64vec*)f2Normal)->compare((int64vec*)s2Normal) resulting in much higher memory usage
-*/
-static bool areEqual(facet *f, facet *s)
-{
-#ifdef gfanp
-	gcone::numberOfFacetChecks++;
-	timeval start, end;
-	gettimeofday(&start, 0);
-#endif
-	bool res = TRUE;
-	int notParallelCtr=0;
-	int ctr=0;
-	const int64vec* fNormal; //No new since iv64Copy and therefore getFacetNormal return a new
-	const int64vec* sNormal;
-	fNormal = f->getRef2FacetNormal();
-	sNormal = s->getRef2FacetNormal();
-#include "intvec.h"
-	//Do not need parallelity. Too time consuming
-//  	if(!isParallel(*fNormal,*sNormal))
-// 	if(fNormal->compare(ivNeg(sNormal))!=0)//This results in a Mandelbug
- // 		notParallelCtr++;
-// 	else//parallelity, so we check the codim2-facets
-	int64vec *fNRef=const_cast<int64vec*>(fNormal);
-	int64vec *sNRef=const_cast<int64vec*>(sNormal);
-	if(isParallel(*fNRef,*sNRef))
-// 	if(fNormal->compare((sNormal))!=0)//Behold! Teh definitive Mandelbug
-	{
-		facet* f2Act;
-		facet* s2Act;
-		f2Act = f->codim2Ptr;		
-		ctr=0;
-		while(f2Act!=NULL)
-		{
-			const int64vec* f2Normal;
-			f2Normal = f2Act->getRef2FacetNormal();
-// 			int64vec *f2Ref=const_cast<int64vec*>(f2Normal);
-			s2Act = s->codim2Ptr;
-			while(s2Act!=NULL)
-			{
-				const int64vec* s2Normal;
-				s2Normal = s2Act->getRef2FacetNormal();
-// 				bool foo=areEqual(f2Normal,s2Normal);
-// 				int64vec *s2Ref=const_cast<int64vec*>(s2Normal);
-				int foo=f2Normal->compare(s2Normal);
-				if(foo==0)
-					ctr++;
-				s2Act = s2Act->next;
-			}
-			f2Act = f2Act->next;
-		}		
-	}
-	if(ctr==f->numCodim2Facets)
-		res=TRUE;
-	else
-	{
-#ifdef gfanp
-		gcone::parallelButNotEqual++;
-#endif
-		res=FALSE;
-	}
-#ifdef gfanp
-	gettimeofday(&end, 0);
-	gcone::t_areEqual += (end.tv_sec - start.tv_sec + 1e-6*(end.tv_usec - start.tv_usec));
-#endif
-	return res;
-}	
-		
-/** Stores the facet normal \param int64vec*/
-inline void facet::setFacetNormal(int64vec *iv)
-{
-	if(this->fNormal!=NULL)
-		delete this->fNormal;
-	this->fNormal = iv64Copy(iv);			
-}
-		
-/** Hopefully returns the facet normal 
-* Mind: iv64Copy returns a new int64vec, so use this in the following way:
-* int64vec *iv;
-* iv = this->getFacetNormal();
-* [...]
-* delete(iv);
-*/
-inline int64vec *facet::getFacetNormal() const
-{				
-	return iv64Copy(this->fNormal);
-}
-
-/** Method to print the facet normal*/
-inline void facet::printNormal() const
-{
-	fNormal->show();
-}
-		
-/** Store the flipped GB*/
-inline void facet::setFlipGB(ideal I)
-{
-	this->flipGB=idCopy(I);
-}
-		
-/** Returns a pointer to the flipped GB
-Seems not be used
-Anyhow idCopy would make sense here.
-*/
-inline ideal facet::getFlipGB()
-{
-	return this->flipGB;
-}
-		
-/** Print the flipped GB*/
-inline void facet::printFlipGB()
-{
-#ifndef NDEBUG
-	idShow(this->flipGB);
-#endif
-}
-		
-/** Set the UCN */
-inline void facet::setUCN(int n)
-{
-	this->UCN=n;
-}
-		
-/** \brief Get the UCN 
-* Returns the UCN iff this != NULL, else -1
-*/
-inline int facet::getUCN()
-{
-#ifndef NDEBUG
-  #if SIZEOF_LONG==8
-	if((this!=NULL && this!=(facet * const)0xfbfbfbfbfbfbfbfb))
-  #elif SIZEOF_LONG==4
-	if((this!=NULL && this!=(facet * const)0xfbfbfbfb))
-  #endif
-#endif
-#ifdef NDEBUG
-	if(this!=NULL)
-#endif			
-		return this->UCN;
-	else
-		return -1;
-}
-		
-/** Store an interior point of the facet */
-inline void facet::setInteriorPoint(int64vec *iv)
-{
-	if(this->interiorPoint!=NULL)
-		delete this->interiorPoint;
-	this->interiorPoint = iv64Copy(iv);
-}
-		
-/** Returns a pointer to this->interiorPoint
-* MIND: iv64Copy returns a new int64vec
-* @see facet::getFacetNormal
-*/
-inline int64vec *facet::getInteriorPoint()
-{
-	return iv64Copy(this->interiorPoint);
-}
-
-inline const int64vec *facet::getRef2InteriorPoint()
-{
-	return (this->interiorPoint);
-}
-		
-/** \brief Debugging function
-* prints the facet normal an all (codim-2)-facets that belong to it
-*/
-volatile void facet::fDebugPrint()
-{
-  #ifndef NDEBUG
-	facet *codim2Act;			
-	codim2Act = this->codim2Ptr;
-	int64vec *fNormal;
-	fNormal = this->getFacetNormal();	
-	printf("=======================\n");
-	printf("Facet normal = (");fNormal->show(1,1);printf(")\n");
-	printf("-----------------------\n");
-	printf("Codim2 facets:\n");
-	while(codim2Act!=NULL)
-	{
-		int64vec *f2Normal;
-		f2Normal = codim2Act->getFacetNormal();
-		printf("(");f2Normal->show(1,0);printf(")\n");
-		codim2Act = codim2Act->next;
-		delete f2Normal;
-	}
-	printf("=======================\n");
- 	delete fNormal;
-  #endif
-}
-
-
-/**
-*\brief Implements the cone structure
-*
-* A cone is represented by a linked list of facet normals
-* @see facet
-*/
-
-
-/** \brief Default constructor. 
- *
- * Initialises this->next=NULL and this->facetPtr=NULL
- */
-gcone::gcone()
-{
-	this->next=NULL;
-	this->prev=NULL;
-	this->facetPtr=NULL;	//maybe this->facetPtr = new facet();			
-	this->baseRing=currRing;
-	this->counter++;
-	this->UCN=this->counter;			
-	this->numFacets=0;
-	this->ivIntPt=NULL;
-	this->gcRays=NULL;
-}
-		
-/** \brief Constructor with ring and ideal
- *
- * This constructor takes the root ring and the root ideal as parameters and stores 
- * them in the private members gcone::rootRing and gcone::inputIdeal
- * This constructor is only called once in the computation of the Gröbner fan,
- * namely for the very first cone. Therefore pred is set to 1.
- * Might set it to this->UCN though...
- * Since knowledge of the root ring is only needed when using reverse search,
- * this constructor is not needed when using the "second" method
-*/
-gcone::gcone(ring r, ideal I)
-{
-	this->next=NULL;
-	this->prev=NULL;
-	this->facetPtr=NULL;			
-	this->inputIdeal=I;
-	this->baseRing=currRing;
-	this->counter++;
-	this->UCN=this->counter;
-	this->pred=1;
-	this->numFacets=0;
-	this->ivIntPt=NULL;
-	this->gcRays=NULL;
-}
-		
-/** \brief Copy constructor 
- *
- * Copies a cone, sets this->gcBasis to the flipped GB
- * Call this only after a successful call to gcone::flip which sets facet::flipGB
-*/		
-gcone::gcone(const gcone& gc, const facet &f)
-{
-	this->next=NULL;
-// 	this->prev=(gcone *)&gc; //comment in to get a tree
-	this->prev=NULL;
-	this->numVars=gc.numVars;
-	this->counter++;
-	this->UCN=this->counter;
-	this->pred=gc.UCN;
-	this->facetPtr=NULL;
-   	this->gcBasis=idrCopyR(f.flipGB, f.flipRing);
-//  	this->inputIdeal=idCopy(this->gcBasis);
-	this->baseRing=rCopy(f.flipRing);
-	this->numFacets=0;
-	this->ivIntPt=NULL;
-	this->gcRays=NULL;
-}
-		
-/** \brief Default destructor 
-*/
-gcone::~gcone()
-{
-#ifndef NDEBUG
-  #if SIZEOF_LONG==8
-	if( ( this->gcBasis!=(ideal)(0xfbfbfbfbfbfbfbfb) ) && (this->gcBasis!=NULL) )
-		idDelete((ideal*)&this->gcBasis);
-  #elif SIZEOF_LONG!=8
-	if(this->gcBasis!=(ideal)0xfbfbfbfb)
-		idDelete((ideal *)&this->gcBasis);
-  #endif
-#else
-	if(this->gcBasis!=NULL)
-		idDelete((ideal *)&this->gcBasis);
-#endif
-// 	idDelete((ideal *)&this->gcBasis);
-// 	if(this->inputIdeal!=NULL)
-// 		idDelete((ideal *)&this->inputIdeal);
-// 	if (this->rootRing!=NULL && this->rootRing!=(ip_sring *)0xfefefefefefefefe)
-// 		rDelete(this->rootRing);
-	if(this->UCN!=1 && this->baseRing!=NULL)
-		rDelete(this->baseRing);
-	facet *fAct;
-	facet *fDel;
-	/*Delete the facet structure*/
-	fAct=this->facetPtr;
-	fDel=fAct;
-	while(fAct!=NULL)
-	{
-		fDel=fAct;
-		fAct=fAct->next;
-		delete fDel;
-	}
-	this->counter--;
-	//should be deleted in noRevS
-// 	dd_FreeMatrix(this->ddFacets);
-	//dd_FreeMatrix(this->ddFacets);
-	for(int ii=0;ii<this->numRays;ii++)
-		delete(gcRays[ii]);
-	omFree(gcRays);
-}			
-
-/** Returns the number of cones existing at the time*/
-inline int gcone::getCounter()
-{
-	return this->counter;
-}
-	
-/** \brief Set the interior point of a cone */
-inline void gcone::setIntPoint(int64vec *iv)
-{
-	if(this->ivIntPt!=NULL)
-		delete this->ivIntPt;
-	this->ivIntPt=iv64Copy(iv);
-}
-		
-/** \brief Returns either a physical copy the interior point of a cone or just a reference to it.*/
-inline int64vec *gcone::getIntPoint(bool shallow)
-{
-	if(shallow==TRUE)
-		return this->ivIntPt;
-	else
-		return iv64Copy(this->ivIntPt);
-}
-		
-/** \brief Print the interior point */
-inline void gcone::showIntPoint()
-{
-	ivIntPt->show();
-}
-		
-/** \brief Print facets
- * This is mainly for debugging purposes. Usually called from within gdb
- */
-volatile void gcone::showFacets(const short codim)
-{
-  #ifndef NDEBUG
-	facet *f=this->facetPtr;
-	facet *f2=NULL;
-	if(codim==2)
-		f2=this->facetPtr->codim2Ptr;
-	while(f!=NULL)
-	{
-		int64vec *iv;
-		iv = f->getFacetNormal();
-		printf("(");iv->show(1,0);
-		if(f->isFlippable==FALSE)
-			printf(")* ");
-		else
-			printf(") ");
-		delete iv;
-		if(codim==2)
-		{
-			f2=f->codim2Ptr;
-			while(f2!=NULL)
-			{
-				printf("[");f2->getFacetNormal()->show(1,0);printf("]");
-				f2 = f2->next;
-			}
-			printf("\n");
-		}
-		f=f->next;
-	}
-	printf("\n");
-  #endif
-}
-		
-/** For debugging purposes only */
-static volatile void showSLA(facet &f)
-{
-  #ifndef NDEBUG
-	facet *fAct;
-	fAct = &f;
-	if(fAct!=NULL)
-	{
-		facet *codim2Act;
-		codim2Act = fAct->codim2Ptr;
-		
-		printf("\n");
-		while(fAct!=NULL)
-		{
-			int64vec *fNormal;		
-			fNormal=fAct->getFacetNormal();
-			printf("(");fNormal->show(1,0);
-			if(fAct->isFlippable==TRUE)
-				printf(") ");
-			else
-				printf(")* ");
-			delete fNormal;
-			codim2Act = fAct->codim2Ptr;
-			printf(" Codim2: ");
-			while(codim2Act!=NULL)
-			{
-				int64vec *f2Normal;
-				f2Normal = codim2Act->getFacetNormal();
-				printf("(");f2Normal->show(1,0);printf(") ");
-				delete f2Normal;
-				codim2Act = codim2Act->next;
-			}
-			printf("UCN = %i\n",fAct->getUCN());
-			fAct = fAct->next;
-		}
-	}
-  #endif
-}
-		
-static void idDebugPrint(const ideal &I)
-{
-  #ifndef NDEBUG
-	int numElts=IDELEMS(I);
-	printf("Ideal with %i generators\n", numElts);
-	printf("Leading terms: ");
-	for (int ii=0;ii<numElts;ii++)
-	{
-		pWrite0(pHead(I->m[ii]));
-		printf(",");
-	}
-	printf("\n");
-  #endif
-}
-
-static void invPrint(const ideal &I)
-{
-// 	int numElts=IDELEMS(I);
-// 	cout << "inv = ";
-// 	for(int ii=0;ii<numElts;ii++);
-// 	{
-// 		pWrite0(pHead(I->m[ii]));
-// 		cout << ",";
-// 	}
-// 	cout << endl;
-}
-
-static bool isMonomial(const ideal &I)
-{
-	bool res = TRUE;
-	for(int ii=0;ii<IDELEMS(I);ii++)
-	{
-		if(pLength((poly)I->m[ii])>1)
-		{
-			res = FALSE;
-			break;
-		}
-	}
-	return res;
-}
-		
-/** \brief Set gcone::numFacets */
-inline void gcone::setNumFacets()
-{
-}
-		
-/** \brief Get gcone::numFacets */
-inline int gcone::getNumFacets()
-{
-	return this->numFacets;
-}
-		
-inline int gcone::getUCN()
-{
-	if( this!=NULL)// && ( this!=(gcone * const)0xfbfbfbfbfbfbfbfb && this!=(gcone * const)0xfbfbfbfb ) )
-		return this->UCN;
-	else
-		return -1;
-}
-
-inline int gcone::getPredUCN()
-{
-	return this->pred;
-}
-/** Returns a copy of the this->baseRing */
-inline ring gcone::getBaseRing()
-{
-	return rCopy(this->baseRing);
-}
-
-inline void gcone::setBaseRing(ring r)
-{
-	this->baseRing=rCopy(r);
-}
-
-inline ring gcone::getRef2BaseRing()
-{
-	return this->baseRing;
-}
-
-/** \brief Compute the normals of the cone
- *
- * This method computes a representation of the cone in terms of facet normals. It takes an ideal
- * as its input. Redundancies are automatically removed using cddlib's dd_MatrixCanonicalize.
- * Other methods for redundancy checkings might be implemented later. See Anders' diss p.44.
- * Note that in order to use cddlib a 0-th column has to be added to the matrix since cddlib expects 
- * each row to represent an inequality of type const+x1+...+xn <= 0. While computing the normals we come across
- * the set \f$ \partial\mathcal{G} \f$ which we might store for later use. C.f p71 of journal
- * As a result of this procedure the pointer facetPtr points to the first facet of the cone.
- *
- * Optionally, if the parameter bool compIntPoint is set to TRUE the method will also compute
- * an interior point of the cone.
-		 */
-void gcone::getConeNormals(const ideal &I, bool compIntPoint)
-{
-#ifdef gfanp
-	timeval start, end;
-	gettimeofday(&start, 0);
-#endif
-	poly aktpoly;
-	int rows; 			// will contain the dimensions of the ineq matrix - deprecated by
-	dd_rowrange ddrows;
-	dd_colrange ddcols;
-	dd_rowset ddredrows;		// # of redundant rows in ddineq
-	dd_rowset ddlinset;		// the opposite
-	dd_rowindex ddnewpos=NULL;		  // all to make dd_Canonicalize happy
-	dd_NumberType ddnumb=dd_Integer; //Number type
-	dd_ErrorType dderr=dd_NoError;		
-	//Compute the # inequalities i.e. rows of the matrix
-	rows=0; //Initialization
-	for (int ii=0;ii<IDELEMS(I);ii++)
-	{
-// 		aktpoly=(poly)I->m[ii];
-// 		rows=rows+pLength(aktpoly)-1;
-		rows=rows+pLength((poly)I->m[ii])-1;
-	}
-
-	dd_rowrange aktmatrixrow=0;	// needed to store the diffs of the expvects in the rows of ddineq
-	ddrows=rows;
-	ddcols=this->numVars;
-	dd_MatrixPtr ddineq; 		//Matrix to store the inequalities			
-	ddineq=dd_CreateMatrix(ddrows,ddcols+1); //The first col has to be 0 since cddlib checks for additive consts there
-		
-	// We loop through each g\in GB and compute the resulting inequalities
-	for (int i=0; i<IDELEMS(I); i++)
-	{
-		aktpoly=(poly)I->m[i];		//get aktpoly as i-th component of I
-		//simpler version of storing expvect diffs
-		int *leadexpv=(int*)omAlloc(((this->numVars)+1)*sizeof(int));
-		pGetExpV(aktpoly,leadexpv);
-		poly pNextTerm=aktpoly;
-		while(pNext(pNextTerm)/*pNext(aktpoly)*/!=NULL)
-		{
-			pNextTerm/*aktpoly*/=pNext(pNextTerm);
-			int *tailexpv=(int*)omAlloc(((this->numVars)+1)*sizeof(int));
-			pGetExpV(pNextTerm,tailexpv);			
-			for(int kk=1;kk<=this->numVars;kk++)
-			{				
-				dd_set_si(ddineq->matrix[(dd_rowrange)aktmatrixrow][kk],leadexpv[kk]-tailexpv[kk]);
-			}
-			aktmatrixrow += 1;
-			omFree(tailexpv);
-		}		
-		omFree(leadexpv);	
-	} //for
-#if true
-	/*Let's make the preprocessing here. This could already be done in the above for-loop,
-	* but for a start it is more convenient here.
-	* We check the necessary condition of FJT p.18
-	* Quote: [...] every non-zero spoly should have at least one of its terms in inv(G)
-	*/
-// 	ideal initialForm=idInit(IDELEMS(I),1);
-// 	int64vec *gamma=new int64vec(this->numVars);
-	int falseGammaCounter=0;
-	int *redRowsArray=NULL;
-	int num_alloc=0;
-	int num_elts=0;	
-	for(int ii=0;ii<ddineq->rowsize;ii++)
-	{
-		ideal initialForm=idInit(IDELEMS(I),I->rank);
-		//read row ii into gamma
-// 		int64 tmp;
-		int64vec *gamma=new int64vec(this->numVars);
-		for(int jj=1;jj<=this->numVars;jj++)
-		{
-			int64 tmp;
-			tmp=(int64)mpq_get_d(ddineq->matrix[ii][jj]);
-			(*gamma)[jj-1]=(int64)tmp;
-		}
-		computeInv((ideal&)I,initialForm,*gamma);
-		delete gamma;
-		//Create leading ideal
-		ideal L=idInit(IDELEMS(initialForm),1);
-		for(int jj=0;jj<IDELEMS(initialForm);jj++)
-		{
-			poly p=pHead(initialForm->m[jj]);
-			L->m[jj]=pCopy(/*pHead(initialForm->m[jj]))*/p);
-			pDelete(&p);
-		}		
-		
-		LObject *P = new sLObject();//TODO What's the difference between sLObject and LObject?
-		memset(P,0,sizeof(LObject));
-
-		for(int jj=0;jj<=IDELEMS(initialForm)-2;jj++)
-		{
-			bool isMaybeFacet=FALSE;
-			P->p1=initialForm->m[jj];	//build spolys of initialForm in_v
-
-			for(int kk=jj+1;kk<=IDELEMS(initialForm)-1;kk++)
-			{
-				P->p2=initialForm->m[kk];
-				ksCreateSpoly(P);							
-				if(P->p!=NULL)	//spoly non zero=?
-				{	
-					poly p;//NOTE Don't use pInit here. Evil memleak will follow
-					poly q;
-					poly pDel,qDel;
-					p=pCopy(P->p);
-					q=pHead(p);	//Monomial q
-					pDelete(&q);
-					pDel=p; qDel=q;
-					isMaybeFacet=FALSE;
-					//TODO: Suffices to check LTs here
-					while(p!=NULL)
-					{						
-						q=pHead(p);
-						for(int ll=0;ll<IDELEMS(L);ll++)
-						{
-							if(pLmEqual(L->m[ll],q) || pDivisibleBy(L->m[ll],q))
-							{							
-								isMaybeFacet=TRUE;
- 								break;//for
-							}
-						}
-						pDelete(&q);
-						if(isMaybeFacet==TRUE)
-						{
-							break;//while(p!=NULL)
-						}
-						p=pNext(p);
-					}//while
-// 					pDelete(&p);//NOTE Better to use pDel and qDel. Commenting in this line will not work!
-					if(q!=NULL) pDelete(&q);
-					pDelete(&pDel);
-					pDelete(&qDel);
-					if(isMaybeFacet==FALSE)
-					{
-						dd_set_si(ddineq->matrix[ii][0],1);						
-// 						if(num_alloc==0)
-// 							num_alloc += 1;
-// 						else						
-// 							num_alloc += 1;
-						if(num_alloc==num_elts)	num_alloc==0 ? num_alloc=1 : num_alloc*=2;
-						
-						void *tmp = realloc(redRowsArray,(num_alloc*sizeof(int)));
-						if(!tmp)
-						{
-							WerrorS("Woah dude! Couldn't realloc memory\n");
-							exit(-1);
-						}
-						redRowsArray = (int*)tmp;
-						redRowsArray[num_elts]=ii;
-						num_elts++;
-						//break;//for(int kk, since we have found one that is not in L	
-						goto _start;	//mea culpa, mea culpa, mea maxima culpa
-					}
-				}//if(P->p!=NULL)
-				pDelete(&(P->p));
-			}//for k
-		}//for jj
-		_start:;
-		idDelete(&L);
-		delete P;
-		idDelete(&initialForm);
-	}//for(ii<ddineq-rowsize
-// 	delete gamma;
-	int offset=0;//needed for correction of redRowsArray[ii]
-#ifndef NDEBUG
-	printf("Removed %i of %i in preprocessing step\n",num_elts,ddineq->rowsize);
-#endif
-	for( int ii=0;ii<num_elts;ii++ )
-	{
-		dd_MatrixRowRemove(&ddineq,redRowsArray[ii]+1-offset);//cddlib sucks at enumeration
-		offset++;
-	}	
-	free(redRowsArray);//NOTE May crash on some machines.
-	/*And now for the strictly positive rows
-	* Doesn't gain significant speedup
-	*/
-	/*int *posRowsArray=NULL;
-	num_alloc=0;
-	num_elts=0;
-	for(int ii=0;ii<ddineq->rowsize;ii++)
-	{
-		int64vec *ivPos = new int64vec(this->numVars);
-		for(int jj=0;jj<this->numVars;jj++)
-			(*ivPos)[jj]=(int)mpq_get_d(ddineq->matrix[ii][jj+1]);
-		bool isStrictlyPos=FALSE;
-		int posCtr=0;		
-		for(int jj=0;jj<this->numVars;jj++)
-		{
-			int64vec *ivCanonical = new int64vec(this->numVars);
-			jj==0 ? (*ivCanonical)[ivPos->length()-1]=1 : (*ivCanonical)[jj-1]=1;
-			if(dotProduct(*ivCanonical,*ivPos)!=0)
-			{
-				if ((*ivPos)[jj]>=0)
-				{				
-					posCtr++;				
-				}
-			}			
-			delete ivCanonical;
-		}
-		if(posCtr==ivPos->length())
-			isStrictlyPos=TRUE;
-		if(isStrictlyPos==TRUE)
-		{
-			if(num_alloc==0)
-				num_alloc += 1;
-			else
-				num_alloc += 1;
-			void *tmp = realloc(posRowsArray,(num_alloc*sizeof(int)));
-			if(!tmp)
-			{
-				WerrorS("Woah dude! Couldn't realloc memory\n");
-				exit(-1);
-			}
-			posRowsArray = (int*)tmp;
-			posRowsArray[num_elts]=ii;
-			num_elts++;	
-		}
-		delete ivPos;
-	}
-	offset=0;
-	for(int ii=0;ii<num_elts;ii++)
-	{
-		dd_MatrixRowRemove(&ddineq,posRowsArray[ii]+1-offset);
-		offset++;
-	}
-	free(posRowsArray);*/
-#endif
-
-	dd_MatrixCanonicalize(&ddineq, &ddlinset, &ddredrows, &ddnewpos, &dderr);	
-	ddrows = ddineq->rowsize;	//Size of the matrix with redundancies removed
-	ddcols = ddineq->colsize;
-	
-	this->ddFacets = dd_CopyMatrix(ddineq);
-			
-	/*Write the normals into class facet*/	
-	facet *fAct; 	//pointer to active facet	
-	int numNonFlip=0;
-	for (int kk = 0; kk<ddrows; kk++)
-	{
-		int64 ggT=1;//NOTE Why does (int)mpq_get_d(ddineq->matrix[kk][1]) not work?
-		int64vec *load = new int64vec(this->numVars);//int64vec to store a single facet normal that will then be stored via setFacetNormal
-		for (int jj = 1; jj <ddcols; jj++)
-		{
-			int64 val;
-			val = (int64)mpq_get_d(ddineq->matrix[kk][jj]);
-			(*load)[jj-1] = val;	//store typecasted entry at pos jj-1 of load
-			ggT = int64gcd(ggT,/*(int64&)foo*/val);
-		}//for (int jj = 1; jj <ddcols; jj++)
-		if(ggT>1)
-		{
-			for(int ll=0;ll<this->numVars;ll++)
-				(*load)[ll] /= ggT;//make primitive vector
-		}
-		/*Quick'n'dirty hack for flippability. Executed only if gcone::hasHomInput==FALSE
-		* Otherwise every facet intersects the positive orthant
-		*/	
-		if(gcone::hasHomInput==FALSE)
-		{
-			//TODO: No dP needed
-			bool isFlip=FALSE;
-			for(int jj = 0; jj<load->length(); jj++)
-			{
-// 				int64vec *ivCanonical = new int64vec(load->length());
-// 				(*ivCanonical)[jj]=1;
-// 				if (dotProduct(*load,*ivCanonical)<0)	
-// 				{
-// 					isFlip=TRUE;
-// 					break;	//URGHS
-// 				}
-// 				delete ivCanonical;
-				if((*load)[jj]<0)
-				{
-					isFlip=TRUE;
-					break;
-				}				
-			}/*End of check for flippability*/
-// 			if(iv64isStrictlyPositive(load))
-// 				isFlip=TRUE;
-			if(isFlip==FALSE)
-			{
-				this->numFacets++;
-				numNonFlip++;
-				if(this->numFacets==1)
-				{
-					facet *fRoot = new facet();
-					this->facetPtr = fRoot;
-					fAct = fRoot;							
-				}
-				else
-				{
-					fAct->next = new facet();
-					fAct = fAct->next;
-				}
-				fAct->isFlippable=FALSE;
-				fAct->setFacetNormal(load);
-				fAct->setUCN(this->getUCN());
-#ifndef NDEBUG
-				printf("Marking facet (");load->show(1,0);printf(") as non flippable\n");		
-#endif
-			}
-			else
-			{
-				this->numFacets++;
-				if(this->numFacets==1)
-				{
-					facet *fRoot = new facet();
-					this->facetPtr = fRoot;
-					fAct = fRoot;
-				}
-				else
-				{
-					fAct->next = new facet();
-					fAct = fAct->next;
-				}
-				fAct->isFlippable=TRUE;
-				fAct->setFacetNormal(load);
-				fAct->setUCN(this->getUCN());					
-			}
-		}//hasHomInput==FALSE
-		else	//Every facet is flippable
-		{	/*Now load should be full and we can call setFacetNormal*/					
-			this->numFacets++;
-			if(this->numFacets==1)
-			{
-				facet *fRoot = new facet();
-				this->facetPtr = fRoot;
-				fAct = fRoot;
-			}
-			else
-			{
-				fAct->next = new facet();
-				fAct = fAct->next;
-			}
-			fAct->isFlippable=TRUE;
-			fAct->setFacetNormal(load);
-			fAct->setUCN(this->getUCN());					
-		}//if (isFlippable==FALSE)
-		delete load;				
-	}//for (int kk = 0; kk<ddrows; kk++)
-			
-	//In cases like I=<x-1,y-1> there are only non-flippable facets...
-	if(numNonFlip==this->numFacets)
-	{
-		WerrorS ("Only non-flippable facets. Terminating...\n");
-// 		exit(-1);//Bit harsh maybe...
-	}
-			
-	/*
-	Now we should have a linked list containing the facet normals of those facets that are
-	-irredundant
-	-flipable
-	Adressing is done via *facetPtr
-	*/			
-	if (compIntPoint==TRUE)
-	{
-		int64vec *iv = new int64vec(this->numVars);
-		dd_MatrixPtr posRestr=dd_CreateMatrix(this->numVars,this->numVars+1);
-		int jj=1;
-		for (int ii=0;ii<=this->numVars;ii++)
-		{
-			dd_set_si(posRestr->matrix[ii][jj],1);
-			jj++;							
-		}
-		dd_MatrixAppendTo(&ddineq,posRestr);
-		interiorPoint(ddineq, *iv);	//NOTE ddineq contains non-flippable facets
-		this->setIntPoint(iv);	//stores the interior point in gcone::ivIntPt
-		delete iv;
-		dd_FreeMatrix(posRestr);
-	}	
-	//Clean up but don't delete the return value!	
-	//dd_FreeMatrix(ddineq);	
-	set_free(ddredrows);//check
-	set_free(ddlinset);//check
-	//free(ddnewpos);//<-- NOTE Here the crash occurs omAlloc issue?
-#ifdef gfanp
-	gettimeofday(&end, 0);
-	time_getConeNormals += (end.tv_sec - start.tv_sec + 1e-6*(end.tv_usec - start.tv_usec));
-#endif
-
-}//gcone::getConeNormals(ideal I)
-		
-/** \brief Compute the (codim-2)-facets of a given cone
- * This method is used during noRevS
- * Additionally we check whether the codim2-facet normal is strictly positive. Otherwise
- * the facet is marked as non-flippable.
- */
-void gcone::getCodim2Normals(const gcone &gc)
-{
-#ifdef gfanp
-	timeval start, end;
-  	gettimeofday(&start, 0);
-#endif
-	//this->facetPtr->codim2Ptr = new facet(2);	//instantiate a (codim-2)-facet
-	facet *fAct;
-	fAct = this->facetPtr;		
-	facet *codim2Act;
-	//codim2Act = this->facetPtr->codim2Ptr;
-	dd_MatrixPtr ddineq;//,P,ddakt;
-	dd_ErrorType err;
-	//ddineq = facets2Matrix(gc);	//get a matrix representation of the cone
-	ddineq = dd_CopyMatrix(gc.ddFacets);
-	/*Now set appropriate linearity*/
-	for (int ii=0; ii<this->numFacets; ii++)			
-	{	
-		dd_rowset impl_linset, redset;
-		dd_rowindex newpos;
-		dd_MatrixPtr ddakt;
-  		ddakt = dd_CopyMatrix(ddineq);
-// 		ddakt->representation=dd_Inequality;	//Not using this makes it faster. But why does the quick check below still work?
-// 		ddakt->representation=dd_Generator;
-		set_addelem(ddakt->linset,ii+1);/*Now set appropriate linearity*/
-#ifdef gfanp
-		timeval t_ddMC_start, t_ddMC_end;
-		gettimeofday(&t_ddMC_start,0);
-#endif				
- 		//dd_MatrixCanonicalize(&ddakt, &impl_linset, &redset, &newpos, &err);
-		dd_PolyhedraPtr ddpolyh;
-		ddpolyh=dd_DDMatrix2Poly(ddakt, &err);
-// 		ddpolyh=dd_DDMatrix2Poly2(ddakt, dd_MaxCutoff, &err);
-		dd_MatrixPtr P;
-		P=dd_CopyGenerators(ddpolyh);		
-		dd_FreePolyhedra(ddpolyh);
-		//TODO Call for one cone , normalize - check equalities - plus lineality -done
-#ifdef gfanp
-		gettimeofday(&t_ddMC_end,0);
-		t_ddMC += (t_ddMC_end.tv_sec - t_ddMC_start.tv_sec + 1e-6*(t_ddMC_end.tv_usec - t_ddMC_start.tv_usec));
-#endif	
-		/* We loop through each row of P normalize it by making all
-		* entries integer ones and add the resulting vector to the
-		* int matrix facet::codim2Facets */
-		for (int jj=1;jj<=/*ddakt*/P->rowsize;jj++)
-		{					
-			fAct->numCodim2Facets++;
-			if(fAct->numCodim2Facets==1)					
-			{						
-				fAct->codim2Ptr = new facet(2);						
-				codim2Act = fAct->codim2Ptr;
-			}
-			else
-			{
-				codim2Act->next = new facet(2);
-				codim2Act = codim2Act->next;
-			}
-			int64vec *n = new int64vec(this->numVars);
-#ifdef gfanp
-			timeval t_mI_start, t_mI_end;
-			gettimeofday(&t_mI_start,0);
-#endif
-			makeInt(P,jj,*n);
-			/*for(int kk=0;kk<this->numVars;kk++)
-			{
-				int foo;
-				foo = (int)mpq_get_d(ddakt->matrix[ii][kk+1]);
-				(*n)[kk]=foo;
-			}*/
-#ifdef gfanp
-			gettimeofday(&t_mI_end,0);
-			t_mI += (t_mI_end.tv_sec - t_mI_start.tv_sec + 1e-6*(t_mI_end.tv_usec - t_mI_start.tv_usec));
-#endif
-			codim2Act->setFacetNormal(n);
-			delete n;					
-		}		
-		/*We check whether the facet spanned by the codim-2 facets
-		* intersects with the positive orthant. Otherwise we define this
-		* facet to be non-flippable. Works since we set the appropriate 
-		* linearity for ddakt above.
-		*/
-		//TODO It might be faster to compute jus the implied equations instead of a relative interior point
-// 		int64vec *iv_intPoint = new int64vec(this->numVars);
-// 		dd_MatrixPtr shiftMatrix;
-// 		dd_MatrixPtr intPointMatrix;
-// 		shiftMatrix = dd_CreateMatrix(this->numVars,this->numVars+1);
-// 		for(int kk=0;kk<this->numVars;kk++)
-// 		{
-// 			dd_set_si(shiftMatrix->matrix[kk][0],1);
-// 			dd_set_si(shiftMatrix->matrix[kk][kk+1],1);
-// 		}
-// 		intPointMatrix=dd_MatrixAppend(ddakt,shiftMatrix);
-// #ifdef gfanp
-// 		timeval t_iP_start, t_iP_end;
-// 		gettimeofday(&t_iP_start, 0);
-// #endif		
-// 		interiorPoint(intPointMatrix,*iv_intPoint);
-// // 		dd_rowset impl_linste,lbasis;
-// // 		dd_LPSolutionPtr lps=NULL;
-// // 		dd_ErrorType err;
-// // 		dd_FindRelativeInterior(intPointMatrix, &impl_linset, &lbasis, &lps, &err);
-// #ifdef gfanp
-// 		gettimeofday(&t_iP_end, 0);
-// 		t_iP += (t_iP_end.tv_sec - t_iP_start.tv_sec + 1e-6*(t_iP_end.tv_usec - t_iP_start.tv_usec));
-// #endif
-// 		for(int ll=0;ll<this->numVars;ll++)
-// 		{
-// 			if( (*iv_intPoint)[ll] < 0 )
-// 			{
-// 				fAct->isFlippable=FALSE;
-// 				break;
-// 			}
-// 		}
-		/*End of check*/
-		/*This test should be way less time consuming*/
-#ifdef gfanp
-		timeval t_iP_start, t_iP_end;
-		gettimeofday(&t_iP_start, 0);
-#endif
-		bool containsStrictlyPosRay=TRUE;
-		for(int ii=0;ii<ddakt->rowsize;ii++)
-		{
-			containsStrictlyPosRay=TRUE;
-			for(int jj=1;jj<this->numVars;jj++)
-			{
-				if(ddakt->matrix[ii][jj]<=0)
-				{
-					containsStrictlyPosRay=FALSE;
-					break;
-				}
-			}
-			if(containsStrictlyPosRay==TRUE)
-				break;
-		}
-		if(containsStrictlyPosRay==FALSE)
-		//TODO Not sufficient. Intersect with pos orthant for pos int
-			fAct->isFlippable=FALSE;
-#ifdef gfanp
-		gettimeofday(&t_iP_end, 0);
-		t_iP += (t_iP_end.tv_sec - t_iP_start.tv_sec + 1e-6*(t_iP_end.tv_usec - t_iP_start.tv_usec));
-#endif
-		/**/
-		fAct = fAct->next;	
-		dd_FreeMatrix(ddakt);
-		dd_FreeMatrix(P);
-	}//for 	
-	dd_FreeMatrix(ddineq);
-#ifdef gfanp
-	gettimeofday(&end, 0);
-	time_getCodim2Normals += (end.tv_sec - start.tv_sec + 1e-6*(end.tv_usec - start.tv_usec));
-#endif
-}
-		
-/** Really extremal rays this time ;)
-* Extremal rays are unique modulo the homogeneity space.
-* Therefore we dd_MatrixAppend gc->ddFacets and gcone::dd_LinealitySpace
-* into ddineq. Next we compute the extremal rays of the so given subspace.
-* Figuring out whether a ray belongs to a given facet(normal) is done by
-* checking whether the inner product of the ray with the normal is zero.
-* We use ivAdd here which returns a new int64vec. Therefore we need to avoid
-* a memory leak which would be cause by the line 
-* iv=ivAdd(iv,b)
-* So we keep pointer tmp to iv and delete(tmp), so there should not occur a 
-* memleak
-* TODO normalization
-*/
-void gcone::getExtremalRays(const gcone &gc)
-{
-#ifdef gfanp
-	timeval start, end;
-	gettimeofday(&start, 0);
-	timeval poly_start, poly_end;
-	gettimeofday(&poly_start,0);
-#endif
-	//Add lineality space - dd_LinealitySpace
-	dd_MatrixPtr ddineq;
-	dd_ErrorType err;	
-	ddineq = (dd_LinealitySpace->rowsize>0) ? dd_AppendMatrix(gc.ddFacets,gcone::dd_LinealitySpace) : dd_CopyMatrix(gc.ddFacets);
-	/* In case the input is non-homogeneous we add constrains for the positive orthant.
-	* This is justified by the fact that for non-homog ideals we only consider the 
-	* restricted fan. This way we can be sure to find strictly positive interior points.
-	* This in turn makes life easy when checking for flippability!
-	* Drawback: Makes the LP larger so probably slows down computations a wee bit.
-	*/
-	dd_MatrixPtr ddPosRestr;
-	if(hasHomInput==FALSE)
-	{
-		dd_MatrixPtr tmp;
-		ddPosRestr=dd_CreateMatrix(this->numVars,this->numVars+1);
-		for(int ii=0;ii<this->numVars;ii++)
-			dd_set_si(ddPosRestr->matrix[ii][ii+1],1);
-		dd_MatrixAppendTo(&ddineq,ddPosRestr);
-		assert(ddineq);
-		dd_FreeMatrix(ddPosRestr);
-	}	
-	dd_PolyhedraPtr ddPolyh;
-	ddPolyh = dd_DDMatrix2Poly(ddineq, &err);
-	dd_MatrixPtr P;
-	P=dd_CopyGenerators(ddPolyh);//Here we actually compute the rays!
-	dd_FreePolyhedra(ddPolyh);
-	dd_FreeMatrix(ddineq);
-#ifdef gfanp
-	gettimeofday(&poly_end,0);
-	t_ddPolyh += (poly_end.tv_sec - poly_start.tv_sec + 1e-6*(poly_end.tv_usec - poly_start.tv_usec));
-#endif
-	/* Compute interior point on the fly*/
-	int64vec *ivIntPointOfCone = new int64vec(this->numVars);
-	int64vec *foo = new int64vec(this->numVars);
-	for(int ii=0;ii<P->rowsize;ii++)
-	{
-		int64vec *tmp = ivIntPointOfCone;
-		makeInt(P,ii+1,*foo);
-		ivIntPointOfCone = iv64Add(ivIntPointOfCone,foo);
-		delete tmp;
-	}
-	delete foo;
-	int64 ggT=(*ivIntPointOfCone)[0];
-	for (int ii=0;ii<(this->numVars);ii++)
-	{
-		if( (*ivIntPointOfCone)[ii]>INT_MAX ) 
-			WarnS("Interior point exceeds INT_MAX!\n");
-		//Compute intgcd
-		ggT=int64gcd(ggT,(*ivIntPointOfCone)[ii]);
-	}
-	
-	//Divide out a common gcd > 1
-	if(ggT>1)
-	{
-		for(int ii=0;ii<this->numVars;ii++)
-		{
-			(*ivIntPointOfCone)[ii] /= ggT;
-			if( (*ivIntPointOfCone)[ii]>INT_MAX ) WarnS("Interior point still exceeds INT_MAX after GCD!\n");
-		}
-	}
-
-	/*For homogeneous input (like Det3,3,5) the int points may be negative. So add a suitable multiple of (1,_,1)*/
-	if(hasHomInput==TRUE && iv64isStrictlyPositive(ivIntPointOfCone)==FALSE)
-	{
-		int64vec *ivOne = new int64vec(this->numVars);
-		int maxNegEntry=0;
-		for(int ii=0;ii<this->numVars;ii++)
-		{
-// 			(*ivOne)[ii]=1;
-			if ((*ivIntPointOfCone)[ii]<maxNegEntry) maxNegEntry=(*ivIntPointOfCone)[ii];
-		}
-		maxNegEntry *= -1;
-		maxNegEntry++;//To be on the safe side
-		for(int ii=0;ii<this->numVars;ii++)
-			(*ivOne)[ii]=maxNegEntry;
-		int64vec *tmp=ivIntPointOfCone;
-		ivIntPointOfCone=iv64Add(ivIntPointOfCone,ivOne);
-		delete(tmp);
-// 		while( !iv64isStrictlyPositive(ivIntPointOfCone) )
-// 		{
-// 			int64vec *tmp = ivIntPointOfCone;
-// 			for(int jj=0;jj<this->numVars;jj++)
-// 				(*ivOne)[jj] = (*ivOne)[jj] << 1; //times 2
-// 			ivIntPointOfCone = ivAdd(ivIntPointOfCone,ivOne);
-// 			delete tmp;				
-// 		}
-		delete ivOne;
-		int64 ggT=(*ivIntPointOfCone)[0];
-		for(int ii=0;ii<this->numVars;ii++)
-			ggT=int64gcd( ggT, (*ivIntPointOfCone)[ii]);
-		if(ggT>1)
-		{
-			for(int jj=0;jj<this->numVars;jj++)
-				(*ivIntPointOfCone)[jj] /= ggT;
-		}
-	}
-// 	assert(iv64isStrictlyPositive(ivIntPointOfCone));
-	
-	this->setIntPoint(ivIntPointOfCone);
-	delete(ivIntPointOfCone);
-	/* end of interior point computation*/
-	
-	//Loop through the rows of P and check whether fNormal*row[i]=0 => row[i] belongs to fNormal
-	int rows=P->rowsize;
-	facet *fAct=gc.facetPtr;
-	//Construct an array to hold the extremal rays of the cone
-	this->gcRays = (int64vec**)omAlloc0(sizeof(int64vec*)*P->rowsize);	
-	for(int ii=0;ii<P->rowsize;ii++)
-	{
-		int64vec *rowvec = new int64vec(this->numVars);
-		makeInt(P,ii+1,*rowvec);//get an integer entry instead of rational, rowvec is primitve
-		this->gcRays[ii] = iv64Copy(rowvec);
-		delete rowvec;
-	}	
-	this->numRays=P->rowsize;
-	//Check which rays belong to which facet
-	while(fAct!=NULL)
-	{
-		const int64vec *fNormal;// = new int64vec(this->numVars);
-		fNormal = fAct->getRef2FacetNormal();//->getFacetNormal();
-		int64vec *ivIntPointOfFacet = new int64vec(this->numVars);
-		for(int ii=0;ii<rows;ii++)
-		{			
- 			if(dotProduct(*fNormal,this->gcRays[ii])==0)
-			{
-				int64vec *tmp = ivIntPointOfFacet;//Prevent memleak
-				fAct->numCodim2Facets++;
-				facet *codim2Act;
-				if(fAct->numCodim2Facets==1)					
-				{						
-					fAct->codim2Ptr = new facet(2);						
-					codim2Act = fAct->codim2Ptr;
-				}
-				else
-				{
-					codim2Act->next = new facet(2);
-					codim2Act = codim2Act->next;
-				}
-				//codim2Act->setFacetNormal(rowvec);
-				//Rather just let codim2Act point to the corresponding int64vec of gcRays
-				codim2Act->fNormal=this->gcRays[ii];
-				fAct->numRays++;				 
-				//Memleak avoided via tmp
-				ivIntPointOfFacet=iv64Add(ivIntPointOfFacet,this->gcRays[ii]);
-				//Now tmp still points to the OLD address of ivIntPointOfFacet
-				delete(tmp);
-					
-			}
-		}//For non-homog input ivIntPointOfFacet should already be >0 here
-// 		if(!hasHomInput) {assert(iv64isStrictlyPositive(ivIntPointOfFacet));}
-		//if we have no strictly pos ray but the input is homogeneous
-		//then add a suitable multiple of (1,...,1)
-		if( !iv64isStrictlyPositive(ivIntPointOfFacet) && hasHomInput==TRUE)
-		{
-			int64vec *ivOne = new int64vec(this->numVars);
-			for(int ii=0;ii<this->numVars;ii++)
-				(*ivOne)[ii]=1;
-			while( !iv64isStrictlyPositive(ivIntPointOfFacet) )
-			{
-				int64vec *tmp = ivIntPointOfFacet;
-				for(int jj=0;jj<this->numVars;jj++)
-				{
-					(*ivOne)[jj] = (*ivOne)[jj] << 1; //times 2
-				}
-				ivIntPointOfFacet = iv64Add(ivIntPointOfFacet/*diff*/,ivOne);
-				delete tmp;				
-			}
-			delete ivOne;
-		}
-		int64 ggT=(*ivIntPointOfFacet)[0];
-		for(int ii=0;ii<this->numVars;ii++)
-			ggT=int64gcd(ggT,(*ivIntPointOfFacet)[ii]);
-		if(ggT>1)
-		{
-			for(int ii=0;ii<this->numVars;ii++)
-				(*ivIntPointOfFacet)[ii] /= ggT;
-		}			
-		fAct->setInteriorPoint(ivIntPointOfFacet);
-		
-		delete(ivIntPointOfFacet);
-		//Now (if we have at least 3 variables) do a bubblesort on the rays
-		/*if(this->numVars>2)
-		{
-			facet *A[fAct->numRays-1];
-			facet *f2Act=fAct->codim2Ptr;
-			for(unsigned ii=0;ii<fAct->numRays;ii++)
-			{
-				A[ii]=f2Act;
-				f2Act=f2Act->next;
-			}
-			bool exchanged=FALSE;
-			unsigned n=fAct->numRays-1;
-			do
-			{
-				exchanged=FALSE;//n=fAct->numRays-1;				
-				for(unsigned ii=0;ii<=n-1;ii++)
-				{					
-					if((A[ii]->fNormal)->compare((A[ii+1]->fNormal))==1)
-					{
-						//Swap rays
-						cout << "Swapping ";
-						A[ii]->fNormal->show(1,0); cout << " with "; A[ii+1]->fNormal->show(1,0); cout << endl;
-						A[ii]->next=A[ii+1]->next;
-						if(ii>0)
-							A[ii-1]->next=A[ii+1];
-						A[ii+1]->next=A[ii];
-						if(ii==0)
-							fAct->codim2Ptr=A[ii+1];
-						//end swap
-						facet *tmp=A[ii];//swap in list
-						A[ii+1]=A[ii];
-						A[ii]=tmp;
-// 						tmp=NULL;			
-					}					
-				}
-				n--;			
-			}while(exchanged==TRUE && n>=0);
-		}*///if pVariables>2
-// 		delete fNormal;		
-		fAct = fAct->next;
-	}//end of facet checking
-	dd_FreeMatrix(P);
-	//Now all extremal rays should be set w.r.t their respective fNormal
-	//TODO Not sufficient -> vol2 II/125&127
-	//NOTE Sufficient according to cddlibs doc. These ARE rays
-	//What the hell... let's just take interior points
-	if(gcone::hasHomInput==FALSE)
-	{
-		fAct=gc.facetPtr;
-		while(fAct!=NULL)
-		{
-// 			bool containsStrictlyPosRay=FALSE;
-// 			facet *codim2Act;
-// 			codim2Act = fAct->codim2Ptr;
-// 			while(codim2Act!=NULL)
-// 			{
-// 				int64vec *rayvec;
-// 				rayvec = codim2Act->getFacetNormal();//Mind this is no normal but a ray!
-// 				//int negCtr=0;
-// 				if(iv64isStrictlyPositive(rayvec))
-// 				{
-// 					containsStrictlyPosRay=TRUE;
-// 					delete(rayvec);
-// 					break;
-// 				}				
-// 				delete(rayvec);
-// 				codim2Act = codim2Act->next;
-// 			}
-// 			if(containsStrictlyPosRay==FALSE)
-// 				fAct->isFlippable=FALSE;
-			if(!iv64isStrictlyPositive(fAct->interiorPoint))
-				fAct->isFlippable=FALSE;
-			fAct = fAct->next;
-		}
-	}//hasHomInput?	
-#ifdef gfanp
-	gettimeofday(&end, 0);
-	t_getExtremalRays += (end.tv_sec - start.tv_sec + 1e-6*(end.tv_usec - start.tv_usec));
-#endif	
-}
-
-/** Order the spanning rays in a lex way hopefully using qsort()*/
-void gcone::orderRays()
-{
-//   qsort(gcRays,sizeof(int64vec),int64vec::compare);
-}
-	
-inline bool gcone::iv64isStrictlyPositive(const int64vec * iv64)
-{
-	bool res=TRUE;
-	for(int ii=0;ii<iv64->length();ii++)
-	{
-		if((*iv64)[ii]<=0)
-		{
-			res=FALSE;
-			break;
-		}		
-	}
-	return res;
-}
-
-/** \brief Compute the Groebner Basis on the other side of a shared facet 
- *
- * Implements algorithm 4.3.2 from Anders' thesis.
- * As shown there it is not necessary to compute an interior point. The knowledge of the facet normal
- * suffices. A term \f$ x^\gamma \f$ of \f$ g \f$ is in \f$  in_\omega(g) \f$ iff \f$ \gamma - leadexp(g)\f$
- * is parallel to \f$ leadexp(g) \f$
- * Parallelity is checked using basic linear algebra. See gcone::isParallel.
- * Other possibilities include computing the rank of the matrix consisting of the vectors in question and
- * computing an interior point of the facet and taking all terms having the same weight with respect 
- * to this interior point.
- *\param ideal, facet
- * Input: a marked,reduced Groebner basis and a facet
- */
-inline void gcone::flip(ideal gb, facet *f)		//Compute "the other side"
-{	
-#ifdef gfanp
-	timeval start, end;
-	gettimeofday(&start, 0);
-#endif		
-	int64vec *fNormal;// = new int64vec(this->numVars);	//facet normal, check for parallelity			
-	fNormal = f->getFacetNormal();	//read this->fNormal;
-#ifndef NDEBUG
-// 	std::cout << "running gcone::flip" << std::endl;
-	printf("flipping UCN %i over facet",this->getUCN());
-	fNormal->show(1,0);
-	printf(") with UCN %i\n",f->getUCN() );	
-#endif
-	if(this->getUCN() != f->getUCN())
-	{
-		WerrorS("Uh oh... Trying to flip over facet with incompatible UCN");
-		exit(-1);
-	}
-	/*1st step: Compute the initial ideal*/
-	/*poly initialFormElement[IDELEMS(gb)];*/	//array of #polys in GB to store initial form
-	ideal initialForm=idInit(IDELEMS(gb),this->gcBasis->rank);
-	
-	computeInv(gb,initialForm,*fNormal);
-
-#ifndef NDEBUG
-/*	cout << "Initial ideal is: " << endl;
-	idShow(initialForm);
-	//f->printFlipGB();*/
-// 	cout << "===" << endl;
-#endif			
-	/*2nd step: lift initial ideal to a GB of the neighbouring cone using minus alpha as weight*/
-	/*Substep 2.1
-	compute $G_{-\alpha}(in_v(I)) 
-	see journal p. 66
-	NOTE Check for different rings. Prolly it will not always be necessary to add a weight, if the
-	srcRing already has a weighted ordering
-	*/
-	ring srcRing=currRing;
-	ring tmpRing;
-			
-	if( (srcRing->order[0]!=ringorder_a))
-	{
-		int64vec *iv;// = new int64vec(this->numVars);
-		iv = ivNeg(fNormal);//ivNeg uses iv64Copy -> new
-// 		tmpRing=rCopyAndAddWeight(srcRing,ivNeg(fNormal));
-		tmpRing=rCopyAndAddWeight(srcRing,iv);
-		delete iv;
-	}
-	else
-	{
-		tmpRing=rCopy0(srcRing);
-		int length=fNormal->length();
-		int *A=(int *)omAlloc0(length*sizeof(int));
-		for(int jj=0;jj<length;jj++)
-		{
-			A[jj]=-(*fNormal)[jj];
-		}
-		omFree(tmpRing->wvhdl[0]);
-		tmpRing->wvhdl[0]=(int*)A;
-		tmpRing->block1[0]=length;
-		rComplete(tmpRing);
-		//omFree(A);
-	}
-  	delete fNormal; 
-	rChangeCurrRing(tmpRing);	
-			
-	ideal ina;			
-	ina=idrCopyR(initialForm,srcRing);
-	idDelete(&initialForm);
-	ideal H;
-//  	H=kStd(ina,NULL,isHomog,NULL);	//we know it is homogeneous
-#ifdef gfanp
-	timeval t_kStd_start, t_kStd_end;
-	gettimeofday(&t_kStd_start,0);
-#endif
-	if(gcone::hasHomInput==TRUE)
-		H=kStd(ina,NULL,isHomog,NULL/*,gcone::hilbertFunction*/);
-	else
-		H=kStd(ina,NULL,isNotHomog,NULL);	//This is \mathcal(G)_{>_-\alpha}(in_v(I))
-#ifdef gfanp
-	gettimeofday(&t_kStd_end, 0);
-	t_kStd += (t_kStd_end.tv_sec - t_kStd_start.tv_sec + 1e-6*(t_kStd_end.tv_usec - t_kStd_start.tv_usec));
-#endif
-	idSkipZeroes(H);
-	idDelete(&ina);
-
-	/*Substep 2.2
-	do the lifting and mark according to H
-	*/
-	rChangeCurrRing(srcRing);
-	ideal srcRing_H;
-	ideal srcRing_HH;			
-	srcRing_H=idrCopyR(H,tmpRing);
-	//H is needed further below, so don't idDelete here
- 	srcRing_HH=ffG(srcRing_H,this->gcBasis);
- 	idDelete(&srcRing_H);
-		
-	/*Substep 2.2.1
-	 * Mark according to G_-\alpha
-	 * Here we have a minimal basis srcRing_HH. In order to turn this basis into a reduced basis
-	 * we have to compute an interior point of C(srcRing_HH). For this we need to know the cone
-	 * represented by srcRing_HH MARKED ACCORDING TO G_{-\alpha}
-	 * Thus we check whether the leading monomials of srcRing_HH and srcRing_H coincide. If not we 
-	 * compute the difference accordingly
-	*/
-#ifdef gfanp
-	timeval t_markings_start, t_markings_end;
-	gettimeofday(&t_markings_start, 0);
-#endif		
-	bool markingsAreCorrect=FALSE;
-	dd_MatrixPtr intPointMatrix;
-	int iPMatrixRows=0;
-	dd_rowrange aktrow=0;			
-	for (int ii=0;ii<IDELEMS(srcRing_HH);ii++)
-	{
-		poly aktpoly=(poly)srcRing_HH->m[ii];//This is a pointer, so don't pDelete
-		iPMatrixRows = iPMatrixRows+pLength(aktpoly);		
-	}
-	/* additionally one row for the standard-simplex and another for a row that becomes 0 during
-	 * construction of the differences
-	 */
-	intPointMatrix = dd_CreateMatrix(iPMatrixRows+2,this->numVars+1); 
-	intPointMatrix->numbtype=dd_Integer;	//NOTE: DO NOT REMOVE OR CHANGE TO dd_Rational
-	
-	for (int ii=0;ii<IDELEMS(srcRing_HH);ii++)
-	{
-		markingsAreCorrect=FALSE;	//crucial to initialise here
-		poly aktpoly=srcRing_HH->m[ii]; //Only a pointer, so don't pDelete
-		/*Comparison of leading monomials is done via exponent vectors*/
-		for (int jj=0;jj<IDELEMS(H);jj++)
-		{
-			int *src_ExpV = (int *)omAlloc((this->numVars+1)*sizeof(int));
-			int *dst_ExpV = (int *)omAlloc((this->numVars+1)*sizeof(int));
-			pGetExpV(aktpoly,src_ExpV);
-			rChangeCurrRing(tmpRing);	//this ring change is crucial!
-			poly p=pCopy(H->m[ii]);
-			pGetExpV(p/*pCopy(H->m[ii])*/,dst_ExpV);
-			pDelete(&p);
-			rChangeCurrRing(srcRing);
-			bool expVAreEqual=TRUE;
-			for (int kk=1;kk<=this->numVars;kk++)
-			{
-#ifndef NDEBUG
-// 				cout << src_ExpV[kk] << "," << dst_ExpV[kk] << endl;
-#endif
-				if (src_ExpV[kk]!=dst_ExpV[kk])
-				{
-					expVAreEqual=FALSE;
-				}
-			}								
-			if (expVAreEqual==TRUE)
-			{
-				markingsAreCorrect=TRUE; //everything is fine
-#ifndef NDEBUG
-// 				cout << "correct markings" << endl;
-#endif
-			}//if (pHead(aktpoly)==pHead(H->m[jj])
-			omFree(src_ExpV);
-			omFree(dst_ExpV);
-		}//for (int jj=0;jj<IDELEMS(H);jj++)
-		
-		int *leadExpV=(int *)omAlloc((this->numVars+1)*sizeof(int));
-		if (markingsAreCorrect==TRUE)
-		{
-			pGetExpV(aktpoly,leadExpV);
-		}
-		else
-		{
-			rChangeCurrRing(tmpRing);
-			pGetExpV(pHead(H->m[ii]),leadExpV); //We use H->m[ii] as leading monomial
-			rChangeCurrRing(srcRing);
-		}
-		/*compute differences of the expvects*/				
-		while (pNext(aktpoly)!=NULL)
-		{
-			int *v=(int *)omAlloc((this->numVars+1)*sizeof(int));
-			/*The following if-else-block makes sure the first term (i.e. the wrongly marked term) 
-			is not omitted when computing the differences*/
-			if(markingsAreCorrect==TRUE)
-			{
-				aktpoly=pNext(aktpoly);
-				pGetExpV(aktpoly,v);
-			}
-			else
-			{
-				pGetExpV(pHead(aktpoly),v);
-				markingsAreCorrect=TRUE;
-			}
-			int ctr=0;
-			for (int jj=0;jj<this->numVars;jj++)
-			{				
-				/*Store into ddMatrix*/				
-				if(leadExpV[jj+1]-v[jj+1])
-					ctr++;
-				dd_set_si(intPointMatrix->matrix[aktrow][jj+1],leadExpV[jj+1]-v[jj+1]);
-			}
-			/*It ought to be more sensible to avoid 0-rows in the first place*/
-// 			if(ctr==this->numVars)//We have a 0-row
-// 				dd_MatrixRowRemove(&intPointMatrix,aktrow);
-// 			else
-				aktrow +=1;
-			omFree(v);
-		}
-		omFree(leadExpV);
-	}//for (int ii=0;ii<IDELEMS(srcRing_HH);ii++)
-#ifdef gfanp
-	gettimeofday(&t_markings_end, 0);
-	t_markings += (t_markings_end.tv_sec - t_markings_start.tv_sec + 1e-6*(t_markings_end.tv_usec - t_markings_start.tv_usec));
-#endif
-	/*Now it is safe to idDelete(H)*/
-	idDelete(&H);
-	/*Preprocessing goes here since otherwise we would delete the constraint
-	* for the standard simplex.
-	*/
-	preprocessInequalities(intPointMatrix);
-	/*Now we add the constraint for the standard simplex*/
-// 	dd_set_si(intPointMatrix->matrix[aktrow][0],-1);
-// 	for (int jj=1;jj<=this->numVars;jj++)
-// 	{
-// 		dd_set_si(intPointMatrix->matrix[aktrow][jj],1);
-// 	}
-	//Let's make sure we compute interior points from the positive orthant
-// 	dd_MatrixPtr posRestr=dd_CreateMatrix(this->numVars,this->numVars+1);
-// 	
-// 	int jj=1;
-// 	for (int ii=0;ii<this->numVars;ii++)
-// 	{
-// 		dd_set_si(posRestr->matrix[ii][jj],1);
-// 		jj++;							
-// 	}
-	/*We create a matrix containing the standard simplex
-	* and constraints to assure a strictly positive point
-	* is computed */
-	dd_MatrixPtr posRestr = dd_CreateMatrix(this->numVars+1, this->numVars+1);
-	for(int ii=0;ii<posRestr->rowsize;ii++)
-	{
-		if(ii==0)
-		{
-			dd_set_si(posRestr->matrix[ii][0],-1);
-			for(int jj=1;jj<=this->numVars;jj++)			
-				dd_set_si(posRestr->matrix[ii][jj],1);			
-		}
-		else
-		{
-			/** Set all variables to \geq 1/10. YMMV but this choice is pretty equal*/
-			dd_set_si2(posRestr->matrix[ii][0],-1,2);
-			dd_set_si(posRestr->matrix[ii][ii],1);
-		}
-	}
-	dd_MatrixAppendTo(&intPointMatrix,posRestr);
-	dd_FreeMatrix(posRestr);
-
-	int64vec *iv_weight = new int64vec(this->numVars);
-#ifdef gfanp
-	timeval t_dd_start, t_dd_end;
-	gettimeofday(&t_dd_start, 0);
-#endif
-	dd_ErrorType err;
-	dd_rowset implLin, redrows;
-	dd_rowindex newpos;
-
-	//NOTE Here we should remove interiorPoint and instead
-	// create and ordering like (a(omega),a(fNormal),dp)
-// 	if(this->ivIntPt==NULL)
-		interiorPoint(intPointMatrix, *iv_weight);	//iv_weight now contains the interior point
-// 	else
-// 		iv_weight=this->getIntPoint();
-	dd_FreeMatrix(intPointMatrix);
-	/*Crude attempt for interior point */
-	/*dd_PolyhedraPtr ddpolyh;
-	dd_ErrorType err;
-	dd_rowset impl_linset,redset;
-	dd_rowindex newpos;
-	dd_MatrixCanonicalize(&intPointMatrix, &impl_linset, &redset, &newpos, &err);
-	ddpolyh=dd_DDMatrix2Poly(intPointMatrix, &err);
-	dd_MatrixPtr P;
-	P=dd_CopyGenerators(ddpolyh);
-	dd_FreePolyhedra(ddpolyh);
-	for(int ii=0;ii<P->rowsize;ii++)
-	{
- 		int64vec *iv_row=new int64vec(this->numVars);
-		makeInt(P,ii+1,*iv_row);
-		iv_weight =ivAdd(iv_weight, iv_row);
-		delete iv_row;
-	}
-	dd_FreeMatrix(P);
-	dd_FreeMatrix(intPointMatrix);*/
-#ifdef gfanp
-	gettimeofday(&t_dd_end, 0);
-	t_dd += (t_dd_end.tv_sec - t_dd_start.tv_sec + 1e-6*(t_dd_end.tv_usec - t_dd_start.tv_usec));
-#endif	
-	
-	/*Step 3
-	* turn the minimal basis into a reduced one */			
-	// NOTE May assume that at this point srcRing already has 3 blocks of orderins, starting with a
-	// Thus: 
-	//ring dstRing=rCopyAndChangeWeight(srcRing,iv_weight);	
-	ring dstRing=rCopy0(tmpRing);
-	int length=iv_weight->length();
-	int *A=(int *)omAlloc0(length*sizeof(int));
-	for(int jj=0;jj<length;jj++)
-	{
-		A[jj]=(*iv_weight)[jj];
-	}
-	dstRing->wvhdl[0]=(int*)A;
-	rComplete(dstRing);
-	rChangeCurrRing(dstRing);
- 	rDelete(tmpRing);
-	delete iv_weight;
-
-	ideal dstRing_I;			
-	dstRing_I=idrCopyR(srcRing_HH,srcRing);
-	idDelete(&srcRing_HH); //Hmm.... causes trouble - no more
-	//dstRing_I=idrCopyR(inputIdeal,srcRing);
-	BITSET save=test;
-	test|=Sy_bit(OPT_REDSB);
-	test|=Sy_bit(OPT_REDTAIL);
-#ifndef NDEBUG
-// 	test|=Sy_bit(6);	//OPT_DEBUG
-#endif
-	ideal tmpI;
-	//NOTE Any of the two variants of tmpI={idrCopy(),dstRing_I} does the trick
-	//tmpI = idrCopyR(this->inputIdeal,this->baseRing);
-	tmpI = dstRing_I;
-#ifdef gfanp
-	gettimeofday(&t_kStd_start,0);
-#endif
-	if(gcone::hasHomInput==TRUE)
-		dstRing_I=kStd(tmpI,NULL,isHomog,NULL/*,gcone::hilbertFunction*/);
-	else
-		dstRing_I=kStd(tmpI,NULL,isNotHomog,NULL);
-#ifdef gfanp
-	gettimeofday(&t_kStd_end, 0);
-	t_kStd += (t_kStd_end.tv_sec - t_kStd_start.tv_sec + 1e-6*(t_kStd_end.tv_usec - t_kStd_start.tv_usec));
-#endif
-	idDelete(&tmpI);
-	idNorm(dstRing_I);			
-// 	kInterRed(dstRing_I);
-	idSkipZeroes(dstRing_I);
-	test=save;
-	/*End of step 3 - reduction*/
-			
-	f->setFlipGB(dstRing_I);//store the flipped GB
-// 	idDelete(&dstRing_I);
-	f->flipRing=rCopy(dstRing);	//store the ring on the other side
-#ifndef NDEBUG
- 	printf("Flipped GB is UCN %i:\n",counter+1);
- 	idDebugPrint(dstRing_I);
-	printf("\n");
-#endif	
-	idDelete(&dstRing_I);	
-	rChangeCurrRing(srcRing);	//return to the ring we started the computation of flipGB in
- 	rDelete(dstRing);
-#ifdef gfanp
-	gettimeofday(&end, 0);
-	time_flip += (end.tv_sec - start.tv_sec + 1e-6*(end.tv_usec - start.tv_usec));
-#endif
-}//void flip(ideal gb, facet *f)
-
-/** \brief A slightly different approach to flipping
-* Here we use the fact that in_v(in_u(I))=in_(u+eps*v)(I). Therefore, we do no longer
-* need to compute an interior point and run BBA on the minimal basis but we can rather
-* use the ordering (a(omega),a(fNormal),dp)
-* The second parameter facet *f must not be const since we need to store f->flipGB
-* Problem: Assume we start in a cone with ordering (dp,C). Then \f$ in_\omega(I) \f$
-* will be from a ring with (a(),dp,C) and our resulting cone from (a(),a(),dp,C). Hence a way
-* must be found to circumvent the sequence of a()'s growing to a ridiculous size.
-* Therefore: We use (a(),a(),dp,C) for the computation of the reduced basis. But then we 
-* do have an interior point of the cone by adding the extremal rays. So we replace 
-* the latter cone by a cone with (a(sum_of_rays),dp,C). 
-* Con: It's incredibly ugly
-* Pro: No messing around with readConeFromFile()
-* Is there a way to construct a vector from \f$ \omega \f$ and the facet normal?
-*/
-inline void gcone::flip2(const ideal &gb, facet *f)
-{
-#ifdef gfanp
-	timeval start, end;
-	gettimeofday(&start, 0);
-#endif
-	const int64vec *fNormal;
-	fNormal = f->getRef2FacetNormal();/*->getFacetNormal();*/	//read this->fNormal;
-#ifndef NDEBUG
-// 	printf("flipping UCN %i over facet(",this->getUCN());
-// 	fNormal->show(1,0);
-// 	printf(") with UCN %i\n",f->getUCN());	
-#endif
-	if(this->getUCN() != f->getUCN())
-	{	printf("%i vs %i\n",this->getUCN(), f->getUCN() );
-		WerrorS("Uh oh... Trying to flip over facet with incompatible UCN");
-		exit(-1);
-	}
-	/*1st step: Compute the initial ideal*/
-	ideal initialForm=idInit(IDELEMS(gb),this->gcBasis->rank);	
-	computeInv( gb, initialForm, *fNormal );
-	ring srcRing=currRing;
-	ring tmpRing;
-	
-	const int64vec *intPointOfFacet;
-	intPointOfFacet=f->getInteriorPoint();
-	//Now we need two blocks of ringorder_a!
-	//May assume the same situation as in flip() here			
-	if( (srcRing->order[0]!=ringorder_a/*64*/) && (srcRing->order[1]!=ringorder_a/*64*/) )
-	{
-		int64vec *iv = new int64vec(this->numVars);//init with 1s, since we do not need a 2nd block here but later
-// 		int64vec *iv_foo = new int64vec(this->numVars,1);//placeholder
-		int64vec *ivw = ivNeg(const_cast<int64vec*>(fNormal));		
-		tmpRing=rCopyAndAddWeight2(srcRing,ivw/*intPointOfFacet*/,iv);
-		delete iv;delete ivw;
-// 		delete iv_foo;
-	}
-	else 
-	{
-		int64vec *iv=new int64vec(this->numVars);
-		int64vec *ivw=ivNeg(const_cast<int64vec*>(fNormal));
-		tmpRing=rCopyAndAddWeight2(srcRing,ivw,iv);
-		delete iv; delete ivw;
-		/*tmpRing=rCopy0(srcRing);
-		int length=fNormal->length();
-		int *A1=(int *)omAlloc0(length*sizeof(int));
-		int *A2=(int *)omAlloc0(length*sizeof(int));
-		for(int jj=0;jj<length;jj++)
-		{
-			A1[jj] = -(*fNormal)[jj];
-			A2[jj] = 1;//-(*fNormal)[jj];//NOTE Do we need this here? This is only the facet ideal
-		}
-		omFree(tmpRing->wvhdl[0]);
-		if(tmpRing->wvhdl[1]!=NULL)
-			omFree(tmpRing->wvhdl[1]);
-		tmpRing->wvhdl[0]=(int*)A1;		
-		tmpRing->block1[0]=length;
-		tmpRing->wvhdl[1]=(int*)A2;		
-		tmpRing->block1[1]=length;
-		rComplete(tmpRing);*/
-	}
-// 	delete fNormal; //NOTE Do not delete when using getRef2FacetNormal();
-	rChangeCurrRing(tmpRing);	
-	//Now currRing should have (a(),a(),dp,C)		
-	ideal ina;			
-	ina=idrCopyR(initialForm,srcRing);
-	idDelete(&initialForm);
-	ideal H;
-#ifdef gfanp
-	timeval t_kStd_start, t_kStd_end;
-	gettimeofday(&t_kStd_start,0);
-#endif
-	BITSET save=test;
-	test|=Sy_bit(OPT_REDSB);
-	test|=Sy_bit(OPT_REDTAIL);
-// 	if(gcone::hasHomInput==TRUE)
-		H=kStd(ina,NULL,testHomog/*isHomog*/,NULL/*,gcone::hilbertFunction*/);
-// 	else
-// 		H=kStd(ina,NULL,isNotHomog,NULL);	//This is \mathcal(G)_{>_-\alpha}(in_v(I))
-	test=save;
-#ifdef gfanp
-	gettimeofday(&t_kStd_end, 0);
-	t_kStd += (t_kStd_end.tv_sec - t_kStd_start.tv_sec + 1e-6*(t_kStd_end.tv_usec - t_kStd_start.tv_usec));
-#endif
-	idSkipZeroes(H);
-	idDelete(&ina);
-	
-	rChangeCurrRing(srcRing);
-	ideal srcRing_H;
-	ideal srcRing_HH;			
-	srcRing_H=idrCopyR(H,tmpRing);
-	//H is needed further below, so don't idDelete here
-	srcRing_HH=ffG(srcRing_H,this->gcBasis);
-	idDelete(&srcRing_H);
-	//Now BBA(srcRing_HH) with (a(),a(),dp)
-	/* Evil modification of currRing */
-	ring dstRing=rCopy0(tmpRing);
-	int length=this->numVars;
-	int *A1=(int *)omAlloc0(length*sizeof(int));
-	int *A2=(int *)omAlloc0(length*sizeof(int));
-	const int64vec *ivw=f->getRef2FacetNormal();
-	for(int jj=0;jj<length;jj++)
-	{
-		A1[jj] = (*intPointOfFacet)[jj];
-		A2[jj] = -(*ivw)[jj];//TODO Or minus (*ivw)[ii] ??? NOTE minus
-	}
-	omFree(dstRing->wvhdl[0]);
-	if(dstRing->wvhdl[1]!=NULL)
-		omFree(dstRing->wvhdl[1]);
-	dstRing->wvhdl[0]=(int*)A1;		
-	dstRing->block1[0]=length;
-	dstRing->wvhdl[1]=(int*)A2;		
-	dstRing->block1[1]=length;
-	rComplete(dstRing);
-	rChangeCurrRing(dstRing);
-	ideal dstRing_I;			
-	dstRing_I=idrCopyR(srcRing_HH,srcRing);
-	idDelete(&srcRing_HH); //Hmm.... causes trouble - no more	
-	save=test;
-	test|=Sy_bit(OPT_REDSB);
-	test|=Sy_bit(OPT_REDTAIL);
-	ideal tmpI;
-	tmpI = dstRing_I;
-#ifdef gfanp
-// 	timeval t_kStd_start, t_kStd_end;
-	gettimeofday(&t_kStd_start,0);
-#endif
-// 	if(gcone::hasHomInput==TRUE)
-// 		dstRing_I=kStd(tmpI,NULL,isHomog,NULL/*,gcone::hilbertFunction*/);
-// 	else
-		dstRing_I=kStd(tmpI,NULL,testHomog,NULL);
-#ifdef gfanp
-	gettimeofday(&t_kStd_end, 0);
-	t_kStd += (t_kStd_end.tv_sec - t_kStd_start.tv_sec + 1e-6*(t_kStd_end.tv_usec - t_kStd_start.tv_usec));
-#endif
-	idDelete(&tmpI);
-	idNorm(dstRing_I);			
-	idSkipZeroes(dstRing_I);
-	test=save;
-	/*End of step 3 - reduction*/
-	
-	f->setFlipGB(dstRing_I);
-	f->flipRing=rCopy(dstRing);
-	rDelete(tmpRing);
-	rDelete(dstRing);
-	//Now we should have dstRing with (a(),a(),dp,C)
-	//This must be replaced with (a(),dp,C) BEFORE gcTmp is actually added to the list
-	//of cones in noRevS
-	rChangeCurrRing(srcRing);
-#ifdef gfanp
-	gettimeofday(&end, 0);
-	time_flip2 += (end.tv_sec - start.tv_sec + 1e-6*(end.tv_usec - start.tv_usec));
-#endif
-}//flip2
-
-/** \brief Compute initial ideal
- * Compute the initial ideal in_v(G) wrt a (possible) facet normal
- * used in gcone::getFacetNormal in order to preprocess possible facet normals
- * and in gcone::flip for obvious reasons.
-*/
-/*inline*/ void gcone::computeInv(const ideal &gb, ideal &initialForm, const int64vec &fNormal)
-{
-#ifdef gfanp
-	timeval start, end;
-	gettimeofday(&start, 0);
-#endif
-	for (int ii=0;ii<IDELEMS(gb);ii++)
-	{
-		poly initialFormElement;
-		poly aktpoly = (poly)gb->m[ii];//Ptr, so don't pDelete(aktpoly)
-		int *leadExpV=(int *)omAlloc((this->numVars+1)*sizeof(int));
-		pGetExpV(aktpoly,leadExpV);	//find the leading exponent in leadExpV[1],...,leadExpV[n], use pNext(p)
-		initialFormElement=pHead(aktpoly);
-// 		int *v=(int *)omAlloc((this->numVars+1)*sizeof(int));
-		while(pNext(aktpoly)!=NULL)	/*loop trough terms and check for parallelity*/
-		{
-			int64vec *check = new int64vec(this->numVars);
-			aktpoly=pNext(aktpoly);	//next term
-			int *v=(int *)omAlloc((this->numVars+1)*sizeof(int));
-			pGetExpV(aktpoly,v);		
-			/* Convert (int)v into (int64vec)check */
-// 			bool notPar=FALSE;
-			for (int jj=0;jj<this->numVars;jj++)
-			{
-				(*check)[jj]=v[jj+1]-leadExpV[jj+1];
-// 				register int64 foo=(fNormal)[jj];
-// 				if( ( (*check)[jj]  == /*fNormal[jj]*/foo ) 
-// 				 || ( (/*fNormal[jj]*/foo!=0) && ( ( (*check)[jj] % /*fNormal[jj]*/foo ) !=0 ) ) ) 
-// 				{
-// 					notPar=TRUE;
-// 					break;
-// 				}
-			}
-			omFree(v);
-			if (isParallel(*check,fNormal))//Found a parallel vector. Add it
-//  			if(notPar==FALSE)
-			{
-				initialFormElement = pAdd((initialFormElement),(poly)pHead(aktpoly));//pAdd = p_Add_q destroys args
-			}
-			delete check;
-		}//while
-// 		omFree(v);
-#ifndef NDEBUG
-//  		cout << "Initial Form=";				
-//  		pWrite(initialFormElement[ii]);
-//  		cout << "---" << endl;
-#endif
-		/*Now initialFormElement must be added to (ideal)initialForm */
-		initialForm->m[ii]=pCopy(initialFormElement);
-		pDelete(&initialFormElement);
-		omFree(leadExpV);
-	}//for
-#ifdef gfanp
-	gettimeofday(&end, 0);
-	time_computeInv += (end.tv_sec - start.tv_sec + 1e-6*(end.tv_usec - start.tv_usec));
-#endif
-}
-
-/** \brief Compute the remainder of a polynomial by a given ideal
- *
- * Compute \f$ f^{\mathcal{G}} \f$
- * Algorithm is taken from Cox, Little, O'Shea, IVA 2nd Ed. p 62
- * However, since we are only interested in the remainder, there is no need to
- * compute the factors \f$ a_i \f$
- */
-//NOTE: Should be replaced by kNF or kNF2
-//NOTE: Done
-//NOTE: removed with r12286
-		
-/** \brief Compute \f$ f-f^{\mathcal{G}} \f$
-*/
-//NOTE: use kNF or kNF2 instead of restOfDivision
-inline ideal gcone::ffG(const ideal &H, const ideal &G)
-{
-	int size=IDELEMS(H);
-	ideal res=idInit(size,1);
-	for (int ii=0;ii<size;ii++)
-	{
-// 		poly temp1;//=pInit();
-// 		poly temp2;//=pInit();
-		poly temp3;//=pInit();//polys to temporarily store values for pSub
-// 		res->m[ii]=pCopy(kNF(G, NULL,H->m[ii],0,0));
-//  		temp1=pCopy(H->m[ii]);//TRY
-// 		temp2=pCopy(res->m[ii]);
-		//NOTE if gfanHeuristic=0 (sic!) this results in dPolyErrors - mon from wrong ring
-//  		temp2=pCopy(kNF(G, NULL,H->m[ii],0,0));//TRY
-//  		temp3=pSub(temp1, temp2);//TRY
-		temp3=pSub(pCopy(H->m[ii]),pCopy(kNF(G,NULL,H->m[ii],0,0)));//NOTRY
-		res->m[ii]=pCopy(temp3);
-		//res->m[ii]=pSub(temp1,temp2); //buggy		
-		//cout << "res->m["<<ii<<"]=";pWrite(res->m[ii]);
-// 		pDelete(&temp1);//TRY
-// 		pDelete(&temp2);
-		pDelete(&temp3);
-	}
-	return res;
-}
-	
-/** \brief Preprocessing of inequlities
-* Do some preprocessing on the matrix of inequalities
-* 1) Replace several constraints on the pos. orthants by just one for each orthant
-* 2) Remove duplicates of inequalities
-* 3) Remove inequalities that arise as sums of other inequalities
-*/
-void gcone::preprocessInequalities(dd_MatrixPtr &ddineq)
-{
-/*	int *posRowsArray=NULL;
-	int num_alloc=0;
-	int num_elts=0;
- 	int offset=0;*/
-	//Remove zeroes (and strictly pos rows?)
-	for(int ii=0;ii<ddineq->rowsize;ii++)
-	{
-		int64vec *iv = new int64vec(this->numVars);
-		int64vec *ivNull = new int64vec(this->numVars);//Needed for intvec64::compare(*int64vec)
-		int posCtr=0;
-		for(int jj=0;jj<this->numVars;jj++)
-		{
-			(*iv)[jj]=(int)mpq_get_d(ddineq->matrix[ii][jj+1]);
-			if((*iv)[jj]>0)//check for strictly pos rows
-				posCtr++;
-			//Behold! This will delete the row for the standard simplex!
-		}
-// 		if( (iv->compare(0)==0) || (posCtr==iv->length()) )
-		if( (posCtr==iv->length()) || (iv->compare(ivNull)==0) )		
-		{
-			dd_MatrixRowRemove(&ddineq,ii+1);
-			ii--;//Yes. This is on purpose
-		}
-		delete iv;
-		delete ivNull;
-	}
-	//Remove duplicates of rows
-// 	posRowsArray=NULL;
-// 	num_alloc=0;
-// 	num_elts=0;
-// 	offset=0;
-// 	int num_newRows = ddineq->rowsize;
-// 	for(int ii=0;ii<ddineq->rowsize-1;ii++)
-// 	for(int ii=0;ii<num_newRows-1;ii++)
-// 	{
-// 		int64vec *iv = new int64vec(this->numVars);//1st vector to check against
-// 		for(int jj=0;jj<this->numVars;jj++)
-// 			(*iv)[jj]=(int)mpq_get_d(ddineq->matrix[ii][jj+1]);
-// 		for(int jj=ii+1;jj</*ddineq->rowsize*/num_newRows;jj++)
-// 		{
-// 			int64vec *ivCheck = new int64vec(this->numVars);//Checked against iv
-// 			for(int kk=0;kk<this->numVars;kk++)
-// 				(*ivCheck)[kk]=(int)mpq_get_d(ddineq->matrix[jj][kk+1]);
-// 			if (iv->compare(ivCheck)==0)
-// 			{
-// // 				cout << "=" << endl;
-// // 				num_alloc++;
-// // 				void *tmp=realloc(posRowsArray,(num_alloc*sizeof(int)));
-// // 				if(!tmp)
-// // 				{
-// // 					WerrorS("Woah dude! Couldn't realloc memory\n");
-// // 					exit(-1);
-// // 				}
-// // 				posRowsArray = (int*)tmp;
-// // 				posRowsArray[num_elts]=jj;
-// // 				num_elts++;
-// 				dd_MatrixRowRemove(&ddineq,jj+1);
-// 				num_newRows = ddineq->rowsize;
-// 			}
-// 			delete ivCheck;
-// 		}
-// 		delete iv;
-// 	}
-// 	for(int ii=0;ii<num_elts;ii++)
-// 	{
-// 		dd_MatrixRowRemove(&ddineq,posRowsArray[ii]+1-offset);
-// 		offset++;
-// 	}
-// 	free(posRowsArray);
-	//Apply Thm 2.1 of JOTA Vol 53 No 1 April 1987*/	
-}//preprocessInequalities
-	
-/** \brief Compute a Groebner Basis
- *
- * Computes the Groebner basis and stores the result in gcone::gcBasis
- *\param ideal
- *\return void
- */
-inline void gcone::getGB(const ideal &inputIdeal)		
-{
-	BITSET save=test;
-	test|=Sy_bit(OPT_REDSB);
-	test|=Sy_bit(OPT_REDTAIL);
-	ideal gb;
-	gb=kStd(inputIdeal,NULL,testHomog,NULL);
-	idNorm(gb);
-	idSkipZeroes(gb);
-	this->gcBasis=gb;	//write the GB into gcBasis
-	test=save;
-}//void getGB
-		
-/** \brief Compute the negative of a given int64vec
-	*/		
-static int64vec* ivNeg(/*const*/int64vec *iv)
-{	//Hm, switching to int64vec const int64vec does no longer work
-	int64vec *res;// = new int64vec(iv->length());
-	res=iv64Copy(iv);
-	*res *= (int)-1;						
-	return res;
-}
-
-
-/** \brief Compute the dot product of two intvecs
-*
-*/
-static int dotProduct(const int64vec &iva, const int64vec &ivb)				
-{			
-	int res=0;	
-	for (int i=0;i<pVariables;i++)
-	{
-// #ifndef NDEBUG
-// 	(const_cast<int64vec*>(&iva))->show(1,0); (const_cast<int64vec*>(&ivb))->show(1,0);
-// #endif
-		res = res+(iva[i]*ivb[i]);
-	}
-	return res;
-}
-/** \brief Check whether two intvecs are parallel
- *
- * \f$ \alpha\parallel\beta\Leftrightarrow\langle\alpha,\beta\rangle^2=\langle\alpha,\alpha\rangle\langle\beta,\beta\rangle \f$
- */
-static bool isParallel(const int64vec &a,const int64vec &b)
-{	
-	bool res;
-	int lhs=dotProduct(a,b)*dotProduct(a,b);
-	int rhs=dotProduct(a,a)*dotProduct(b,b);
-	return res = (lhs==rhs)?TRUE:FALSE;
-}
-
-/** \brief Compute an interior point of a given cone
- * Result will be written into int64vec iv. 
- * Any rational point is automatically converted into an integer.
- */
-void gcone::interiorPoint( dd_MatrixPtr &M, int64vec &iv) //no const &M here since we want to remove redundant rows
-{
-	dd_LPPtr lp,lpInt;
-	dd_ErrorType err=dd_NoError;
-	dd_LPSolverType solver=dd_DualSimplex;
-	dd_LPSolutionPtr lpSol=NULL;
-// 	dd_rowset ddlinset,ddredrows;	//needed for dd_FindRelativeInterior
-//  	dd_rowindex ddnewpos;
-	dd_NumberType numb;	
-	//M->representation=dd_Inequality;
-			
-	//NOTE: Make this n-dimensional!
-	//dd_set_si(M->rowvec[0],1);dd_set_si(M->rowvec[1],1);dd_set_si(M->rowvec[2],1);
-									
-	/*NOTE: Leave the following line commented out!
-	* Otherwise it will slow down computations a great deal
-	* */
-// 	dd_MatrixCanonicalizeLinearity(&M, &ddlinset, &ddnewpos, &err);
-	//if (err!=dd_NoError){cout << "Error during dd_MatrixCanonicalize" << endl;}
-	dd_MatrixPtr posRestr=dd_CreateMatrix(this->numVars,this->numVars+1);
-	int jj=1;
-	for (int ii=0;ii<this->numVars;ii++)
-	{
-		dd_set_si(posRestr->matrix[ii][jj],1);
-		jj++;							
-	}
-	dd_MatrixAppendTo(&M,posRestr);
-	dd_FreeMatrix(posRestr);
-	lp=dd_Matrix2LP(M, &err);
-	if (err!=dd_NoError){WerrorS("Error during dd_Matrix2LP in gcone::interiorPoint");}
-	if (lp==NULL){WerrorS("LP is NULL");}
-#ifndef NDEBUG
-//			dd_WriteLP(stdout,lp);
-#endif	
-					
-	lpInt=dd_MakeLPforInteriorFinding(lp);
-	if (err!=dd_NoError){WerrorS("Error during dd_MakeLPForInteriorFinding in gcone::interiorPoint");}
-#ifndef NDEBUG
-// 			dd_WriteLP(stdout,lpInt);
-#endif			
-// 	dd_FindRelativeInterior(M,&ddlinset,&ddredrows,&lpSol,&err);
-	if (err!=dd_NoError)
-	{
-		WerrorS("Error during dd_FindRelativeInterior in gcone::interiorPoint");
-		dd_WriteErrorMessages(stdout, err);
-	}			
-	dd_LPSolve(lpInt,solver,&err);	//This will not result in a point from the relative interior
-// 	if (err!=dd_NoError){WerrorS("Error during dd_LPSolve");}									
-	lpSol=dd_CopyLPSolution(lpInt);
-// 	if (err!=dd_NoError){WerrorS("Error during dd_CopyLPSolution");}
-#ifndef NDEBUG
-	printf("Interior point: ");
-	for (int ii=1; ii<(lpSol->d)-1;ii++)
-	{
-		dd_WriteNumber(stdout,lpSol->sol[ii]);
-	}
-	printf("\n");
-#endif			
-	//NOTE The following strongly resembles parts of makeInt. 
-	//Maybe merge sometimes
-	mpz_t kgV; mpz_init(kgV);
-	mpz_set_str(kgV,"1",10);
-	mpz_t den; mpz_init(den);
-	mpz_t tmp; mpz_init(tmp);
-	mpq_get_den(tmp,lpSol->sol[1]);
-	for (int ii=1;ii<(lpSol->d)-1;ii++)
-	{
-		mpq_get_den(den,lpSol->sol[ii+1]);
-		mpz_lcm(kgV,tmp,den);
-		mpz_set(tmp, kgV);
-	}
-	mpq_t qkgV;
-	mpq_init(qkgV);
-	mpq_set_z(qkgV,kgV);
-	for (int ii=1;ii<(lpSol->d)-1;ii++)
-	{
-		mpq_t product;
-		mpq_init(product);
-		mpq_mul(product,qkgV,lpSol->sol[ii]);
-		iv[ii-1]=(int)mpz_get_d(mpq_numref(product));
-		mpq_clear(product);
-	}
-#ifndef NDEBUG
-// 			iv.show();
-// 			cout << endl;
-#endif
-	mpq_clear(qkgV);
-	mpz_clear(tmp);
-	mpz_clear(den);
-	mpz_clear(kgV);			
-			
-	dd_FreeLPSolution(lpSol);
-	dd_FreeLPData(lpInt);
-	dd_FreeLPData(lp);
-// 	set_free(ddlinset);
-// 	set_free(ddredrows); 	
-			
-}//void interiorPoint(dd_MatrixPtr const &M)
-
-/** Computes an interior point of a cone by taking two interior points a,b from two different facets
-* and then computing b+(a-b)/2
-* Of course this only works for flippable facets 
-* Two cases may occur: 
-* 1st: There are only two facets who share the only strictly positive ray
-* 2nd: There are at least two facets which have a distinct positive ray
-* In the former case we use linear algebra to determine an interior point,
-* in the latter case we simply add up the two rays
-*
-* Way too bad! The case may occur that the cone is spanned by three rays, of which only two are strictly
-* positive => these lie in a plane and thus their sum is not from relative interior.
-* So let's just sum up all rays, find one strictly positive and shift the point along that ray
-* 
-* Used by noRevS
-*NOTE no longer used nor maintained. MM Mar 9, 2010
-*/
-// void gcone::interiorPoint2()
-// {//idPrint(this->gcBasis);
-// #ifndef NDEBUG
-// 	if(this->ivIntPt!=NULL)
-// 		WarnS("Interior point already exists - ovrewriting!");
-// #endif
-// 	facet *f1 = this->facetPtr;
-// 	facet *f2 = NULL;
-// 	int64vec *intF1=NULL;
-// 	while(f1!=NULL)
-// 	{
-// 		if(f1->isFlippable)
-// 		{
-// 			facet *f1Ray = f1->codim2Ptr;
-// 			while(f1Ray!=NULL)
-// 			{
-// 				const int64vec *check=f1Ray->getRef2FacetNormal();
-// 				if(iv64isStrictlyPositive(check))
-// 				{
-// 					intF1=iv64Copy(check);
-// 					break;
-// 				}				
-// 				f1Ray=f1Ray->next;
-// 			}
-// 		}
-// 		if(intF1!=NULL)
-// 			break;
-// 		f1=f1->next;
-// 	}
-// 	if(f1!=NULL && f1->next!=NULL)//Choose another facet, different from f1
-// 		f2=f1->next;
-// 	else
-// 		f2=this->facetPtr;
-// 	if(intF1==NULL && hasHomInput==TRUE)
-// 	{
-// 		intF1 = new int64vec(this->numVars);
-// 		for(int ii=0;ii<this->numVars;ii++)
-// 			(*intF1)[ii]=1;
-// 	}
-// 	assert(f1); assert(f2);
-// 	int64vec *intF2=f2->getInteriorPoint();
-// 	mpq_t *qPosRay = new mpq_t[this->numVars];//The positive ray from above
-// 	mpq_t *qIntPt = new mpq_t[this->numVars];//starting vector a+((b-a)/2)
-// 	mpq_t *qPosIntPt = new mpq_t[this->numVars];//This should be >0 eventually
-// 	for(int ii=0;ii<this->numVars;ii++)
-// 	{
-// 		mpq_init(qPosRay[ii]);
-// 		mpq_init(qIntPt[ii]);
-// 		mpq_init(qPosIntPt[ii]);
-// 	}	
-// 	//Compute a+((b-a)/2) && Convert intF1 to mpq
-// 	for(int ii=0;ii<this->numVars;ii++)
-// 	{
-// 		mpq_t a,b;
-// 		mpq_init(a); mpq_init(b);
-// 		mpq_set_si(a,(*intF1)[ii],1);
-// 		mpq_set_si(b,(*intF2)[ii],1);
-// 		mpq_t diff;
-// 		mpq_init(diff);
-// 		mpq_sub(diff,b,a);	//diff=b-a
-// 		mpq_t quot;
-// 		mpq_init(quot);
-// 		mpq_div_2exp(quot,diff,1);	//quot=diff/2=(b-a)/2
-// 		mpq_clear(diff);
-// 		//Don't be clever and reuse diff here
-// 		mpq_t sum; mpq_init(sum);
-// 		mpq_add(sum,b,quot);	//sum=b+quot=a+(b-a)/2
-// 		mpq_set(qIntPt[ii],sum);
-// 		mpq_clear(sum);
-// 		mpq_clear(quot);
-// 		mpq_clear(a); mpq_clear(b);
-// 		//Now for intF1
-// 		mpq_set_si(qPosRay[ii],(*intF1)[ii],1);
-// 	}
-// 	//Now add: qPosIntPt=qPosRay+qIntPt until qPosIntPt >0
-// 	while(TRUE)
-// 	{	
-// 		bool success=FALSE;
-// 		int posCtr=0;	
-// 		for(int ii=0;ii<this->numVars;ii++)
-// 		{
-// 			mpq_t sum; mpq_init(sum);
-// 			mpq_add(sum,qPosRay[ii],qIntPt[ii]);
-// 			mpq_set(qPosIntPt[ii],sum);
-// 			mpq_clear(sum);
-// 			if(mpq_sgn(qPosIntPt[ii])==1)
-// 				posCtr++;
-// 		}
-// 		if(posCtr==this->numVars)//qPosIntPt > 0 
-// 			break;
-// 		else
-// 		{
-// 			mpq_t qTwo; mpq_init(qTwo);
-// 			mpq_set_ui(qTwo,2,1);
-// 			for(int jj=0;jj<this->numVars;jj++)
-// 			{
-// 				mpq_t tmp; mpq_init(tmp);
-// 				mpq_mul(tmp,qPosRay[jj],qTwo);
-// 				mpq_set( qPosRay[jj], tmp);
-// 				mpq_clear(tmp);
-// 			}
-// 			mpq_clear(qTwo);
-// 		}
-// 	}//while
-// 	//Now qPosIntPt ought to be >0, so convert back to int :D
-// 	/*Compute lcm of the denominators*/
-// 	mpz_t *denom = new mpz_t[this->numVars];
-// 	mpz_t tmp,kgV;
-// 	mpz_init(tmp); mpz_init(kgV);
-// 	for (int ii=0;ii<this->numVars;ii++)
-// 	{
-// 		mpz_t z;
-// 		mpz_init(z);
-// 		mpq_get_den(z,qPosIntPt[ii]);
-// 		mpz_init(denom[ii]);
-// 		mpz_set( denom[ii], z);
-// 		mpz_clear(z);				
-// 	}
-// 		
-// 	mpz_set(tmp,denom[0]);
-// 	for (int ii=0;ii<this->numVars;ii++)
-// 	{
-// 		mpz_lcm(kgV,tmp,denom[ii]);
-// 		mpz_set(tmp,kgV);				
-// 	}
-// 	mpz_clear(tmp);	
-// 	/*Multiply the nominators by kgV*/
-// 	mpq_t qkgV,res;
-// 	mpq_init(qkgV);
-// 	mpq_canonicalize(qkgV);		
-// 	mpq_init(res);
-// 	mpq_canonicalize(res);
-// 				
-// 	mpq_set_num(qkgV,kgV);
-// 	int64vec *n=new int64vec(this->numVars);
-// 	for (int ii=0;ii<this->numVars;ii++)
-// 	{
-// 		mpq_canonicalize(qPosIntPt[ii]);
-// 		mpq_mul(res,qkgV,qPosIntPt[ii]);
-// 		(*n)[ii]=(int)mpz_get_d(mpq_numref(res));
-// 	}
-// 	this->setIntPoint(n);
-// 	delete n;
-// 	delete [] qPosIntPt;
-// 	delete [] denom;
-// 	delete [] qPosRay;
-// 	delete [] qIntPt;
-// 	mpz_clear(kgV);
-// 	mpq_clear(qkgV); mpq_clear(res);
-// }
-	
-/** \brief Copy a ring and add a weighted ordering in first place
- * 
- */
-ring gcone::rCopyAndAddWeight(const ring &r, int64vec *ivw)				
-{
-	ring res=rCopy0(r);
-	int jj;
-			
-	omFree(res->order);
-	res->order =(int *)omAlloc0(4*sizeof(int/*64*/));
-	omFree(res->block0);
-	res->block0=(int *)omAlloc0(4*sizeof(int/*64*/));
-	omFree(res->block1);
-	res->block1=(int *)omAlloc0(4*sizeof(int/*64*/));
-	omfree(res->wvhdl);
-	res->wvhdl =(int **)omAlloc0(4*sizeof(int/*64*/**));
-			
-	res->order[0]=ringorder_a/*64*/;
-	res->block0[0]=1;
-	res->block1[0]=res->N;
-	res->order[1]=ringorder_dp;	//basically useless, since that should never be used			
-	res->block0[1]=1;
-	res->block1[1]=res->N;
-	res->order[2]=ringorder_C;
-
-	int length=ivw->length();
-	int/*64*/ *A=(int/*64*/ *)omAlloc0(length*sizeof(int/*64*/));
-	for (jj=0;jj<length;jj++)
-	{				
-		A[jj]=(*ivw)[jj];
-		if((*ivw)[jj]>=INT_MAX) WarnS("A[jj] exceeds INT_MAX in gcone::rCopyAndAddWeight!\n");
-	}			
-	res->wvhdl[0]=(int *)A;
-	res->block1[0]=length;
-			
-	rComplete(res);
-	return res;
-}//rCopyAndAdd
-		
-ring gcone::rCopyAndAddWeight2(const ring &r,const int64vec *ivw, const int64vec *fNormal)				
-{
-	ring res=rCopy0(r);
-			
-	omFree(res->order);
-	res->order =(int *)omAlloc0(5*sizeof(int/*64*/));
-	omFree(res->block0);
-	res->block0=(int *)omAlloc0(5*sizeof(int/*64*/));
-	omFree(res->block1);
-	res->block1=(int *)omAlloc0(5*sizeof(int/*64*/));
-	omfree(res->wvhdl);
-	res->wvhdl =(int **)omAlloc0(5*sizeof(int/*64*/**));
-			
-	res->order[0]=ringorder_a/*64*/;
-	res->block0[0]=1;
-	res->block1[0]=res->N;
-	res->order[1]=ringorder_a/*64*/;
-	res->block0[1]=1;
-	res->block1[1]=res->N;
-	
-	res->order[2]=ringorder_dp;
-	res->block0[2]=1;
-	res->block1[2]=res->N;
-	
-	res->order[3]=ringorder_C;
-
-	int length=ivw->length();
-	int/*64*/ *A1=(int/*64*/ *)omAlloc0(length*sizeof(int/*64*/));
-	int/*64*/ *A2=(int/*64*/ *)omAlloc0(length*sizeof(int/*64*/));
-	for (int jj=0;jj<length;jj++)
-	{				
-		A1[jj]=(*ivw)[jj];
-		A2[jj]=-(*fNormal)[jj];
-		if((*ivw)[jj]>=INT_MAX || (*fNormal)[jj]>=INT_MAX) WarnS("A[jj] exceeds INT_MAX in gcone::rCopyAndAddWeight2!\n");
-	}			
-	res->wvhdl[0]=(int *)A1;
-	res->block1[0]=length;
-	res->wvhdl[1]=(int *)A2;
-	res->block1[1]=length;
-	rComplete(res);
-	return res;
-}
-		
-//NOTE not needed anywhere
-// ring rCopyAndChangeWeight(ring const &r, int64vec *ivw)
-// {
-// 	ring res=rCopy0(currRing);
-// 	rComplete(res);
-// 	rSetWeightVec(res,(int64*)ivw);
-// 	//rChangeCurrRing(rnew);
-// 	return res;
-// }
-		
-/** \brief Checks whether a given facet is a search facet
- * Determines whether a given facet of a cone is the search facet of a neighbouring cone
- * This is done in the following way:
- * We loop through all facets of the cone and find the "smallest" facet, i.e. the unique facet
- * that is first crossed during the generic walk.
- * We then check whether the fNormal of this facet is parallel to the fNormal of our testfacet.
- * If this is the case, then our facet is indeed a search facet and TRUE is retuned. 
-*/
-//removed with r12286
-		
-/** \brief Check for equality of two intvecs
- */
-static bool ivAreEqual(const int64vec &a, const int64vec &b)
-{
-	bool res=TRUE;
-	for(int ii=0;ii<pVariables;ii++)
-	{
-		if(a[ii]!=b[ii])
-		{
-			res=FALSE;
-			break;
-		}
-	}
-	return res;
-}
-		
-/** \brief The reverse search algorithm
- */
-//removed with r12286
-/** \brief Compute the lineality/homogeneity space
-* It is the kernel of the inequality matrix Ax=0
-* As a result gcone::dd_LinealitySpace is set
-*/
-dd_MatrixPtr gcone::computeLinealitySpace()
-{
-	dd_MatrixPtr res;
-	dd_MatrixPtr ddineq;
-	ddineq=dd_CopyMatrix(this->ddFacets);	
-	//Add a row of 0s in 0th place
-	dd_MatrixPtr ddAppendRowOfZeroes=dd_CreateMatrix(1,this->numVars+1);
-	dd_MatrixPtr ddFoo=dd_AppendMatrix(ddAppendRowOfZeroes,ddineq);
-	dd_FreeMatrix(ddAppendRowOfZeroes);
-	dd_FreeMatrix(ddineq);
-	ddineq=dd_CopyMatrix(ddFoo);
-	dd_FreeMatrix(ddFoo);
-	//Cohen starts here
-	int dimKer=0;//Cohen calls this r
-	int m=ddineq->rowsize;//Rows
-	int n=ddineq->colsize;//Cols
-	int c[m+1];
-	int d[n+1];
-	for(int ii=0;ii<m;ii++)
-		c[ii]=0;
-	for(int ii=0;ii<n;ii++)
-		d[ii]=0;	
-	
-	for(int k=1;k<n;k++)
-	{
-		//Let's find a j s.t. m[j][k]!=0 && c[j]=0		
-		int condCtr=0;//Check each row for zeroness
-		for(int j=1;j<m;j++)
-		{
-			if(mpq_sgn(ddineq->matrix[j][k])!=0 && c[j]==0)
-			{
-				mpq_t quot; mpq_init(quot);
-				mpq_t one; mpq_init(one); mpq_set_str(one,"-1",10);
-				mpq_t ratd; mpq_init(ratd);
-				if((int)mpq_get_d(ddineq->matrix[j][k])!=0)
-					mpq_div(quot,one,ddineq->matrix[j][k]);
-				mpq_set(ratd,quot);
-				mpq_canonicalize(ratd);
-		
-				mpq_set_str(ddineq->matrix[j][k],"-1",10);
-				for(int ss=k+1;ss<n;ss++)
-				{
-					mpq_t prod; mpq_init(prod);
-					mpq_mul(prod, ratd, ddineq->matrix[j][ss]);				
-					mpq_set(ddineq->matrix[j][ss],prod);
-					mpq_canonicalize(ddineq->matrix[j][ss]);
-					mpq_clear(prod);
-				}		
-				for(int ii=1;ii<m;ii++)
-				{
-					if(ii!=j)
-					{
-						mpq_set(ratd,ddineq->matrix[ii][k]);
-						mpq_set_str(ddineq->matrix[ii][k],"0",10);			
-						for(int ss=k+1;ss<n;ss++)
-						{
-							mpq_t prod; mpq_init(prod);
-							mpq_mul(prod, ratd, ddineq->matrix[j][ss]);
-							mpq_t sum; mpq_init(sum);
-							mpq_add(sum, ddineq->matrix[ii][ss], prod);
-							mpq_set(ddineq->matrix[ii][ss],	sum);
-							mpq_canonicalize(ddineq->matrix[ii][ss]);
-							mpq_clear(prod);
-							mpq_clear(sum);
-						}
-					}
-				}
-				c[j]=k;		
-				d[k]=j;
-				mpq_clear(quot); mpq_clear(ratd); mpq_clear(one);	
-			}
-			else
-				condCtr++;
-		}			
-		if(condCtr==m-1)	//Why -1 ???
-		{
-			dimKer++;
-			d[k]=0;
-// 			break;//goto _4;
-		}//else{
-		/*Eliminate*/
-	}//for(k
-	/*Output kernel, i.e. set gcone::dd_LinealitySpace here*/	
-// 	gcone::dd_LinealitySpace = dd_CreateMatrix(dimKer,this->numVars+1);
-	res = dd_CreateMatrix(dimKer,this->numVars+1);
-	int row=-1;
-	for(int kk=1;kk<n;kk++)
-	{
-		if(d[kk]==0)
-		{
-			row++;
-			for(int ii=1;ii<n;ii++)
-			{
-				if(d[ii]>0)
-					mpq_set(res->matrix[row][ii],ddineq->matrix[d[ii]][kk]);
-				else if(ii==kk)				
-					mpq_set_str(res->matrix[row][ii],"1",10);
-				mpq_canonicalize(res->matrix[row][ii]);
-			}
-		}
-	}
-	dd_FreeMatrix(ddineq);
-	return(res);
-	//Better safe than sorry:
-	//NOTE dd_LinealitySpace contains RATIONAL ENTRIES
-	//Therefore if you need integer ones: CALL gcone::makeInt(...) method
-}	
-
-
-/** \brief The new method of Markwig and Jensen
- * Compute gcBasis and facets for the arbitrary starting cone. Store \f$(codim-1)\f$-facets as normals.
- * In order to represent a facet uniquely compute also the \f$(codim-2)\f$-facets and norm by the gcd of the components.
- * Keep a list of facets as a linked list containing an int64vec and an integer matrix.
- * Since a \f$(codim-1)\f$-facet belongs to exactly two full dimensional cones, we remove a facet from the list as
- * soon as we compute this facet again. Comparison of facets is done by...
- */
-void gcone::noRevS(gcone &gcRoot, bool usingIntPoint)
-{	
-	facet *SearchListRoot = new facet(); //The list containing ALL facets we come across
-	facet *SearchListAct;
-	SearchListAct = NULL;
-	//SearchListAct = SearchListRoot;			
-	gcone *gcAct;
-	gcAct = &gcRoot;
-	gcone *gcPtr;	//Pointer to end of linked list of cones
-	gcPtr = &gcRoot;
-	gcone *gcNext;	//Pointer to next cone to be visited
-	gcNext = &gcRoot;
-	gcone *gcHead;
-	gcHead = &gcRoot;			
-	facet *fAct;
-	fAct = gcAct->facetPtr;				
-	ring rAct;
-	rAct = currRing;
-	int UCNcounter=gcAct->getUCN();	
-#ifndef NDEBUG
-	printf("NoRevs\n");
-	printf("Facets are:\n");
-	gcAct->showFacets();
-#endif			
-	/*Compute lineality space here
-	* Afterwards static dd_MatrixPtr gcone::dd_LinealitySpace is set*/
-	if(dd_LinealitySpace==NULL)
-		dd_LinealitySpace = gcAct->computeLinealitySpace();
-	/*End of lineality space computation*/		
-	//gcAct->getCodim2Normals(*gcAct);
-	if(fAct->codim2Ptr==NULL)
-		gcAct->getExtremalRays(*gcAct);		
-	/* Make a copy of the facet list of first cone
-	   Since the operations getCodim2Normals and normalize affect the facets
-	   we must not memcpy them before these ops! */	
-	/*facet *codim2Act; codim2Act = NULL;			
-	facet *sl2Root;
-	facet *sl2Act;*/			
-	for(int ii=0;ii<this->numFacets;ii++)
-	{
-		//only copy flippable facets! NOTE: We do not need flipRing or any such information.
-		if(fAct->isFlippable==TRUE)
-		{
-			/*Using shallow copy here*/
-#ifdef SHALLOW
-			if( ii==0 || (ii>0 && SearchListAct==NULL) ) //1st facet may be non-flippable
-			{
-				if(SearchListRoot!=NULL) delete(SearchListRoot);
-				SearchListRoot = fAct->shallowCopy(*fAct);
-				SearchListAct = SearchListRoot;	//SearchListRoot is already 'new'ed at beginning of method!
-			}
-			else
-			{			
-				SearchListAct->next = fAct->shallowCopy(*fAct);
-				SearchListAct = SearchListAct->next;						
-			}
-			fAct=fAct->next;
-#else
-			/*End of shallow copy*/
-			int64vec *fNormal;
-			fNormal = fAct->getFacetNormal();
-			if( ii==0 || (ii>0 && SearchListAct==NULL) ) //1st facet may be non-flippable
-			{						
-				SearchListAct = SearchListRoot;	//SearchListRoot is already 'new'ed at beginning of method!
-			}
-			else
-			{			
-				SearchListAct->next = new facet();
-				SearchListAct = SearchListAct->next;						
-			}
-			SearchListAct->setFacetNormal(fNormal);
-			SearchListAct->setUCN(this->getUCN());
-			SearchListAct->numCodim2Facets=fAct->numCodim2Facets;
-			SearchListAct->isFlippable=TRUE;
-			//Copy int point as well
-			int64vec *ivIntPt;
-			ivIntPt = fAct->getInteriorPoint();
-			SearchListAct->setInteriorPoint(ivIntPt);
-			delete(ivIntPt);
-			//Copy codim2-facets
-			facet *codim2Act;
-			codim2Act = NULL;			
-			facet *sl2Root;
-			facet *sl2Act;			
-			codim2Act=fAct->codim2Ptr;
-			SearchListAct->codim2Ptr = new facet(2);
-			sl2Root = SearchListAct->codim2Ptr;
-			sl2Act = sl2Root;			
-			for(int jj=0;jj<fAct->numCodim2Facets;jj++)
-// 			for(int jj=0;jj<fAct->numRays-1;jj++)
-			{
-				int64vec *f2Normal;
-				f2Normal = codim2Act->getFacetNormal();
-				if(jj==0)
-				{						
-					sl2Act = sl2Root;
-					sl2Act->setFacetNormal(f2Normal);
-				}
-				else
-				{
-					sl2Act->next = new facet(2);
-					sl2Act = sl2Act->next;
-					sl2Act->setFacetNormal(f2Normal);
-				}
-				delete f2Normal;				
-				codim2Act = codim2Act->next;
-			}
-			fAct = fAct->next;
-			delete fNormal;
-#endif
-		}//if(fAct->isFlippable==TRUE)			
-		else {fAct = fAct->next;}
-	}//End of copying facets into SLA
-	
-	SearchListAct = SearchListRoot;	//Set to beginning of list
-	/*Make SearchList doubly linked*/
-#ifndef NDEBUG
-  #if SIZEOF_LONG==8
-	while(SearchListAct!=(facet*)0xfefefefefefefefe && SearchListAct!=NULL)
-	{
-		if(SearchListAct->next!=(facet*)0xfefefefefefefefe && SearchListAct->next!=NULL){
-  #elif SIZEOF_LONG!=8
-	while(SearchListAct!=(facet*)0xfefefefe)
-	{
-		if(SearchListAct->next!=(facet*)0xfefefefe){
-  #endif
-#else
-	while(SearchListAct!=NULL)
-	{
-		if(SearchListAct->next!=NULL){
-#endif
-			SearchListAct->next->prev = SearchListAct;					
-		}
-		SearchListAct = SearchListAct->next;
-	}
-	SearchListAct = SearchListRoot;	//Set to beginning of List
-	
-// 	fAct = gcAct->facetPtr;//???
-	gcAct->writeConeToFile(*gcAct);			
-	/*End of initialisation*/
-	
-	fAct = SearchListAct;
-	/*2nd step
-	  Choose a facet from SearchList, flip it and forget the previous cone
-	  We always choose the first facet from SearchList as facet to be flipped
-	*/	
-	while( (SearchListAct!=NULL))//&& counter<490)
-	{//NOTE See to it that the cone is only changed after ALL facets have been flipped!				
-		fAct = SearchListAct;		
- 		while(fAct!=NULL)
-// 		while( (fAct->getUCN() == fAct->next->getUCN()) )		
-		{	//Since SLA should only contain flippables there should be no need to check for that			
-			gcAct->flip2(gcAct->gcBasis,fAct);
-			//NOTE rCopy needed?
-			ring rTmp=rCopy(fAct->flipRing);
-			rComplete(rTmp);
-			rChangeCurrRing(rTmp);
-			gcone *gcTmp = new gcone(*gcAct,*fAct);//copy constructor!
-			/* Now gcTmp->gcBasis and gcTmp->baseRing are set from fAct->flipGB and fAct->flipRing.
-			 * Since we come at most once across a given facet from gcAct->facetPtr we can delete them.
-			 * NOTE: Can this cause trouble with the destructor?
-			 * Answer: Yes it bloody well does!
-			 * However I'd like to delete this data here, since if we have a cone with many many facets it
-			 * should pay to get rid of the flipGB as soon as possible.
-			 * Destructor must be equipped with necessary checks.
-			*/
- 			idDelete((ideal *)&fAct->flipGB);
-			rDelete(fAct->flipRing);			
-			gcTmp->getConeNormals(gcTmp->gcBasis/*, FALSE*/);
-// 			gcTmp->getCodim2Normals(*gcTmp);
-			gcTmp->getExtremalRays(*gcTmp);
-			//NOTE Order rays lex here
-			gcTmp->orderRays();			
-// 			//NOTE If flip2 is used we need to get an interior point of gcTmp
-// 			// and replace gcTmp->baseRing with an appropriate ring with only
-// 			// one weight
-// 			gcTmp->interiorPoint2();
-			gcTmp->replaceDouble_ringorder_a_ByASingleOne();
-			//gcTmp->ddFacets should not be needed anymore, so
-			dd_FreeMatrix(gcTmp->ddFacets);
-#ifndef NDEBUG
-// 			gcTmp->showFacets(1);
-#endif
-			/*add facets to SLA here*/
-#ifdef SHALLOW
-  #ifndef NDEBUG
-			printf("fActUCN before enq2: %i\n",fAct->getUCN());
-  #endif
-			facet *tmp;
-			tmp=gcTmp->enqueue2(SearchListRoot);
-  #ifndef NDEBUG
-			printf("\nheadUCN=%i\n",tmp->getUCN());
-			printf("fActUCN after enq2: %i\n",fAct->getUCN());
-  #endif
-			SearchListRoot=tmp;
-			//SearchListRoot=gcTmp->enqueue2/*NewFacets*/(SearchListRoot);
-#else 
-			SearchListRoot=gcTmp->enqueueNewFacets(SearchListRoot);
-#endif //ifdef SHALLOW
-// 			gcTmp->writeConeToFile(*gcTmp);
- 			if(gfanHeuristic==1)
- 			{
-				gcTmp->writeConeToFile(*gcTmp);
- 				idDelete((ideal*)&gcTmp->gcBasis);//Whonder why?
-				rDelete(gcTmp->baseRing);
- 			}			
-#ifndef NDEBUG
-			if(SearchListRoot!=NULL)
-				showSLA(*SearchListRoot);
-#endif			
-			rChangeCurrRing(gcAct->baseRing);
-			rDelete(rTmp);
-			//doubly linked for easier removal
-			gcTmp->prev = gcPtr;
-			gcPtr->next=gcTmp;
-			gcPtr=gcPtr->next;
-			//Cleverly disguised exit condition follows
-			if(fAct->getUCN() == fAct->next->getUCN())
-			{
-				printf("Switching UCN from %i to %i\n",fAct->getUCN(),fAct->next->getUCN());
-				fAct=fAct->next;				
-			}
-			else
-			{
-				//rDelete(gcAct->baseRing);
-// 				printf("break\n");
-				break;
-			}
-// 			fAct=fAct->next;
-		}//while( ( (fAct->next!=NULL) && (fAct->getUCN()==fAct->next->getUCN() ) ) );		
-		//Search for cone with smallest UCN
-#ifndef NDEBUG
-  #if SIZEOF_LONG==8	//64 bit
-		while(gcNext!=(gcone * const)0xfbfbfbfbfbfbfbfb && SearchListRoot!=NULL)
-  #elif SIZEOF_LONG == 4
-		while(gcNext!=(gcone * const)0xfbfbfbfb && SearchListRoot!=NULL)
-  #endif
-#endif
-#ifdef NDEBUG
-		while(gcNext!=NULL && SearchListRoot!=NULL)	
-#endif
-		{			
-			if( gcNext->getUCN() == SearchListRoot->getUCN() )
-			{
-				if(gfanHeuristic==0)
-				{
-					gcAct = gcNext;
-					//Seems better to not to use rCopy here
-// 					rAct=rCopy(gcAct->baseRing);
-					rAct=gcAct->baseRing;
-					rComplete(rAct);
-					rChangeCurrRing(rAct);						
-					break;
-				}
-				else if(gfanHeuristic==1)
-				{
-					gcone *gcDel;
-					gcDel = gcAct;					
-					gcAct = gcNext;
-					//Read st00f from file &
-					//implant the GB into gcAct
-					readConeFromFile(gcAct->getUCN(), gcAct);
-					//Kill the baseRing but ONLY if it is not the ring the computation started in!
-// 					if(gcDel->getUCN()!=1)//WTF!? This causes the Mandelbug in gcone::areEqual(facet, facet)
-// 						rDelete(gcDel->baseRing);
-// 					rAct=rCopy(gcAct->baseRing);
-					/*The ring change occurs in readConeFromFile, so as to 
-					assure that gcAct->gcBasis belongs to the right ring*/
-					rAct=gcAct->baseRing;
-					rComplete(rAct);
-					rChangeCurrRing(rAct);
-					break;
-				}				
-			}
-			else if(gcNext->getUCN() < SearchListRoot->getUCN() )
-			{
-				idDelete( (ideal*)&gcNext->gcBasis );				
-// 				rDelete(gcNext->baseRing);//TODO Why does this crash?
-			}
-			/*else
-			{
-				if(gfanHeuristic==1)
-				{
-					gcone *gcDel;
-					gcDel = gcNext;
-					if(gcDel->getUCN()!=1)
-						rDelete(gcDel->baseRing);
-				}					
-			}*/			
- 			gcNext = gcNext->next;
-		}
-		UCNcounter++;
-		SearchListAct = SearchListRoot;		
-	}
-	printf("\nFound %i cones - terminating\n", counter);
-}//void noRevS(gcone &gc)	
-		
-		
-/** \brief Make a set of rational vectors into integers
- *
- * We compute the lcm of the denominators and multiply with this to get integer values.
- * If the gcd of the nominators > 1 we divide by the gcd => primitive vector.
- * Expects a new int64vec as 3rd parameter
- * \param dd_MatrixPtr,int64vec
- */
-void gcone::makeInt(const dd_MatrixPtr &M, const int line, int64vec &n)
-{			
-	mpz_t *denom = new mpz_t[this->numVars];
-	for(int ii=0;ii<this->numVars;ii++)
-	{
-		mpz_init_set_str(denom[ii],"0",10);
-	}
-		
-	mpz_t kgV,tmp;
-	mpz_init(kgV);
-	mpz_init(tmp);
-			
-	for (int ii=0;ii<(M->colsize)-1;ii++)
-	{
-		mpz_t z;
-		mpz_init(z);
-		mpq_get_den(z,M->matrix[line-1][ii+1]);
-		mpz_set( denom[ii], z);
-		mpz_clear(z);				
-	}
-						
-	/*Compute lcm of the denominators*/
-	mpz_set(tmp,denom[0]);
-	for (int ii=0;ii<(M->colsize)-1;ii++)
-	{
-		mpz_lcm(kgV,tmp,denom[ii]);
-		mpz_set(tmp,kgV);				
-	}
-	mpz_clear(tmp);	
-	/*Multiply the nominators by kgV*/
-	mpq_t qkgV,res;
-	mpq_init(qkgV);
-	mpq_set_str(qkgV,"1",10);
-	mpq_canonicalize(qkgV);
-			
-	mpq_init(res);
-	mpq_set_str(res,"1",10);
-	mpq_canonicalize(res);
-			
-	mpq_set_num(qkgV,kgV);
-			
-//	mpq_canonicalize(qkgV);
-// 	int ggT=1;
-	for (int ii=0;ii<(M->colsize)-1;ii++)
-	{
-		mpq_mul(res,qkgV,M->matrix[line-1][ii+1]);
-		n[ii]=(int64)mpz_get_d(mpq_numref(res));
-// 		ggT=int64gcd(ggT,n[ii]);
-	}
-	int64 ggT=n[0];
-	for(int ii=0;ii<this->numVars;ii++)
-		ggT=int64gcd(ggT,n[ii]);	
-	//Normalisation
-	if(ggT>1)
-	{
-		for(int ii=0;ii<this->numVars;ii++)
-			n[ii] /= ggT;
-	}
-	delete [] denom;
-	mpz_clear(kgV);
-	mpq_clear(qkgV); mpq_clear(res);			
-			
-}
-/**
- * For all codim-2-facets we compute the gcd of the components of the facet normal and 
- * divide it out. Thus we get a normalized representation of each
- * (codim-2)-facet normal, i.e. a primitive vector
- * Actually we now also normalize the facet normals.
- */
-// void gcone::normalize()
-// {
-// 	int *ggT = new int;
-// 		*ggT=1;
-// 	facet *fAct;
-// 	facet *codim2Act;
-// 	fAct = this->facetPtr;
-// 	codim2Act = fAct->codim2Ptr;
-// 	while(fAct!=NULL)
-// 	{
-// 		int64vec *fNormal;
-// 		fNormal = fAct->getFacetNormal();
-// 		int *ggT = new int;
-// 		*ggT=1;
-// 		for(int ii=0;ii<this->numVars;ii++)
-// 		{
-// 			*ggT=intgcd((*ggT),(*fNormal)[ii]);
-// 		}
-// 		if(*ggT>1)//We only need to do this if the ggT is non-trivial
-// 		{
-// // 			int64vec *fCopy = fAct->getFacetNormal();
-// 			for(int ii=0;ii<this->numVars;ii++)
-// 				(*fNormal)[ii] = ((*fNormal)[ii])/(*ggT);
-// 			fAct->setFacetNormal(fNormal);
-// 		}		
-// 		delete fNormal;
-// 		delete ggT;
-// 		/*And now for the codim2*/
-// 		while(codim2Act!=NULL)
-// 		{				
-// 			int64vec *n;
-// 			n=codim2Act->getFacetNormal();
-// 			int *ggT=new int;
-// 			*ggT=1;
-// 			for(int ii=0;ii<this->numVars;ii++)
-// 			{
-// 				*ggT = intgcd((*ggT),(*n)[ii]);
-// 			}
-// 			if(*ggT>1)
-// 			{
-// 				for(int ii=0;ii<this->numVars;ii++)
-// 				{
-// 					(*n)[ii] = ((*n)[ii])/(*ggT);
-// 				}
-// 				codim2Act->setFacetNormal(n);
-// 			}
-// 			codim2Act = codim2Act->next;
-// 			delete n;
-// 			delete ggT;
-// 		}
-// 		fAct = fAct->next;
-// 	}
-// }
-
-/** \brief Enqueue new facets into the searchlist 
- * The searchlist (SLA for short) is implemented as a FIFO
- * Checks are done as follows:
- * 1) Check facet fAct against all facets in SLA for parallelity. If it is not parallel to any one add it.
- * 2) If it is parallel compare the codim2 facets. If they coincide the facets are equal and we delete the 
- *	facet from SLA and do not add fAct.
- * It may very well happen, that SLA=\f$ \emptyset \f$ but we do not have checked all fActs yet. In this case we
- * can be sure, that none of the facets that are still there already were in SLA once, so we just dump them into SLA.
- * Takes ptr to search list root
- * Returns a pointer to new first element of Searchlist
- */
-facet * gcone::enqueueNewFacets(facet *f)
-{
-#ifdef gfanp
-	timeval start, end;
-	gettimeofday(&start, 0);
-#endif
-	facet *slHead;
-	slHead = f;
-	facet *slAct;	//called with f=SearchListRoot
-	slAct = f;
-	facet *slEnd;	//Pointer to end of SLA
-	slEnd = f;
-// 	facet *slEndStatic;	//marks the end before a new facet is added		
-	facet *fAct;
-	fAct = this->facetPtr;
-	facet *codim2Act;
-	codim2Act = this->facetPtr->codim2Ptr;
-	facet *sl2Act;
-	sl2Act = f->codim2Ptr;
-	/** Pointer to a facet that will be deleted */
-	volatile facet *deleteMarker;
-	deleteMarker = NULL;
-			
-	/** \brief  Flag to mark a facet that might be added
-	 * The following case may occur:
-	 * A facet fAct is found to be parallel but not equal to the current facet slAct from SLA.
-	 * This does however not mean that there does not exist a facet behind the current slAct that is actually equal
-	 * to fAct. In this case we set the boolean flag maybe to TRUE. If we encounter an equality lateron, it is reset to
-	 * FALSE and the according slAct is deleted. 
-	 * If slAct->next==NULL AND maybe==TRUE we know, that fAct must be added
-	 */
-
-	/**A facet was removed, lengthOfSearchlist-- thus we must not rely on 
-	 * if(notParallelCtr==lengthOfSearchList) but rather
-	 * if( (notParallelCtr==lengthOfSearchList && removalOccured==FALSE)
-	 */
-	volatile bool removalOccured=FALSE;
-	while(slEnd->next!=NULL)
-	{
-		slEnd=slEnd->next;
-	}
-	/*1st step: compare facetNormals*/			
-	while(fAct!=NULL)
-	{						
-		if(fAct->isFlippable==TRUE)
-		{
-			int64vec *fNormal=NULL;
-			fNormal=fAct->getFacetNormal();			
-			slAct = slHead;
-			/*If slAct==NULL and fAct!=NULL 
-			we just copy all remaining facets into SLA*/
-			if(slAct==NULL)
-			{
-				facet *fCopy;
-				fCopy = fAct;
-				while(fCopy!=NULL)
-				{
-					if(fCopy->isFlippable==TRUE)//We must assure fCopy is also flippable
-					{
-						if(slAct==NULL)
-						{
-							slAct = new facet(*fCopy/*,TRUE*/);//copy constructor
-							slHead = slAct;								
-						}
-						else
-						{
-							slAct->next = new facet(*fCopy/*,TRUE*/);
-							slAct = slAct->next;
-						}
-					}
-					fCopy = fCopy->next;
-				}
-				break;//Where does this lead to?
-			}
-			/*End of dumping into SLA*/
-			while(slAct!=NULL)
-			{
-				int64vec *slNormal=NULL;
-				removalOccured=FALSE;
-				slNormal = slAct->getFacetNormal();
-#ifndef NDEBUG
-				printf("Checking facet (");fNormal->show(1,1);printf(") against (");slNormal->show(1,1);printf(")\n");
-#endif				
-// 				if( (areEqual(fAct,slAct) && (!areEqual2(fAct,slAct)) ))
-// 					exit(-1);
- 				if(areEqual2(fAct,slAct))
-				{					
-					deleteMarker = slAct;
-					if(slAct==slHead)
-					{						
-						slHead = slAct->next;						
-						if(slHead!=NULL)
-							slHead->prev = NULL;
-					}
-					else if (slAct==slEnd)
-					{
-						slEnd=slEnd->prev;
-						slEnd->next = NULL;
-					}								
-					else
-					{
-						slAct->prev->next = slAct->next;
-						slAct->next->prev = slAct->prev;
-					}
-					removalOccured=TRUE;
-					gcone::lengthOfSearchList--;
-					if(deleteMarker!=NULL)
-					{
-// 						delete deleteMarker;
-// 						deleteMarker=NULL;
-					}
-#ifndef NDEBUG
-					printf("Removing (");fNormal->show(1,1);printf(") from list\n");
-#endif
-					delete slNormal;
-					break;//leave the while loop, since we found fAct=slAct thus delete slAct and do not add fAct
-				}
-				slAct = slAct->next;
-				/* NOTE The following lines must not be here but rather called inside the if-block above.
-				Otherwise results get crappy. Unfortunately there are two slAct=slAct->next calls now,
-				(not nice!) but since they are in seperate branches of the if-statement there should not
-				be a way it gets called twice thus ommiting one facet:
-				slAct = slAct->next;*/
-				if(deleteMarker!=NULL)
-				{						
-//  					delete deleteMarker;
-//  					deleteMarker=NULL;
-				}
-				delete slNormal;
-						//if slAct was marked as to be deleted, delete it here!
-			}//while(slAct!=NULL)
-			if(removalOccured==FALSE)
-			{
-#ifndef NDEBUG
-// 				cout << "Adding facet (";fNormal->show(1,0);cout << ") to SLA " << endl;
-#endif
-				//Add fAct to SLA
-				facet *marker;
-				marker = slEnd;
-				facet *f2Act;
-				f2Act = fAct->codim2Ptr;
-
-				slEnd->next = new facet();
-				slEnd = slEnd->next;//Update slEnd
-				facet *slEndCodim2Root;
-				facet *slEndCodim2Act;
-				slEndCodim2Root = slEnd->codim2Ptr;
-				slEndCodim2Act = slEndCodim2Root;
-								
-				slEnd->setUCN(this->getUCN());
-				slEnd->isFlippable = TRUE;
-				slEnd->setFacetNormal(fNormal);
-				//NOTE Add interior point here
-				//This is ugly but needed for flip2
-				//Better: have slEnd->interiorPoint point to fAct->interiorPoint
-				//NOTE Only reference -> c.f. copy constructor
-				//slEnd->setInteriorPoint(fAct->getInteriorPoint());
-				slEnd->interiorPoint = fAct->interiorPoint;
-				slEnd->prev = marker;
-				//Copy codim2-facets
-				//int64vec *f2Normal=new int64vec(this->numVars);
-				while(f2Act!=NULL)
-				{
-					int64vec *f2Normal;
-					f2Normal=f2Act->getFacetNormal();
-					if(slEndCodim2Root==NULL)
-					{
-						slEndCodim2Root = new facet(2);
-						slEnd->codim2Ptr = slEndCodim2Root;			
-						slEndCodim2Root->setFacetNormal(f2Normal);
-						slEndCodim2Act = slEndCodim2Root;
-					}
-					else					
-					{
-						slEndCodim2Act->next = new facet(2);
-						slEndCodim2Act = slEndCodim2Act->next;
-						slEndCodim2Act->setFacetNormal(f2Normal);
-					}
-					f2Act = f2Act->next;
-					delete f2Normal;
-				}
-				gcone::lengthOfSearchList++;							
-			}//if( (notParallelCtr==lengthOfSearchList && removalOccured==FALSE) ||
-			fAct = fAct->next;
- 			delete fNormal;
-//  			delete slNormal;
-		}//if(fAct->isFlippable==TRUE)
-		else
-		{
-			fAct = fAct->next;
-		}
-		if(gcone::maxSize<gcone::lengthOfSearchList)
-			gcone::maxSize= gcone::lengthOfSearchList;
-	}//while(fAct!=NULL)
-#ifdef gfanp
-	gettimeofday(&end, 0);
-	time_enqueue += (end.tv_sec - start.tv_sec + 1e-6*(end.tv_usec - start.tv_usec));
-#endif						
-	return slHead;
-}//addC2N
-
-/** Enqueuing using shallow copies*/
-facet * gcone::enqueue2(facet *f)
-{
-	assert(f!=NULL);
-#ifdef gfanp
-	timeval start, end;
-	gettimeofday(&start, 0);
-#endif
-	facet *slHead;
-	slHead = f;
-	facet *slAct;	//called with f=SearchListRoot
-	slAct = f;
-	static facet *slEnd;	//Pointer to end of SLA
-	if(slEnd==NULL)
-		slEnd = f;
-	
-	facet *fAct;
-	fAct = this->facetPtr;//New facets to compare
-	facet *codim2Act;
-	codim2Act = this->facetPtr->codim2Ptr;
-	volatile bool removalOccured=FALSE;
-	while(slEnd->next!=NULL)
-	{
-		slEnd=slEnd->next;
-	}	
-	while(fAct!=NULL)
-	{
-		if(fAct->isFlippable)
-		{
-			facet *fDeleteMarker=NULL;
-			slAct = slHead;
-			if(slAct==NULL)
-			{
-				printf("Zero length SLA\n");
-				facet *fCopy;
-				fCopy = fAct;				
-				while(fCopy!=NULL)
-				{
-					if(fCopy->isFlippable==TRUE)//We must assure fCopy is also flippable
-					{
-						if(slAct==NULL)
-						{
-							slAct = slAct->shallowCopy(*fCopy);//shallow copy constructor
-							slHead = slAct;								
-						}
-						else
-						{
-							slAct->next = slAct->shallowCopy(*fCopy);
-							slAct = slAct->next;
-						}
-					}
-					fCopy = fCopy->next;
-				}
-				break;	//WTF?
-			}
-			/*Comparison starts here*/
-			while(slAct!=NULL)
-			{
-				removalOccured=FALSE;
-#ifndef NDEBUG
-	printf("Checking facet (");fAct->fNormal->show(1,1);printf(") against (");slAct->fNormal->show(1,1);printf(")\n");
-#endif	
-				if(areEqual2(fAct,slAct))
-				{
-					fDeleteMarker=slAct;
-					if(slAct==slHead)
-					{
-// 						fDeleteMarker=slHead;
-// 						printf("headUCN at enq=%i\n",slHead->getUCN());
-						slHead = slAct->next;						
-// 						printf("headUCN at enq=%i\n",slHead->getUCN());
-						if(slHead!=NULL)
-						{
-							slHead->prev = NULL;
-						}
-						fDeleteMarker->shallowDelete();
- 						//delete fDeleteMarker;//NOTE this messes up fAct in noRevS!
-// 						printf("headUCN at enq=%i\n",slHead->getUCN());
-					}
-					else if (slAct==slEnd)
-					{
-						slEnd=slEnd->prev;
-						slEnd->next = NULL;
-						fDeleteMarker->shallowDelete();
-						delete(fDeleteMarker);
-					}								
-					else
-					{
-						slAct->prev->next = slAct->next;
-						slAct->next->prev = slAct->prev;
-						fDeleteMarker->shallowDelete();
-						delete(fDeleteMarker);
-					}
-					removalOccured=TRUE;
-					gcone::lengthOfSearchList--;
-#ifndef NDEBUG
-printf("Removing (");fAct->fNormal->show(1,1);printf(") from list\n");
-#endif
-					break;//leave the while loop, since we found fAct=slAct thus delete slAct and do not add fAct
-				}
-				slAct = slAct->next;				
-			}//while(slAct!=NULL)
-			if(removalOccured==FALSE)
-			{
-				facet *marker=slEnd;
-				slEnd->next = fAct->shallowCopy(*fAct);
-				slEnd = slEnd->next;
-				slEnd->prev=marker;
-				gcone::lengthOfSearchList++;
-			}
-			fAct = fAct->next;
-// 			if(fDeleteMarker!=NULL)
-// 			{
-// 				fDeleteMarker->shallowDelete();
-// 				delete(fDeleteMarker);
-// 				fDeleteMarker=NULL;
-// 			}
-		}
-		else
-			fAct = fAct->next;
-	}//while(fAct!=NULL)
-	
-#ifdef gfanp
-	gettimeofday(&end, 0);
-	time_enqueue += (end.tv_sec - start.tv_sec + 1e-6*(end.tv_usec - start.tv_usec));
-#endif	
-// 	printf("headUCN at enq=%i\n",slHead->getUCN());
-	return slHead;
-}
-
-/** 
-* During flip2 every gc->baseRing gets two ringorder_a
-* To avoid having an awful lot of those in the end we endow
-* gc->baseRing by a suitable ring with (a,dp,C) and copy all
-* necessary stuff over
-* But first we will try to just do an inplace exchange and copying only the
-* gc->gcBasis
-*/
-void gcone::replaceDouble_ringorder_a_ByASingleOne()
-{
-	ring srcRing=currRing;
-	ring replacementRing=rCopy0((ring)this->baseRing);
-	/*We assume we have (a(),a(),dp) here*/
-	omFree(replacementRing->order);
-	replacementRing->order =(int *)omAlloc0(4*sizeof(int/*64*/));
-	omFree(replacementRing->block0);
-	replacementRing->block0=(int *)omAlloc0(4*sizeof(int/*64*/));
-	omFree(replacementRing->block1);
-	replacementRing->block1=(int *)omAlloc0(4*sizeof(int/*64*/));
-	omfree(replacementRing->wvhdl);
-	replacementRing->wvhdl =(int **)omAlloc0(4*sizeof(int/*64*/**));
-			
-	replacementRing->order[0]=ringorder_a/*64*/;
-	replacementRing->block0[0]=1;
-	replacementRing->block1[0]=replacementRing->N;
-		
-	replacementRing->order[1]=ringorder_dp;
-	replacementRing->block0[1]=1;
-	replacementRing->block1[1]=replacementRing->N;
-	
-	replacementRing->order[2]=ringorder_C;
-
-	int64vec *ivw = this->getIntPoint(TRUE);//returns a reference
-// 	assert(this->ivIntPt);	
-	int length=ivw->length();	
-	int/*64*/ *A=(int/*64*/ *)omAlloc0(length*sizeof(int/*64*/));
-	for (int jj=0;jj<length;jj++)
-	{
-		A[jj]=(*ivw)[jj];
-		if((*ivw)[jj]>=INT_MAX) WarnS("A[jj] exceeds INT_MAX in gcone::replaceDouble_ringorder_a_ByASingleOne!\n");
-	}	
-	//delete ivw; //Not needed if this->getIntPoint(TRUE)
-	replacementRing->wvhdl[0]=(int *)A;
-	replacementRing->block1[0]=length;
-	/*Finish*/
-	rComplete(replacementRing);
-	rChangeCurrRing(replacementRing);
-	ideal temporaryGroebnerBasis=idrCopyR(this->gcBasis,this->baseRing);
-	rDelete(this->baseRing);
-	this->baseRing=rCopy(replacementRing);
-	this->gcBasis=idCopy(temporaryGroebnerBasis);	
-	/*And back to where we came from*/
-	rChangeCurrRing(srcRing);
-	idDelete( (ideal*)&temporaryGroebnerBasis );
-	rDelete(replacementRing);	
-}
-
-/** \brief Compute the gcd of two ints
- */
-static int64 int64gcd(const int64 &a, const int64 &b)
-{
-	int64 r, p=a, q=b;
-	if(p < 0)
-		p = -p;
-	if(q < 0)
-		q = -q;
-	while(q != 0)
-	{
-		r = p % q;
-		p = q;
-		q = r;
-	}
-	return p;
-}
-	
-static int intgcd(const int &a, const int &b)
-{
-	int r, p=a, q=b;
-	if(p < 0)
-		p = -p;
-	if(q < 0)
-		q = -q;
-	while(q != 0)
-	{
-		r = p % q;
-		p = q;
-		q = r;
-	}
-	return p;
-}
-		
-/** \brief Construct a dd_MatrixPtr from a cone's list of facets
- * NO LONGER USED
- */
-// inline dd_MatrixPtr gcone::facets2Matrix(const gcone &gc)
-// {
-// 	facet *fAct;
-// 	fAct = gc.facetPtr;
-// 	
-// 	dd_MatrixPtr M;
-// 	dd_rowrange ddrows;
-// 	dd_colrange ddcols;
-// 	ddcols=(this->numVars)+1;
-// 	ddrows=this->numFacets;
-// 	dd_NumberType numb = dd_Integer;
-// 	M=dd_CreateMatrix(ddrows,ddcols);			
-// 			
-// 	int jj=0;
-// 	
-// 	while(fAct!=NULL)
-// 	{
-// 		int64vec *comp;
-// 		comp = fAct->getFacetNormal();
-// 		for(int ii=0;ii<this->numVars;ii++)
-// 		{
-// 			dd_set_si(M->matrix[jj][ii+1],(*comp)[ii]);
-// 		}
-// 		jj++;
-// 		delete comp;
-// 		fAct=fAct->next;				
-// 	}			
-// 	return M;
-// }
-		
-/** \brief Write information about a cone into a file on disk
- *
- * This methods writes the information needed for the "second" method into a file.
- * The file's is divided in sections containing information on
- * 1) the ring
- * 2) the cone's Groebner Basis
- * 3) the cone's facets
- * Each line contains exactly one date
- * Each section starts with its name in CAPITALS
- */
-void gcone::writeConeToFile(const gcone &gc, bool usingIntPoints)
-{
-	int UCN=gc.UCN;
-	stringstream ss;
-	ss << UCN;
-	string UCNstr = ss.str();		
-			
- 	string prefix="/tmp/Singular/cone";
-// 	string prefix="./";	//crude hack -> run tests in separate directories
-	string suffix=".sg";
-	string filename;
-	filename.append(prefix);
-	filename.append(UCNstr);
-	filename.append(suffix);
-		
-// 	int thisPID = getpid();
-// 	ss << thisPID;
-// 	string strPID = ss.str();
-// 	string prefix="./";
-						
-	ofstream gcOutputFile(filename.c_str());
-	assert(gcOutputFile);
-	facet *fAct;
-	fAct = gc.facetPtr;			
-	facet *f2Act;
-	f2Act=fAct->codim2Ptr;
-	
-	char *ringString = rString(gc.baseRing);
-			
-	if (!gcOutputFile)
-	{
-		WerrorS("Error opening file for writing in writeConeToFile\n");
-	}
-	else
-	{	
-		gcOutputFile << "UCN" << endl;
-		gcOutputFile << this->UCN << endl;
-		gcOutputFile << "RING" << endl;	
-		gcOutputFile << ringString << endl;
-		gcOutputFile << "GCBASISLENGTH" << endl;
-		gcOutputFile << IDELEMS(gc.gcBasis) << endl;			
-		//Write this->gcBasis into file
-		gcOutputFile << "GCBASIS" << endl;				
-		for (int ii=0;ii<IDELEMS(gc.gcBasis);ii++)
-		{					
-			gcOutputFile << p_String((poly)gc.gcBasis->m[ii],gc.baseRing) << endl;
-		}				
-					
-		gcOutputFile << "FACETS" << endl;								
-		
-		while(fAct!=NULL)
-		{	
-			const int64vec *iv=fAct->getRef2FacetNormal();
-// 			iv=fAct->getRef2FacetNormal();//->getFacetNormal();
-			f2Act=fAct->codim2Ptr;
-			for (int ii=0;ii<iv->length();ii++)
-			{
-// 				if (ii<iv->length()-1)
-// 					gcOutputFile << (*iv)[ii] << ",";
-// 				else
-// 					gcOutputFile << (*iv)[ii] << " ";
-				gcOutputFile << (*iv)[ii];
-				(ii<iv->length()-1) ? gcOutputFile << "," : gcOutputFile << " ";
-			}
-			//delete iv;
-			while(f2Act!=NULL)
-			{
-				const int64vec *iv2;
-				iv2=f2Act->getRef2FacetNormal();
-				for(int jj=0;jj<iv2->length();jj++)
-				{
-// 					if (jj<iv2->length()-1)
-// 						gcOutputFile << (*iv2)[jj] << ",";
-// 					else
-// 						gcOutputFile << (*iv2)[jj] << " ";
-					gcOutputFile << (*iv2)[jj];
-					(jj<iv2->length()-1) ? gcOutputFile << "," : gcOutputFile << " ";
-				}
-				f2Act = f2Act->next;
-			}
-			gcOutputFile << endl;
-			fAct=fAct->next;
-		}			
-	gcOutputFile.close();
-	}
-	delete [] ringString;
-			
-}//writeConeToFile(gcone const &gc)
-		
-/** \brief Reads a cone from a file identified by its number
-* ||depending on whether flip or flip2 is used, switch the flag flipFlag
-* ||defaults to 0 => flip
-* ||1 => flip2
-*/
-void gcone::readConeFromFile(int UCN, gcone *gc)
-{
-	//int UCN=gc.UCN;
-	stringstream ss;
-	ss << UCN;
-	string UCNstr = ss.str();
-	int gcBasisLength=0;
-	size_t found;	//used for find_first_(not)_of
-
-	string prefix="/tmp/Singular/cone";
-	string suffix=".sg";
-	string filename;
-	filename.append(prefix);
-	filename.append(UCNstr);
-	filename.append(suffix);
-					
-	ifstream gcInputFile(filename.c_str(), ifstream::in);
-	
-	ring saveRing=currRing;	
-	//Comment the following if you uncomment the if(line=="RING") part below
-//  	rChangeCurrRing(gc->baseRing);
-	
-	while( !gcInputFile.eof() )
-	{
-		string line;
-		getline(gcInputFile,line);
-		if(line=="RING")
-		{
-			getline(gcInputFile,line);
-			found = line.find("a(");
-			line.erase(0,found+2);
-			string strweight;
-			strweight=line.substr(0,line.find_first_of(")"));
-						
-			int64vec *iv=new int64vec(this->numVars);// 			
-			for(int ii=0;ii<this->numVars;ii++)
-			{
-				string weight;
-				weight=line.substr(0,line.find_first_of(",)"));
-				char *w=new char[weight.size()+1];
-				strcpy(w,weight.c_str());
-				(*iv)[ii]=atol(w/*weight.c_str()*/);//Better to long. Weight bound in Singular:2147483647
-				delete[] w;
-				line.erase(0,line.find_first_of(",)")+1);
-			}
-			found = line.find("a(");
-			
-			ring newRing;
-			if(currRing->order[0]!=ringorder_a/*64*/)
-			{
-					newRing=rCopyAndAddWeight(currRing,iv);
-			}
-			else
-			{ 	
-					newRing=rCopy0(currRing);
-					int length=this->numVars;
-					int *A=(int *)omAlloc0(length*sizeof(int));
-					for(int jj=0;jj<length;jj++)
-					{
-						A[jj]=(*iv)[jj];
-					}
-					omFree(newRing->wvhdl[0]);
-					newRing->wvhdl[0]=(int*)A;
-					newRing->block1[0]=length;
-			}
-			delete iv;
- 			rComplete(newRing);
-			gc->baseRing=rCopy(newRing);
-			rDelete(newRing);
-			rComplete(gc->baseRing);
-			if(currRing!=gc->baseRing)
-				rChangeCurrRing(gc->baseRing);
-		}
-		
-		if(line=="GCBASISLENGTH")
-		{
-			string strGcBasisLength;
-			getline(gcInputFile, line);
-			strGcBasisLength = line;
-			char *s=new char[strGcBasisLength.size()+1];
-			strcpy(s,strGcBasisLength.c_str());
-			int size=atoi(s/*strGcBasisLength.c_str()*/);
-			delete[] s;
-			gcBasisLength=size;		
-			gc->gcBasis=idInit(size,1);
-		}
-		if(line=="GCBASIS")
-		{
-			for(int jj=0;jj<gcBasisLength;jj++)
-			{
-				getline(gcInputFile,line);
-				//magically convert strings into polynomials
-				//polys.cc:p_Read
-				//check until first occurance of + or -
-				//data or c_str	
-// 				poly strPoly;//=pInit();//Ought to be inside the while loop, but that will eat your memory
-				poly resPoly=pInit();	//The poly to be read in		
-				while(!line.empty())
-				{
-					poly strPoly;//=pInit();
-					
-					string strMonom, strCoeff, strCoeffNom, strCoeffDenom;
-					bool hasCoeffInQ = FALSE;	//does the polynomial have rational coeff?
-					bool hasNegCoeff = FALSE;	//or a negative one?
-					found = line.find_first_of("+-");	//get the first monomial
-					string tmp;
-					tmp=line[found];
-// 					if(found!=0 && (tmp.compare("-")==0) )
-// 						hasNegCoeff = TRUE;	//We have a coeff < 0
-					if(found==0)
-					{
-						if(tmp.compare("-")==0)
-							hasNegCoeff = TRUE;
-						line.erase(0,1);	//remove leading + or -
-						found = line.find_first_of("+-");	//adjust found
-					}
-					strMonom = line.substr(0,found);
-					line.erase(0,found);
-					number nCoeff=nInit(1);
-					number nCoeffNom=nInit(1);
-					number nCoeffDenom=nInit(1);
-					found = strMonom.find_first_of("/");
-					if(found!=string::npos)	//i.e. "/" exists in strMonom
-					{
-						hasCoeffInQ = TRUE;
-						strCoeffNom=strMonom.substr(0,found);						
-						strCoeffDenom=strMonom.substr(found+1,strMonom.find_first_not_of("1234567890",found+1));
-						strMonom.erase(0,found);
-						strMonom.erase(0,strMonom.find_first_not_of("1234567890/"));	
-						char *Nom=new char[strCoeffNom.size()+1];
-						char *Denom=new char[strCoeffDenom.size()+1];
-						strcpy(Nom,strCoeffNom.c_str());
-						strcpy(Denom,strCoeffDenom.c_str());		
-						nRead(Nom/*strCoeffNom.c_str()*/, &nCoeffNom);
-						nRead(Denom/*strCoeffDenom.c_str()*/, &nCoeffDenom);
-						delete[] Nom;
-						delete[] Denom;
-					}
-					else
-					{
-						found = strMonom.find_first_not_of("1234567890");
-						strCoeff = strMonom.substr(0,found);						
-						if(!strCoeff.empty())
-						{
-							char *coeff = new char[strCoeff.size()+1];
-							strcpy(coeff, strCoeff.c_str());
- 							nRead(coeff/*strCoeff.c_str()*/,&nCoeff);
-							delete[] coeff;
-						}
-					}
-					char* monom = new char[strMonom.size()+1];
-					strcpy(monom, strMonom.c_str());						
-					p_Read(monom,strPoly,currRing);	//strPoly:=monom
-					delete[] monom;	
-					switch (hasCoeffInQ)
-					{
-						case TRUE:
-							if(hasNegCoeff)
-								nCoeffNom=nNeg(nCoeffNom);
-							pSetCoeff(strPoly, nDiv(nCoeffNom, nCoeffDenom));
-							break;
-						case FALSE:
-							if(hasNegCoeff)
-								nCoeff=nNeg(nCoeff);							
-							if(!nIsOne(nCoeff))
-							{
-								pSetCoeff(strPoly, nCoeff );
-							}
-							break;
-					}
-						//pSetCoeff(strPoly, (number) intCoeff);//Why is this set to zero instead of 1???
-					if(pIsConstantComp(resPoly))
-					{
-						resPoly=pCopy(strPoly);
-						pDelete(&strPoly);
-					}
-					else
-					{
-// 						poly tmp=pAdd(pCopy(resPoly),strPoly);//foo is destroyed
-// 						pDelete(&resPoly);
-// 						resPoly=tmp;
-// 						pDelete(&tmp);
-						resPoly=pAdd(resPoly,strPoly);//pAdd = p_Add_q, destroys args
-					}
-					/*if(nCoeff!=NULL)					
-						nDelete(&nCoeff);*/ //NOTE This may cause a crash on certain examples...
-					nDelete(&nCoeffNom);
-					nDelete(&nCoeffDenom);
-				}//while(!line.empty())			
-				gc->gcBasis->m[jj]=pCopy(resPoly);
-				pDelete(&resPoly);	//reset
-			}
-// 			break;
-		}//if(line=="GCBASIS")	
-		if(line=="FACETS")
-		{
-			facet *fAct=gc->facetPtr;
-			while(fAct!=NULL)
-			{
-				getline(gcInputFile,line);
-				found = line.find("\t");
-				string normalString=line.substr(0,found);
-				int64vec *fN = new int64vec(this->numVars);
-				for(int ii=0;ii<this->numVars;ii++)
-				{
-					string component;
-					found = normalString.find(",");
-					component=normalString.substr(0,found);
-					char *sComp = new char[component.size()+1];
-					strcpy(sComp,component.c_str());
-					(*fN)[ii]=atol(sComp/*component.c_str()*/);
-					delete[] sComp;
-					normalString.erase(0,found+1);
-				}
-				/*Only the following line needs to be commented out if you decide not to delete fNormals*/
-// 				fAct->setFacetNormal(fN);
-				delete(fN);
-				fAct = fAct->next;	//Booh, this is ugly
-			}			
-			break; //NOTE Must always be in the last if-block!
-		}
-	}//while(!gcInputFile.eof())	
-	gcInputFile.close();
-	rChangeCurrRing(saveRing);
-}
-	
-
-/** \brief Sort the rays of a facet lexicographically
-*/
-// void gcone::sortRays(gcone *gc)
-// {
-// 	facet *fAct;
-// 	fAct = this->facetPtr->codim2Ptr;
-// 	while(fAct->next!=NULL)
-// 	{
-// 		if(fAct->fNormal->compare(fAct->fNormal->next)==-1
-// 	}
-// }
-
-/** \brief Gather the output
-* List of lists
-* If heuristic==1 readConeFromFile() is called once more on every cone. This may slow down the computation but it also
-* allows us to rDelete(gcDel->baseRing) and the such in gcone::noRevS.
-*\param *gc Pointer to gcone, preferably gcRoot ;-)
-*\param n the number of cones as determined by gcRoot->getCounter()
-*
-*/
-lists lprepareResult(gcone *gc, const int n)
-{
-	gcone *gcAct;
-	gcAct = gc;	
-	facet *fAct;
-	fAct = gc->facetPtr;
-	
-	lists res=(lists)omAllocBin(slists_bin);
-	res->Init(n);	//initialize to store n cones
-	for(int ii=0;ii<n;ii++)
-	{
-		if(gfanHeuristic==1)// && gcAct->getUCN()>1)
-		{
-			gcAct->readConeFromFile(gcAct->getUCN(),gcAct);	
-// 			rChangeCurrRing(gcAct->getBaseRing());//NOTE memleak?
-		}
-		rChangeCurrRing(gcAct->getRef2BaseRing());	
-		res->m[ii].rtyp=LIST_CMD;
-		lists l=(lists)omAllocBin(slists_bin);
-		l->Init(6);
-		l->m[0].rtyp=INT_CMD;
-		l->m[0].data=(void*)gcAct->getUCN();
-		l->m[1].rtyp=IDEAL_CMD;
-		/*The following is necessary for leaves in the tree of cones
-		* Since we don't use them in the computation and gcBasis is 
-		* set to (poly)NULL in noRevS we need to get this back here.
-		*/
-// 		if(gcAct->gcBasis->m[0]==(poly)NULL)
-// 		if(gfanHeuristic==1 && gcAct->getUCN()>1)
-// 			gcAct->readConeFromFile(gcAct->getUCN(),gcAct);
-// 		ring saveRing=currRing;
-// 		ring tmpRing=gcAct->getBaseRing;
-// 		rChangeCurrRing(tmpRing);
-// 		l->m[1].data=(void*)idrCopyR_NoSort(gcAct->gcBasis,gcAct->getBaseRing());
-// 		l->m[1].data=(void*)idrCopyR(gcAct->gcBasis,gcAct->getBaseRing());//NOTE memleak?
-		l->m[1].data=(void*)idrCopyR(gcAct->gcBasis,gcAct->getRef2BaseRing());
-// 		rChangeCurrRing(saveRing);
-
-		l->m[2].rtyp=INTVEC_CMD;
-		int64vec iv=(gcAct->f2M(gcAct,gcAct->facetPtr));//NOTE memleak?
-		l->m[2].data=(void*)iv64Copy(&iv);
-		
-		l->m[3].rtyp=LIST_CMD;
-			lists lCodim2List = (lists)omAllocBin(slists_bin);
-			lCodim2List->Init(gcAct->numFacets); 
-			fAct = gcAct->facetPtr;//fAct->codim2Ptr;
-			int jj=0;
-			while(fAct!=NULL && jj<gcAct->numFacets)
-			{
-				lCodim2List->m[jj].rtyp=INTVEC_CMD;
-				int64vec ivC2=(gcAct->f2M(gcAct,fAct,2));
-				lCodim2List->m[jj].data=(void*)iv64Copy(&ivC2);
-				jj++;
-				fAct = fAct->next;
-			} 		
-		l->m[3].data=(void*)lCodim2List;		
-		l->m[4].rtyp=INTVEC_CMD/*RING_CMD*/;
-		l->m[4].data=(void*)(gcAct->getIntPoint/*BaseRing*/()); 		
-		l->m[5].rtyp=INT_CMD;
-		l->m[5].data=(void*)gcAct->getPredUCN();
-		res->m[ii].data=(void*)l;
-		gcAct = gcAct->next;
-	}	
-	return res;
-}
-
-/** Convert gc->gcRays into an intvec in order to be used with bbcone stuff*/
-intvec *gcRays2Intmat(gcone *gc)
-{
-  int r = gc->numRays;
-  int c = gc->numVars;  //Spalten
-  intvec *res = new intvec(r,c,(int)0);
-  
-  int offset=0;
-  for(int ii=0;ii<gc->numRays;ii++)
-  {
-    int64vec *ivTmp=iv64Copy(gc->gcRays[ii]);
-    for(int jj=0;jj<pVariables;jj++)
-      (*res)[offset+jj]=(int)(*ivTmp)[jj];
-    offset += pVariables;
-    delete ivTmp;
-  }
-  return res;
-}
-
-/** \brief Put stuff in gfanlib's datatype gfan::ZFan
-*/
-void prepareGfanLib(gcone *gc, gfan::ZFan *fan)
-{
-  using namespace gfan;
-  int ambientDimension = gc->numVars;
-  gcone *gcAct;
-  gcAct = gc;
-
-  //Iterate over all cones and adjoin to PolyhedralFan
-   while(gcAct!=NULL)
-  {     
-    intvec *rays=gcRays2Intmat(gcAct);
-    ZMatrix zm = intmat2ZMatrix(rays);
-    delete rays;
-    ZCone *zc = new ZCone();
-    *zc = ZCone::givenByRays(zm, gfan::ZMatrix(0, zm.getWidth()));
-//     delete &zm;
-    zc->canonicalize();//As per Anders' hint
-    fan->insert(*zc);
-//     delete zc;
-    gcAct=gcAct->next;
-  }
-}
-
-/** \brief Write facets of a cone into a matrix
-* Takes a pointer to a facet as 2nd arg 
-* f should always point to gc->facetPtr
-* param n is used to determine whether it operates in codim 1 or 2
-* We have to cast the int64vecs to int64vec due to issues with list structure
-*/
-inline int64vec gcone::f2M(gcone *gc, facet *f, int n)
-{
-	facet *fAct;
-	int64vec *res;//=new int64vec(this->numVars);	
-// 	int codim=n;
-// 	int bound;
-// 	if(f==gc->facetPtr)
-	if(n==1)
-	{
-		int64vec *m1Res=new int64vec(gc->numFacets,gc->numVars,0);
-		res = iv64Copy(m1Res);
-		fAct = gc->facetPtr;
-		delete m1Res;
-// 		bound = gc->numFacets*(this->numVars);		
-	}
-	else
-	{
-		fAct = f->codim2Ptr;
-		int64vec *m2Res = new int64vec(f->numCodim2Facets,gc->numVars,0);
-		res = iv64Copy(m2Res);
-		delete m2Res;	
-// 		bound = fAct->numCodim2Facets*(this->numVars);
-
-	}
-	int ii=0;
-	while(fAct!=NULL )//&& ii < bound )
-	{
-		const int64vec *fNormal;
-		fNormal = fAct->getRef2FacetNormal();//->getFacetNormal();
-		for(int jj=0;jj<this->numVars;jj++)
-		{
-			(*res)[ii]=(int)(*fNormal)[jj];//This is ugly and prone to overflow
-			ii++;
-		}
-		fAct = fAct->next;
-	}	
-	return *res;
-}
-
-int gcone::counter=0;
-int gfanHeuristic;
-int gcone::lengthOfSearchList;
-int gcone::maxSize;
-dd_MatrixPtr gcone::dd_LinealitySpace;
-int64vec *gcone::hilbertFunction;
-#ifdef gfanp
-// int gcone::lengthOfSearchList=0;
-float gcone::time_getConeNormals;
-float gcone::time_getCodim2Normals;
-float gcone::t_getExtremalRays;
-float gcone::t_ddPolyh;
-float gcone::time_flip;
-float gcone::time_flip2;
-float gcone::t_areEqual;
-float gcone::t_markings;
-float gcone::t_dd;
-float gcone::t_kStd=0;
-float gcone::time_enqueue;
-float gcone::time_computeInv;
-float gcone::t_ddMC;
-float gcone::t_mI;
-float gcone::t_iP;
-float gcone::t_isParallel;
-unsigned gcone::parallelButNotEqual=0;
-unsigned gcone::numberOfFacetChecks=0;
-#endif
-int gcone::numVars;
-bool gcone::hasHomInput=FALSE;
-int64vec *gcone::ivZeroVector;
-// ideal gfan(ideal inputIdeal, int h)
-/** Main routine 
- * The first and second parameter are mandatory. The third (and maybe fourth) parameter is for Janko :)
- */
-#ifndef USE_ZFAN
-lists grfan(ideal inputIdeal, int h, bool singleCone=FALSE)
-#else
-gfan::ZFan* grfan(ideal inputIdeal, int h, bool singleCone=FALSE)
-#endif
-{
-	lists lResList; //this is the object we return	
-	gfan::ZFan *zResFan = new gfan::ZFan(pVariables);
-	
-	if(rHasGlobalOrdering(currRing))
-	{	
-// 		int numvar = pVariables; 
-		gfanHeuristic = h;
-		
-		enum searchMethod {
-			reverseSearch,
-			noRevS
-		};
-	
-		searchMethod method;
-		method = noRevS;
-	
-		ring inputRing=currRing;	// The ring the user entered
-// 		ring rootRing;			// The ring associated to the target ordering
-
-		dd_set_global_constants();
-		if(method==noRevS)
-		{
-			gcone *gcRoot = new gcone(currRing,inputIdeal);
-			gcone *gcAct;
-			gcAct = gcRoot;
-			gcone::numVars=pVariables;
-			//gcAct->numVars=pVariables;//NOTE is now static
-			gcAct->getGB(inputIdeal);
-			/*Check whether input is homogeneous
-			if TRUE each facet intersects the positive orthant, so we don't need the
-			flippability test in getConeNormals & getExtremalRays
-			*/
-			if(idHomIdeal(gcAct->gcBasis,NULL))//disabled for tests
-			{
-				gcone::hasHomInput=TRUE;
-// 				gcone::hilbertFunction=hHstdSeries(inputIdeal,NULL,NULL,NULL,currRing);
-			}
-			else
-			{
-				gcone::ivZeroVector = new int64vec(pVariables);
-				for(int ii=0;ii<pVariables;ii++)
-					(*gcone::ivZeroVector)[ii]=0;
-			}
-
-			if(isMonomial(gcAct->gcBasis))
-			{//FIXME
-				WerrorS("Monomial input - terminating");
-				dd_free_global_constants();
-				//This is filthy
-				goto pointOfNoReturn;				
-			}			
-			gcAct->getConeNormals(gcAct->gcBasis);
-			gcone::dd_LinealitySpace = gcAct->computeLinealitySpace();
-			gcAct->getExtremalRays(*gcAct);
-			if(singleCone==FALSE)//Is Janko here?
-			{//Compute the whole fan
-			  gcAct->noRevS(*gcAct);	//Here we go!
-			}			    
-			//Switch back to the ring the computation was started in
-			rChangeCurrRing(inputRing);
-			//res=gcAct->gcBasis;
-			//Below is a workaround, since gcAct->gcBasis gets deleted in noRevS
-#ifndef USE_ZFAN
-			lResList=lprepareResult(gcRoot,gcRoot->getCounter());
-#else
-			prepareGfanLib(gcRoot,zResFan);
-#endif
-			/*Cleanup*/
-			gcone *gcDel;	
-			gcDel = gcRoot;
-			gcAct = gcRoot;
-			while(gcAct!=NULL)
-			{
-				gcDel = gcAct;
-				gcAct = gcAct->next;
-// 				delete gcDel;
-			}
-		}//method==noRevS
-		dd_FreeMatrix(gcone::dd_LinealitySpace);
-		dd_free_global_constants();
-	}//rHasGlobalOrdering
-	else
-	{
-		//Simply return an empty list
-		WerrorS("Ring has non-global ordering.\nThis function requires your current ring to be endowed with a global ordering.\n Now terminating!");
-// 		gcone *gcRoot=new gcone();
-// 		gcone *gcPtr = gcRoot;
-// 		for(int ii=0;ii<10000;ii++)
-// 		{
-// 			gcPtr->setBaseRing(currRing);
-// 			facet *fPtr=gcPtr->facetPtr=new facet();
-// 			for(int jj=0;jj<5;jj++)
-// 			{
-// 				int64vec *iv=new int64vec(pVariables);
-// 				fPtr->setFacetNormal(iv);				
-// 				delete(iv);
-// 				fPtr->next=new facet();
-// 				fPtr=fPtr->next;
-// 			}
-// 			gcPtr->next=new gcone();
-// 			gcPtr->next->prev=gcPtr;
-// 			gcPtr=gcPtr->next;			
-// 		}
-// 		gcPtr=gcRoot;
-// 		while(gcPtr!=NULL)
-// 		{
-// 			gcPtr=gcPtr->next;
-// // 			delete(gcPtr->prev);
-// 		}
-		goto pointOfNoReturn;
-	}
-	/*Return result*/
-#ifdef gfanp
-	cout << endl << "t_getConeNormals:" << gcone::time_getConeNormals << endl;
-	/*cout << "t_getCodim2Normals:" << gcone::time_getCodim2Normals << endl;
-	cout << "  t_ddMC:" << gcone::t_ddMC << endl;
-	cout << "  t_mI:" << gcone::t_mI << endl;
-	cout << "  t_iP:" << gcone::t_iP << endl;*/
-	cout << "t_getExtremalRays:" << gcone::t_getExtremalRays << endl;
-	cout << "  t_ddPolyh:" << gcone::t_ddPolyh << endl;
-	cout << "t_Flip:" << gcone::time_flip << endl;
-	cout << "  t_markings:" << gcone::t_markings << endl;
-	cout << "  t_dd:" << gcone::t_dd << endl;
-	cout << "  t_kStd:" << gcone::t_kStd << endl;
-	cout << "t_Flip2:" << gcone::time_flip2 << endl;
-	cout << "  t_dd:" << gcone::t_dd << endl;
-	cout << "  t_kStd:" << gcone::t_kStd << endl;
-	cout << "t_computeInv:" << gcone::time_computeInv << endl;
-	cout << "t_enqueue:" << gcone::time_enqueue << endl;
-	cout << "  t_areEqual:" <<gcone::t_areEqual << endl;
-	cout << "t_isParallel:" <<gcone::t_isParallel << endl;
-	cout << endl;
-	cout << "Checked " << gcone::numberOfFacetChecks << " Facets" << endl;
-	cout << " out of which there were " << gcone::parallelButNotEqual << " parallel but not equal." << endl;
-#endif
-	printf("Maximum lenght of list of facets: %i", gcone::maxSize);
-pointOfNoReturn:
-#ifndef USE_ZFAN
-	return lResList;
-#else
-	return zResFan;
-#endif
-}
-
-/** Compute a single Gröbner cone by specifying an ideal and a weight vector.
- * NOTE: We do NOT check whether the vector is from the relative interior of the cone.
- * That is upon the user to assure.
- */
-// lists grcone_by_intvec(ideal inputIdeal)
-// {
-//   if( (rRingOrder_t)currRing->order[0] == ringorder_wp)
-//   {
-//     lists lResList;
-//     lResList=grfan(inputIdeal, 0, TRUE);
-//   }
-//   else
-//     WerrorS("Need wp ordering");
-// }
-#endif
diff --git a/kernel/gnumpc.cc b/kernel/gnumpc.cc
index e3a28a8..62ea1f0 100644
--- a/kernel/gnumpc.cc
+++ b/kernel/gnumpc.cc
@@ -7,7 +7,7 @@
 * ngc == number gnu complex
 */
 
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 #include <kernel/structs.h>
 #include <kernel/febase.h>
 #include <omalloc/omalloc.h>
diff --git a/kernel/gnumpfl.cc b/kernel/gnumpfl.cc
index eb7294b..8438dd5 100644
--- a/kernel/gnumpfl.cc
+++ b/kernel/gnumpfl.cc
@@ -7,7 +7,7 @@
 * ngf == number gnu floats
 */
 
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 #include <kernel/structs.h>
 #include <kernel/febase.h>
 #include <omalloc/omalloc.h>
diff --git a/kernel/gr_kstd2.cc b/kernel/gr_kstd2.cc
index c311b81..27e0152 100644
--- a/kernel/gr_kstd2.cc
+++ b/kernel/gr_kstd2.cc
@@ -5,7 +5,7 @@
 *  ABSTRACT -  Kernel: noncomm. alg. of Buchberger
 */
 
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 
 #ifdef HAVE_PLURAL
 
diff --git a/kernel/gring.cc b/kernel/gring.cc
index 27e8a5a..ec02714 100644
--- a/kernel/gring.cc
+++ b/kernel/gring.cc
@@ -16,7 +16,7 @@
 #define OM_TRACK 5
 #endif
 
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 
 #ifdef HAVE_PLURAL
 #define PLURAL_INTERNAL_DECLARATIONS
diff --git a/kernel/hdegree.cc b/kernel/hdegree.cc
index 6d4cecd..2e3053e 100644
--- a/kernel/hdegree.cc
+++ b/kernel/hdegree.cc
@@ -5,7 +5,7 @@
 *  ABSTRACT -  dimension, multiplicity, HC, kbase
 */
 
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 
 
 #include <kernel/structs.h>
diff --git a/kernel/hilb.cc b/kernel/hilb.cc
index f687164..e629397 100644
--- a/kernel/hilb.cc
+++ b/kernel/hilb.cc
@@ -5,7 +5,7 @@
 *  ABSTRACT -  Hilbert series
 */
 
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 #include <kernel/structs.h>
 #include <kernel/febase.h>
 #include <omalloc/omalloc.h>
diff --git a/kernel/hutil.cc b/kernel/hutil.cc
index 07214b3..3521746 100644
--- a/kernel/hutil.cc
+++ b/kernel/hutil.cc
@@ -5,7 +5,7 @@
 * ABSTRACT: Utilities for staircase operations
 */
 
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 #include <kernel/structs.h>
 #include <kernel/febase.h>
 #include <omalloc/omalloc.h>
diff --git a/kernel/ideals.cc b/kernel/ideals.cc
index 5c63cc8..d1701b9 100644
--- a/kernel/ideals.cc
+++ b/kernel/ideals.cc
@@ -6,7 +6,7 @@
 */
 
 /* includes */
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 
 #ifndef NDEBUG
 # define MYTEST 0
diff --git a/kernel/int64vec.cc b/kernel/int64vec.cc
index 31a6323..ef39725 100644
--- a/kernel/int64vec.cc
+++ b/kernel/int64vec.cc
@@ -4,7 +4,7 @@
 /*
 * ABSTRACT: class int64vec: lists/vectors of int64
 */
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 #include <kernel/structs.h>
 #include <kernel/febase.h>
 #include <kernel/int64vec.h>
diff --git a/kernel/intvec.cc b/kernel/intvec.cc
index 7688255..075d1ea 100644
--- a/kernel/intvec.cc
+++ b/kernel/intvec.cc
@@ -6,7 +6,7 @@
 */
 #ifndef INTVEC_CC
 #define INTVEC_CC
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 #include <kernel/febase.h>
 #include <kernel/options.h>
 #include <kernel/intvec.h>
diff --git a/kernel/kbuckets.cc b/kernel/kbuckets.cc
index eb90b87..fe6b32c 100644
--- a/kernel/kbuckets.cc
+++ b/kernel/kbuckets.cc
@@ -2,7 +2,7 @@
 *  Computer Algebra System SINGULAR     *
 ****************************************/
 
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 #include <kernel/structs.h>
 #include <omalloc/omalloc.h>
 #include <kernel/p_polys.h>
diff --git a/kernel/khstd.cc b/kernel/khstd.cc
index 23c863d..51039c4 100644
--- a/kernel/khstd.cc
+++ b/kernel/khstd.cc
@@ -5,7 +5,7 @@
 * ABSTRACT:utils for hilbert driven kStd
 */
 
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 #include <kernel/febase.h>
 #include <kernel/options.h>
 #include <kernel/polys.h>
diff --git a/kernel/kspoly.cc b/kernel/kspoly.cc
index 756a256..78b5c02 100644
--- a/kernel/kspoly.cc
+++ b/kernel/kspoly.cc
@@ -6,7 +6,7 @@
 */
 
 // #define PDEBUG 2
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 #include <kernel/options.h>
 #include <kernel/kutil.h>
 #include <kernel/numbers.h>
diff --git a/kernel/kstd1.cc b/kernel/kstd1.cc
index 4c9c978..07175cb 100644
--- a/kernel/kstd1.cc
+++ b/kernel/kstd1.cc
@@ -13,7 +13,7 @@
 // define if buckets should be used
 #define MORA_USE_BUCKETS
 
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 #include <omalloc/omalloc.h>
 
 #ifndef NDEBUG
diff --git a/kernel/kstd2.cc b/kernel/kstd2.cc
index 38ea53d..e853df2 100644
--- a/kernel/kstd2.cc
+++ b/kernel/kstd2.cc
@@ -12,7 +12,7 @@
 // define to enable tailRings
 #define HAVE_TAIL_RING
 
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 
 #ifndef NDEBUG
 # define MYTEST 0
diff --git a/kernel/kstdfac.cc b/kernel/kstdfac.cc
index 3c6b003..437a9d5 100644
--- a/kernel/kstdfac.cc
+++ b/kernel/kstdfac.cc
@@ -5,7 +5,7 @@
 *  ABSTRACT -  Kernel: factorizing alg. of Buchberger
 */
 
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 #include <omalloc/omalloc.h>
 #include <kernel/options.h>
 #include <kernel/polys.h>
diff --git a/kernel/kutil.cc b/kernel/kutil.cc
index 68d2cf9..0b2103b 100644
--- a/kernel/kutil.cc
+++ b/kernel/kutil.cc
@@ -10,7 +10,7 @@
 #define KUTIL_CC
 #include <stdlib.h>
 #include <string.h>
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 
 #ifndef NDEBUG
 # define MYTEST 0
diff --git a/kernel/linearAlgebra.cc b/kernel/linearAlgebra.cc
index 015cac2..74842dc 100644
--- a/kernel/linearAlgebra.cc
+++ b/kernel/linearAlgebra.cc
@@ -14,7 +14,7 @@
 /*****************************************************************************/
 
 // include header files
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 #include <kernel/structs.h>
 #include <kernel/polys.h>
 #include <kernel/ideals.h>
diff --git a/kernel/longalg.cc b/kernel/longalg.cc
index b86431f..5b26264 100644
--- a/kernel/longalg.cc
+++ b/kernel/longalg.cc
@@ -7,7 +7,7 @@
 
 #include <stdio.h>
 #include <string.h>
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 #include <kernel/structs.h>
 #include <omalloc/omalloc.h>
 #include <kernel/febase.h>
diff --git a/kernel/longrat.cc b/kernel/longrat.cc
index c2cc177..1938a45 100644
--- a/kernel/longrat.cc
+++ b/kernel/longrat.cc
@@ -5,7 +5,7 @@
 * ABSTRACT: computation with long rational numbers (Hubert Grassmann)
 */
 
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 #include <kernel/structs.h>
 #include <kernel/longrat.h>
 
diff --git a/kernel/longrat0.cc b/kernel/longrat0.cc
index 7ecaabe..f4d1e32 100644
--- a/kernel/longrat0.cc
+++ b/kernel/longrat0.cc
@@ -8,7 +8,7 @@
 
 #include <stdio.h>
 #include <string.h>
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 #include <kernel/structs.h>
 #include <omalloc/omalloc.h>
 #include <kernel/febase.h>
diff --git a/kernel/longtrans.cc b/kernel/longtrans.cc
index 88d48ab..cf2ebef 100644
--- a/kernel/longtrans.cc
+++ b/kernel/longtrans.cc
@@ -9,7 +9,7 @@
 #if 0
 #include <stdio.h>
 #include <string.h>
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 #include <kernel/structs.h>
 #include <omalloc/omalloc.h>
 #include <kernel/febase.h>
diff --git a/kernel/lplist.cc b/kernel/lplist.cc
index 35bacb9..0f5fdc3 100644
--- a/kernel/lplist.cc
+++ b/kernel/lplist.cc
@@ -4,7 +4,7 @@
 /*
 * ABSTRACT: list interface
 */
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 
 #ifdef HAVE_F5
 
diff --git a/kernel/maps.cc b/kernel/maps.cc
index 951c2c9..d323ca8 100644
--- a/kernel/maps.cc
+++ b/kernel/maps.cc
@@ -5,7 +5,7 @@
 * ABSTRACT - the mapping of polynomials to other rings
 */
 
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 #include <kernel/options.h>
 #include <kernel/febase.h>
 #include <kernel/polys.h>
diff --git a/kernel/matpol.cc b/kernel/matpol.cc
index 16b0ea7..304c249 100644
--- a/kernel/matpol.cc
+++ b/kernel/matpol.cc
@@ -9,7 +9,7 @@
 #include <stdio.h>
 #include <math.h>
 
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 #include <omalloc/mylimits.h>
 #include <kernel/structs.h>
 #include <kernel/kstd1.h>
diff --git a/kernel/misc.cc b/kernel/misc.cc
index 21ecce5..4ba410c 100644
--- a/kernel/misc.cc
+++ b/kernel/misc.cc
@@ -12,7 +12,7 @@
 #include <stdlib.h>
 #include <time.h>
 
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 #include <omalloc/mylimits.h>
 #include <omalloc/omalloc.h>
 #include <kernel/structs.h>
diff --git a/kernel/mmalloc.cc b/kernel/mmalloc.cc
index 0a3b6d4..2050e59 100644
--- a/kernel/mmalloc.cc
+++ b/kernel/mmalloc.cc
@@ -6,7 +6,7 @@
 */
 #include <stdlib.h>
 
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 
 #include <omalloc/omalloc.h>
 #include <new>
diff --git a/kernel/mmstd.c b/kernel/mmstd.c
index f2fd277..6ccb824 100644
--- a/kernel/mmstd.c
+++ b/kernel/mmstd.c
@@ -6,7 +6,7 @@
 * i.e. (malloc/realloc/free)
 */
 
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 
 #include <omalloc/omalloc.h>
 #include <Singular/static.h>
diff --git a/kernel/mod_raw.cc b/kernel/mod_raw.cc
index 8cb85c7..025bbb2 100644
--- a/kernel/mod_raw.cc
+++ b/kernel/mod_raw.cc
@@ -17,7 +17,7 @@
 #include <sys/stat.h>
 
 
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 #include <Singular/static.h>
 
 #include <kernel/mod_raw.h>
diff --git a/kernel/modulop.cc b/kernel/modulop.cc
index 70ee176..35e1c37 100644
--- a/kernel/modulop.cc
+++ b/kernel/modulop.cc
@@ -6,7 +6,7 @@
 */
 
 #include <string.h>
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 #include <omalloc/mylimits.h>
 #include <kernel/structs.h>
 #include <kernel/febase.h>
diff --git a/kernel/mpr_base.cc b/kernel/mpr_base.cc
index 95947df..a784bab 100644
--- a/kernel/mpr_base.cc
+++ b/kernel/mpr_base.cc
@@ -8,7 +8,7 @@
 
 #include <math.h>
 
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 
 #include <omalloc/mylimits.h>
 #include <omalloc/omalloc.h>
diff --git a/kernel/mpr_complex.cc b/kernel/mpr_complex.cc
index 255e14f..9fb1056 100644
--- a/kernel/mpr_complex.cc
+++ b/kernel/mpr_complex.cc
@@ -10,7 +10,7 @@
 
 // WARNING! ALWAYS use omAlloc and FreeL when alloc. memory for some char* !!
 
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 //#ifdef HAVE_MPR
 #include <kernel/structs.h>
 #include <kernel/febase.h>
diff --git a/kernel/mpr_inout.cc b/kernel/mpr_inout.cc
index 3e13e7e..f8c9b7e 100644
--- a/kernel/mpr_inout.cc
+++ b/kernel/mpr_inout.cc
@@ -6,7 +6,7 @@
 * ABSTRACT - multipolynomial resultant
 */
 
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 //#ifdef HAVE_MPR
 
 //-> includes
diff --git a/kernel/mpr_numeric.cc b/kernel/mpr_numeric.cc
index 55bb031..79c741b 100644
--- a/kernel/mpr_numeric.cc
+++ b/kernel/mpr_numeric.cc
@@ -8,7 +8,7 @@
 *            ( root finder, vandermonde system solver, simplex )
 */
 
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 //#ifdef HAVE_MPR
 
 //#define mprDEBUG_ALL
diff --git a/kernel/multicnt.cc b/kernel/multicnt.cc
index de21ed3..9f11b1d 100644
--- a/kernel/multicnt.cc
+++ b/kernel/multicnt.cc
@@ -7,7 +7,7 @@
 
 #define MULTICNT_CC
 
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 
 #ifdef HAVE_SPECTRUM
 
diff --git a/kernel/ncSACache.cc b/kernel/ncSACache.cc
index 86b86e5..742ebba 100644
--- a/kernel/ncSACache.cc
+++ b/kernel/ncSACache.cc
@@ -17,7 +17,7 @@
 #endif
 
 
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 
 #ifndef NDEBUG
 #define OUTPUT 1
diff --git a/kernel/ncSAFormula.cc b/kernel/ncSAFormula.cc
index c985bda..b4fefe0 100644
--- a/kernel/ncSAFormula.cc
+++ b/kernel/ncSAFormula.cc
@@ -17,7 +17,7 @@
 #endif
 
 
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 
 #ifdef HAVE_PLURAL
 
diff --git a/kernel/ncSAMult.cc b/kernel/ncSAMult.cc
index ecdcaed..fcf767a 100644
--- a/kernel/ncSAMult.cc
+++ b/kernel/ncSAMult.cc
@@ -17,7 +17,7 @@
 #endif
 
 
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 
 #ifdef HAVE_PLURAL
 
diff --git a/kernel/npolygon.cc b/kernel/npolygon.cc
index b54d941..afb939b 100644
--- a/kernel/npolygon.cc
+++ b/kernel/npolygon.cc
@@ -7,7 +7,7 @@
 
 #define  NPOLYGON_CC
 
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 
 #ifdef HAVE_SPECTRUM
 
diff --git a/kernel/numbers.cc b/kernel/numbers.cc
index 35c08b2..61b68a7 100644
--- a/kernel/numbers.cc
+++ b/kernel/numbers.cc
@@ -8,7 +8,7 @@
 
 #include <string.h>
 #include <stdlib.h>
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 #include <kernel/structs.h>
 #include <kernel/febase.h>
 #include <kernel/kstd1.h>
diff --git a/kernel/pDebug.cc b/kernel/pDebug.cc
index 5b2e82a..b658d92 100644
--- a/kernel/pDebug.cc
+++ b/kernel/pDebug.cc
@@ -14,7 +14,7 @@
 #include <stdio.h>
 
 
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 #ifdef PDEBUG
 
 // do the following to always enforce checking of pSetm
diff --git a/kernel/pInline0.cc b/kernel/pInline0.cc
index 7eb90cb..f851034 100644
--- a/kernel/pInline0.cc
+++ b/kernel/pInline0.cc
@@ -9,7 +9,7 @@
  *******************************************************************/
 #ifndef PINLINE0_CC
 
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 
 #define PINLINE0_CC
 #undef DO_PINLINE0
diff --git a/kernel/pInline1.cc b/kernel/pInline1.cc
index e30321d..40563b6 100644
--- a/kernel/pInline1.cc
+++ b/kernel/pInline1.cc
@@ -10,7 +10,7 @@
 #ifndef PINLINE1_CC
 #define PINLINE1_CC
 
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 
 #ifdef PDEBUG
 
diff --git a/kernel/pInline2.cc b/kernel/pInline2.cc
index b71b8ad..5b4ede8 100644
--- a/kernel/pInline2.cc
+++ b/kernel/pInline2.cc
@@ -9,7 +9,7 @@
  *******************************************************************/
 #ifndef PINLINE2_CC
 #define PINLINE2_CC
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 
 #ifdef PDEBUG
 
diff --git a/kernel/pShallowCopyDelete.cc b/kernel/pShallowCopyDelete.cc
index f5d6daa..25fe533 100644
--- a/kernel/pShallowCopyDelete.cc
+++ b/kernel/pShallowCopyDelete.cc
@@ -7,7 +7,7 @@
  *  Author:  obachman (Olaf Bachmann)
  *  Created: 8/00
  *******************************************************************/
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 #include <kernel/p_polys.h>
 #include <kernel/ring.h>
 #include <kernel/pShallowCopyDelete.h>
diff --git a/kernel/p_Mult_q.cc b/kernel/p_Mult_q.cc
index cbec90e..bbb07ef 100644
--- a/kernel/p_Mult_q.cc
+++ b/kernel/p_Mult_q.cc
@@ -7,7 +7,7 @@
  *  Author:  obachman (Olaf Bachmann)
  *  Created: 8/00
  *******************************************************************/
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 
 /***************************************************************
  *
diff --git a/kernel/p_Mult_q.h b/kernel/p_Mult_q.h
index 8ec326f..4da031f 100644
--- a/kernel/p_Mult_q.h
+++ b/kernel/p_Mult_q.h
@@ -8,7 +8,7 @@
  *  Author:  obachman (Olaf Bachmann)
  *  Created: 8/00
  *******************************************************************/
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 #include <kernel/structs.h>
 
 // Use buckets if min(pLength(p), pLength(q)) >= MIN_LENGTH_BUCKET
diff --git a/kernel/p_Procs_Dynamic.cc b/kernel/p_Procs_Dynamic.cc
index 58f1249..8f30e78 100644
--- a/kernel/p_Procs_Dynamic.cc
+++ b/kernel/p_Procs_Dynamic.cc
@@ -7,7 +7,7 @@
  *  Author:  obachman (Olaf Bachmann)
  *  Created: 12/00
  *******************************************************************/
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 #include <kernel/structs.h>
 #include <kernel/p_polys.h>
 #include <kernel/ring.h>
diff --git a/kernel/p_Procs_Generate.cc b/kernel/p_Procs_Generate.cc
index 5ed8398..af1003d 100644
--- a/kernel/p_Procs_Generate.cc
+++ b/kernel/p_Procs_Generate.cc
@@ -14,7 +14,7 @@
 #include <stdlib.h>
 #include <string.h>
 
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 #include <kernel/dError.c>
 
 #ifdef p_Procs_Static
diff --git a/kernel/p_Procs_Lib.cc b/kernel/p_Procs_Lib.cc
index 4014665..5ff7c37 100644
--- a/kernel/p_Procs_Lib.cc
+++ b/kernel/p_Procs_Lib.cc
@@ -7,7 +7,7 @@
  *  Author:  obachman (Olaf Bachmann)
  *  Created: 12/00
  *******************************************************************/
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 #include <kernel/structs.h>
 #include <kernel/p_polys.h>
 #include <kernel/ring.h>
diff --git a/kernel/p_Procs_Static.cc b/kernel/p_Procs_Static.cc
index a93f493..a3aa326 100644
--- a/kernel/p_Procs_Static.cc
+++ b/kernel/p_Procs_Static.cc
@@ -7,7 +7,7 @@
  *  Author:  obachman (Olaf Bachmann)
  *  Created: 12/00
  *******************************************************************/
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 #include <kernel/structs.h>
 #include <kernel/p_polys.h>
 #include <kernel/ring.h>
diff --git a/kernel/p_polys.cc b/kernel/p_polys.cc
index 4e90501..01c15c6 100644
--- a/kernel/p_polys.cc
+++ b/kernel/p_polys.cc
@@ -9,7 +9,7 @@
  *******************************************************************/
 
 
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 
 #include <kernel/structs.h>
 #include <kernel/p_polys.h>
diff --git a/kernel/page.c b/kernel/page.c
index 4011a14..19681d5 100644
--- a/kernel/page.c
+++ b/kernel/page.c
@@ -1,4 +1,4 @@
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 #ifdef PAGE_TEST
 #include <stdlib.h>
 #include <unistd.h>
diff --git a/kernel/polys-impl.cc b/kernel/polys-impl.cc
index a1b751d..d247b65 100644
--- a/kernel/polys-impl.cc
+++ b/kernel/polys-impl.cc
@@ -17,7 +17,7 @@
 
 #include <stdio.h>
 #include <string.h>
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 
 #include <omalloc/omalloc.h>
 #ifdef PDEBUG
diff --git a/kernel/polys.cc b/kernel/polys.cc
index b89a9a0..53ba7b9 100644
--- a/kernel/polys.cc
+++ b/kernel/polys.cc
@@ -10,7 +10,7 @@
 #include <stdio.h>
 #include <string.h>
 #include <ctype.h>
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 #include <kernel/options.h>
 #include <omalloc/omalloc.h>
 #include <kernel/febase.h>
diff --git a/kernel/polys0.cc b/kernel/polys0.cc
index d5ec8fd..87aea68 100644
--- a/kernel/polys0.cc
+++ b/kernel/polys0.cc
@@ -7,7 +7,7 @@
 */
 
 /* includes */
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 #include <kernel/structs.h>
 #include <kernel/numbers.h>
 #include <kernel/ring.h>
diff --git a/kernel/polys1.cc b/kernel/polys1.cc
index 36d25d6..fa797fe 100644
--- a/kernel/polys1.cc
+++ b/kernel/polys1.cc
@@ -8,7 +8,7 @@
 
 /* includes */
 #include <string.h>
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 #include <kernel/options.h>
 #include <kernel/numbers.h>
 #include <kernel/ffields.h>
diff --git a/kernel/prCopy.cc b/kernel/prCopy.cc
index 7273cff..d335eda 100644
--- a/kernel/prCopy.cc
+++ b/kernel/prCopy.cc
@@ -5,7 +5,7 @@
 * ABSTRACT - implementation of functions for Copy/Move/Delete for Polys
 */
 
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 #include <omalloc/omalloc.h>
 #include <kernel/p_polys.h>
 #include <kernel/numbers.h>
diff --git a/kernel/ratgring.cc b/kernel/ratgring.cc
index 6dc7a5c..48d7a6f 100644
--- a/kernel/ratgring.cc
+++ b/kernel/ratgring.cc
@@ -7,7 +7,7 @@
  *  Author:  levandov (Viktor Levandovsky)
  *  Created: 8/00 - 11/00
  *******************************************************************/
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 #include <kernel/ratgring.h>
 #ifdef HAVE_RATGRING
 #include <kernel/gring.h>
diff --git a/kernel/ring.cc b/kernel/ring.cc
index f2f9a6b..ac14c23 100644
--- a/kernel/ring.cc
+++ b/kernel/ring.cc
@@ -7,7 +7,7 @@
 
 /* includes */
 #include <math.h>
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 
 #include <kernel/options.h>
 #include <omalloc/omalloc.h>
diff --git a/kernel/ringgb.cc b/kernel/ringgb.cc
index 60e33c9..c1d510f 100644
--- a/kernel/ringgb.cc
+++ b/kernel/ringgb.cc
@@ -7,7 +7,7 @@
 //#define HAVE_TAIL_RING
 #define NO_BUCKETS
 
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 #include <kernel/kutil.h>
 #include <kernel/structs.h>
 #include <omalloc/omalloc.h>
diff --git a/kernel/ringgb.h b/kernel/ringgb.h
index 10f15c8..dd05f96 100644
--- a/kernel/ringgb.h
+++ b/kernel/ringgb.h
@@ -6,7 +6,7 @@
 */
 #ifndef RINGGB_HEADER
 #define RINGGB_HEADER
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 
 #ifdef HAVE_RINGS
 #include <kernel/polys.h>
diff --git a/kernel/rintegers.cc b/kernel/rintegers.cc
index 5b3af34..199315a 100644
--- a/kernel/rintegers.cc
+++ b/kernel/rintegers.cc
@@ -6,7 +6,7 @@
 */
 
 #include <string.h>
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 #include <omalloc/mylimits.h>
 #include <kernel/structs.h>
 #include <kernel/febase.h>
diff --git a/kernel/rmodulo2m.cc b/kernel/rmodulo2m.cc
index 13efb52..23e8635 100644
--- a/kernel/rmodulo2m.cc
+++ b/kernel/rmodulo2m.cc
@@ -6,7 +6,7 @@
 */
 
 #include <string.h>
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 
 #ifdef HAVE_RINGS
 #include <omalloc/mylimits.h>
diff --git a/kernel/rmodulon.cc b/kernel/rmodulon.cc
index 17b2720..e90aab7 100644
--- a/kernel/rmodulon.cc
+++ b/kernel/rmodulon.cc
@@ -6,7 +6,7 @@
 */
 
 #include <string.h>
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 #include <omalloc/mylimits.h>
 #include <kernel/structs.h>
 #include <kernel/febase.h>
diff --git a/kernel/sbuckets.cc b/kernel/sbuckets.cc
index 2293b27..a99f0c5 100644
--- a/kernel/sbuckets.cc
+++ b/kernel/sbuckets.cc
@@ -8,7 +8,7 @@
  *  Author:  obachman (Olaf Bachmann)
  *  Created: 9/00
  *******************************************************************/
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 
 #include <kernel/sbuckets.h>
 #include <omalloc/omalloc.h>
diff --git a/kernel/sca.cc b/kernel/sca.cc
index a4aeea7..41bda73 100644
--- a/kernel/sca.cc
+++ b/kernel/sca.cc
@@ -18,7 +18,7 @@
 #endif
 
 // #define PDEBUG 2
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 
 #ifdef HAVE_PLURAL
 // for
diff --git a/kernel/semic.cc b/kernel/semic.cc
index dced520..fed3484 100644
--- a/kernel/semic.cc
+++ b/kernel/semic.cc
@@ -7,7 +7,7 @@
 
 #define SEMIC_CC
 
-#include <Singular/mod2.h>
+#include"mod2.h"
 
 #ifdef HAVE_SPECTRUM
 
diff --git a/kernel/shiftgb.cc b/kernel/shiftgb.cc
index fc09395..04a73f6 100644
--- a/kernel/shiftgb.cc
+++ b/kernel/shiftgb.cc
@@ -5,7 +5,7 @@
 * ABSTRACT: kernel: utils for shift GB and free GB
 */
 
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 
 #ifdef HAVE_SHIFTBBA
 #include <kernel/febase.h>
diff --git a/kernel/shortfl.cc b/kernel/shortfl.cc
index 31c3f66..fa1646a 100644
--- a/kernel/shortfl.cc
+++ b/kernel/shortfl.cc
@@ -7,7 +7,7 @@
 */
 
 #include <string.h>
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 #include <omalloc/mylimits.h>
 #include <kernel/structs.h>
 #include <kernel/febase.h>
diff --git a/kernel/sparsmat.cc b/kernel/sparsmat.cc
index ad245a6..d3d1bed 100644
--- a/kernel/sparsmat.cc
+++ b/kernel/sparsmat.cc
@@ -6,7 +6,7 @@
 * ABSTRACT: operations with sparse matrices (bareiss, ...)
 */
 
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 #include <kernel/options.h>
 #include <kernel/febase.h>
 #include <kernel/intvec.h>
diff --git a/kernel/spectrum.cc b/kernel/spectrum.cc
index 98a8f4f..1671a6e 100644
--- a/kernel/spectrum.cc
+++ b/kernel/spectrum.cc
@@ -7,7 +7,7 @@
 
 #define SPECTRUM_CC
 
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 
 #ifdef HAVE_SPECTRUM
 
diff --git a/kernel/splist.cc b/kernel/splist.cc
index 7a4b65a..c1db0ae 100644
--- a/kernel/splist.cc
+++ b/kernel/splist.cc
@@ -7,7 +7,7 @@
 
 #define SPLIST_CC
 
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 
 #ifdef HAVE_SPECTRUM
 
diff --git a/kernel/summator.cc b/kernel/summator.cc
index ce70f0b..5351586 100644
--- a/kernel/summator.cc
+++ b/kernel/summator.cc
@@ -17,7 +17,7 @@
 #define OM_TRACK 5
 #endif
 
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 #ifdef HAVE_PLURAL
 #include <kernel/summator.h>
 #include <kernel/options.h>
diff --git a/kernel/syz.cc b/kernel/syz.cc
index bcca57f..2283bf0 100644
--- a/kernel/syz.cc
+++ b/kernel/syz.cc
@@ -7,7 +7,7 @@
 */
 
 
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 #include <kernel/options.h>
 #include <omalloc/omalloc.h>
 #include <kernel/polys.h>
diff --git a/kernel/syz0.cc b/kernel/syz0.cc
index 2d92449..e5e4d2b 100644
--- a/kernel/syz0.cc
+++ b/kernel/syz0.cc
@@ -6,7 +6,7 @@
 */
 
 
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 #include <kernel/options.h>
 #include <omalloc/omalloc.h>
 #include <kernel/polys.h>
diff --git a/kernel/syz1.cc b/kernel/syz1.cc
index f815067..c8537c4 100644
--- a/kernel/syz1.cc
+++ b/kernel/syz1.cc
@@ -5,7 +5,7 @@
 * ABSTRACT: resolutions
 */
 
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 #include <omalloc/mylimits.h>
 #include <kernel/options.h>
 #include <omalloc/omalloc.h>
diff --git a/kernel/syz2.cc b/kernel/syz2.cc
index 5014240..83acf72 100644
--- a/kernel/syz2.cc
+++ b/kernel/syz2.cc
@@ -5,7 +5,7 @@
 * ABSTRACT: resolutions
 */
 
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 #include <omalloc/mylimits.h>
 #include <kernel/options.h>
 #include <omalloc/omalloc.h>
diff --git a/kernel/syz3.cc b/kernel/syz3.cc
index 175258f..b4edc9b 100644
--- a/kernel/syz3.cc
+++ b/kernel/syz3.cc
@@ -5,7 +5,7 @@
 * ABSTRACT: resolutions
 */
  
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 #include <omalloc/mylimits.h>
 #include <kernel/options.h>
 #include <omalloc/omalloc.h>
diff --git a/kernel/tgb.cc b/kernel/tgb.cc
index f4c1a0f..3ee6393 100644
--- a/kernel/tgb.cc
+++ b/kernel/tgb.cc
@@ -13,7 +13,7 @@
 ///@TODO: delay nur auf Sugarvergr?erung
 ///@TODO: grade aus ecartS, setze dazu strat->honey; und nutze p.ecart
 ///@TODO: no tail reductions in syz comp
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 #include <kernel/options.h>
 #include <kernel/tgb.h>
 #include <kernel/tgb_internal.h>
diff --git a/kernel/tgbgauss.cc b/kernel/tgbgauss.cc
index a99a0ad..7d6db60 100644
--- a/kernel/tgbgauss.cc
+++ b/kernel/tgbgauss.cc
@@ -4,7 +4,7 @@
 /*
 * ABSTRACT: gauss implementation for F4
 */
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 #include <kernel/options.h>
 #include <kernel/tgbgauss.h>
 #include <omalloc/omalloc.h>
diff --git a/kernel/tgbgauss.h b/kernel/tgbgauss.h
index 8ab56fc..994a208 100644
--- a/kernel/tgbgauss.h
+++ b/kernel/tgbgauss.h
@@ -6,7 +6,7 @@
 /*
 * ABSTRACT: gauss implementation for F4 header
 */
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 #include <kernel/numbers.h>
 //#include "tgb_internal.h"
 
diff --git a/kernel/timer.cc b/kernel/timer.cc
index 7623fa8..4a382bf 100644
--- a/kernel/timer.cc
+++ b/kernel/timer.cc
@@ -8,7 +8,7 @@
 #include <sys/resource.h>
 #include <unistd.h>
 
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 
 int        timerv = 0;
 static double timer_resolution = TIMER_RESOLUTION;
diff --git a/kernel/tmult.cc b/kernel/tmult.cc
index 647e6e3..c26c61e 100644
--- a/kernel/tmult.cc
+++ b/kernel/tmult.cc
@@ -4,7 +4,7 @@
  *  tmult.cc: p_Mult_nn with pthreads - experimental
  *
  *******************************************************************/
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 #include <kernel/structs.h>
 #include <kernel/numbers.h>
 #include <kernel/polys.h>
diff --git a/kernel/units.cc b/kernel/units.cc
index 3c40728..37f7416 100644
--- a/kernel/units.cc
+++ b/kernel/units.cc
@@ -5,7 +5,7 @@
 * ABSTRACT: procedures to compute with units
 */
 
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 #include <kernel/structs.h>
 #include <kernel/febase.h>
 #include <kernel/numbers.h>
diff --git a/kernel/walkMain.cc b/kernel/walkMain.cc
index 1f5b530..c0ac32a 100644
--- a/kernel/walkMain.cc
+++ b/kernel/walkMain.cc
@@ -6,7 +6,7 @@
  *
 */
 #include <string.h>
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 #include <kernel/options.h>
 #include <kernel/intvec.h>
 #include <kernel/int64vec.h>
diff --git a/kernel/walkProc.cc b/kernel/walkProc.cc
index 8e39c5a..18945b7 100644
--- a/kernel/walkProc.cc
+++ b/kernel/walkProc.cc
@@ -2,7 +2,7 @@
 *  Computer Algebra System SINGULAR     *
 ****************************************/
 
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 #include <kernel/structs.h>
 #include <kernel/structs.h>
 #include <kernel/polys.h>
diff --git a/kernel/walkSupport.cc b/kernel/walkSupport.cc
index ada42f7..ea9c1fa 100644
--- a/kernel/walkSupport.cc
+++ b/kernel/walkSupport.cc
@@ -1,5 +1,5 @@
 #include <string.h>
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 #include <kernel/intvec.h>
 #include <kernel/int64vec.h>
 #include <kernel/polys.h>
diff --git a/kernel/weight.cc b/kernel/weight.cc
index 936187b..23a8779 100644
--- a/kernel/weight.cc
+++ b/kernel/weight.cc
@@ -7,7 +7,7 @@
 */
 
 #include <math.h>
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 #include <kernel/options.h>
 #include <omalloc/omalloc.h>
 #include <kernel/polys.h>
diff --git a/kernel/weight0.c b/kernel/weight0.c
index 04746d5..80454d9 100644
--- a/kernel/weight0.c
+++ b/kernel/weight0.c
@@ -8,7 +8,7 @@
 
 #include <math.h>
 #include <string.h>
-#include <Singular/mod2.h>
+#include <kernel/mod2.h>
 #include <omalloc/omalloc.h>
 #include <kernel/structs.h>
 
diff --git a/libfac/Makefile.in b/libfac/Makefile.in
index 1f2953f..c2b38eb 100644
--- a/libfac/Makefile.in
+++ b/libfac/Makefile.in
@@ -146,13 +146,13 @@ libsingfac_p.a:	$(PROFOBJ)
 install-nolns: install
 
 install install-libsingular:	all
-	${MKINSTALLDIRS} $(DESTDIR)${includedir}
-	${MKINSTALLDIRS} $(DESTDIR)${libdir}
-	${INSTALL_DATA} ${LIBFACINCLUDE} $(DESTDIR)${includedir}
-	${INSTALL_DATA} ${TARGETNAME}.a $(DESTDIR)${libdir}
-	-${INSTALL_DATA} libsingfac_g.a $(DESTDIR)${libdir}
-	$(RANLIB) $(DESTDIR)${libdir}/${TARGETNAME}.a
-	-$(RANLIB) $(DESTDIR)${libdir}/libsingfac_g.a
+	${MKINSTALLDIRS} ${includedir}
+	${MKINSTALLDIRS} ${libdir}
+	${INSTALL_DATA} ${LIBFACINCLUDE} ${includedir}
+	${INSTALL_DATA} ${TARGETNAME}.a ${libdir}
+	-${INSTALL_DATA} libsingfac_g.a ${libdir}
+	$(RANLIB) ${libdir}/${TARGETNAME}.a
+	-$(RANLIB) ${libdir}/libsingfac_g.a
 
 install_all: install libsingfac_p.a
 	-${INSTALL_DATA} libsingfac_p.a ${libdir}
diff --git a/mkinstalldirs b/mkinstalldirs
index bd690e1..91f6d04 100755
--- a/mkinstalldirs
+++ b/mkinstalldirs
@@ -8,7 +8,7 @@
 errstatus=0
 
 for file in ${1+"$@"} ; do 
-   set fnord `echo ":$file" | /bin/sed -ne 's/^:\//#/;s/^://;s/\// /g;s/^#/\//;p'`
+   set fnord `echo ":$file" | sed -ne 's/^:\//#/;s/^://;s/\// /g;s/^#/\//;p'`
    shift
 
    pathcomp=
@@ -20,7 +20,7 @@ for file in ${1+"$@"} ; do
 
      if test ! -d "$pathcomp"; then
         echo "mkdir $pathcomp" 1>&2
-        /bin/mkdir "$pathcomp" || errstatus=$?
+        mkdir "$pathcomp" || errstatus=$?
      fi
 
      pathcomp="$pathcomp/"
diff --git a/omalloc/Makefile.in b/omalloc/Makefile.in
index 1dd2e36..98a7e95 100644
--- a/omalloc/Makefile.in
+++ b/omalloc/Makefile.in
@@ -180,22 +180,22 @@ configure: configure.in
 ##
 install-nolns: install
 
-#install-libsingular:
-#	$(MKINSTALLDIRS) $(includedir)/singular
-#	$(INSTALL) omalloc.h $(includedir)/singular
+install-libsingular:
+	$(MKINSTALLDIRS) $(includedir)/singular
+	$(INSTALL) omalloc.h $(includedir)/singular
 
 install install-libsingular: all
-	$(MKINSTALLDIRS) $(DESTDIR)$(libdir)
-	$(MKINSTALLDIRS) $(DESTDIR)$(includedir)
-	$(INSTALL_DATA) libomalloc.a $(DESTDIR)$(libdir)
-	$(RANLIB) $(DESTDIR)$(libdir)/libomalloc.a
-	$(INSTALL_DATA) libomalloc_ndebug.a $(DESTDIR)$(libdir)
-	$(RANLIB) $(DESTDIR)$(libdir)/libomalloc_ndebug.a
-	$(INSTALL_DATA) omalloc.o $(DESTDIR)$(libdir)
-	$(INSTALL_DATA) omalloc_debug.o $(DESTDIR)$(libdir)
-	$(INSTALL_DATA) omalloc.h $(DESTDIR)$(includedir)
-	$(INSTALL_DATA) omlimits.h $(DESTDIR)$(includedir)
-	$(INSTALL_DATA) mylimits.h $(DESTDIR)$(includedir)
+	$(MKINSTALLDIRS) $(libdir)
+	$(MKINSTALLDIRS) $(includedir)
+	$(INSTALL_DATA) libomalloc.a $(libdir)
+	$(RANLIB) $(libdir)/libomalloc.a
+	$(INSTALL_DATA) libomalloc_ndebug.a $(libdir)
+	$(RANLIB) $(libdir)/libomalloc_ndebug.a
+	$(INSTALL_DATA) omalloc.o $(libdir)
+	$(INSTALL_DATA) omalloc_debug.o $(libdir)
+	$(INSTALL_DATA) omalloc.h $(includedir)
+	$(INSTALL_DATA) omlimits.h $(includedir)
+	$(INSTALL_DATA) mylimits.h $(includedir)
 
 install_all: install libomalloc_p.a
 	$(INSTALL_DATA) libomalloc_p.a $(libdir)

-- 
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