[SCM] Minimal buy-in FITS library and utility package branch, master, updated. c32f08b5bb0c1a5b54cfee5f2fa50fa71199195f

[Bernhard R. Link]

* Ole Streicher <debian at liska.ath.cx> [120114 19:18]:
>     Link against shared libs (libfuntools.so, and external libwcstools.so)
> 
> +++ b/debian/patches/use_shared_libwcstools.patch
> @@ -0,0 +1,25 @@
> +Author: Ole Streicher <debian at liska.ath.cx>
> +Description: Use the shared libwcstools package instead of the convienence copy.
> +--- sao-funtools-1.4.4.orig/Makefile.in
> ++++ sao-funtools-1.4.4/Makefile.in
> +@@ -60,8 +60,8 @@ FITSY_INC =		-I./fitsy
> + # FITSY_LIBS =		-L./fitsy -lfitsy
> + 
> + # wcs files are in the wcs subdirectory
> +-WCS_INC =		-I./wcs
> +-# WCS_LIBS =		-L./wcs -lwcs
> ++WCS_INC =		-I/usr/include/wcstools
> ++WCS_LIBS =		-lwcstools
> + 
> + # filter files are in the filter subdirectory
> + FILTER_INC =        	-I./filter
> +@@ -188,7 +188,7 @@ DEVEL =
> + 
> + # Subdirectories to run make in for the primary targets.
> + 
> +-SUBLIBS =	util fitsy wcs filter
> ++SUBLIBS =	util fitsy filter
> + 
> + SUBDIRS =	$(SUBLIBS) gnu funtest faq
> + 
> +

Is there a reason why this is a patch and not simply some make argument
in debian/rules? (it looks like it is only changed variable assignments).