diff -urNad checkpw.orig/checkpw-1.02/debian/implicit checkpw/checkpw-1.02/debian/implicit
--- checkpw.orig/checkpw-1.02/debian/implicit	2015-02-07 11:14:47.670048375 +0000
+++ checkpw/checkpw-1.02/debian/implicit	2015-02-07 11:20:25.436935790 +0000
@@ -35,7 +35,7 @@
 	    debian/$*/usr/share/doc/$*/changelog'
 	@test -s debian/$*/usr/share/doc/$*/changelog || \
 	  sh -cx 'rm -f debian/$*/usr/share/doc/$*/changelog'
-	@gzip -9 debian/$*/usr/share/doc/$*/changelog*
+	@gzip -9n debian/$*/usr/share/doc/$*/changelog*
 %.deb-docs-docs: %.deb-docs-base
 	@for i in `cat debian/$*.docs 2>/dev/null || :`; do \
 	  if test -d $$i; then \
@@ -54,7 +54,7 @@
 	@if test -r debian/$*.NEWS.Debian; then \
 	  sh -cx 'install -m0644 debian/$*.NEWS.Debian \
 	    debian/$*/usr/share/doc/$*/NEWS.Debian && \
-	      gzip -9 debian/$*/usr/share/doc/$*/NEWS.Debian'; \
+	      gzip -9n debian/$*/usr/share/doc/$*/NEWS.Debian'; \
 	fi
 %.deb-docs-examples: %.deb-docs-docs
 	@rm -rf debian/$*/usr/share/doc/$*/examples
diff -urNad checkpw.orig/checkpw-1.02/debian/rules checkpw/checkpw-1.02/debian/rules
--- checkpw.orig/checkpw-1.02/debian/rules	2015-02-07 11:14:47.670048375 +0000
+++ checkpw/checkpw-1.02/debian/rules	2015-02-07 11:20:13.488409086 +0000
@@ -62,7 +62,7 @@
 	install -d -m0755 '$(DIR)'/usr/share/man/man8
 	install -m0644 debian/checkpw.8 debian/checkapoppw.8 \
 	  '$(DIR)'/usr/share/man/man8/
-	gzip -9 '$(DIR)'/usr/share/man/man8/*.8
+	gzip -9n '$(DIR)'/usr/share/man/man8/*.8
 	# service directories
 	for i in pop apop; do \
 	  install -d -m0755 '$(DIR)'/usr/share/doc/checkpw/etc/$$i/log && \