$NetBSD: patch-Makefile.in,v 1.1 2012/10/20 02:25:17 sbd Exp $

Use GZIP_CMD instead of GZIP so that GZIP is exported to the env of a
sub-make and then to gzip itself.

--- Makefile.in.orig	2012-10-19 09:33:04.860211550 +0000
+++ Makefile.in
@@ -318,7 +318,7 @@ dddroot_DATA = NEWS COPYING
 # Subdirectories.
 # -----------------------------------------------------------------------------
 SUBDIRS = themes vsllib ddd
-GZIP = gzip
+GZIP_CMD = gzip
 
 # -----------------------------------------------------------------------------
 # Distribution (via etc/make-final).
@@ -872,7 +872,7 @@ snapshot:
 		> proto-toplev/FILES; \
 	    ( cd proto-toplev; $(TAR) --create --dereference \
 		--verbose --files-from FILES \
-		--file - ) | $(GZIP) -v -9 > $$ddd-$$VER.tar.gz; \
+		--file - ) | $(GZIP_CMD) -v -9 > $$ddd-$$VER.tar.gz; \
 	)
 	rm -fr proto-toplev
 
@@ -900,7 +900,7 @@ htmldist:
 		> proto-toplev/FILES; \
 	    ( cd proto-toplev; $(TAR) --create --dereference \
 		--verbose --files-from FILES \
-		--file - ) | $(GZIP) -v -9 > $$ddd-$$VER-html-manual.tar.gz; \
+		--file - ) | $(GZIP_CMD) -v -9 > $$ddd-$$VER-html-manual.tar.gz; \
 	)
 	rm -fr proto-toplev
 
@@ -928,7 +928,7 @@ picsdist:
 		> proto-toplev/FILES; \
 	    ( cd proto-toplev; $(TAR) --create --dereference \
 		--verbose --files-from FILES \
-		--file - ) | $(GZIP) -v -9 > $$ddd-$$VER-pics.tar.gz; \
+		--file - ) | $(GZIP_CMD) -v -9 > $$ddd-$$VER-pics.tar.gz; \
 	)
 	rm -fr proto-toplev
 $(srcdir)/ChangeLog: $(srcdir)/Makefile.am