From: Johannes Schindelin <johannes.schindelin@gmx.de>
Date: Wed, 25 Mar 2009 16:27:28 +0000 (+0100)
Subject: Guard a few Makefile variables against user environments
X-Git-Tag: v1.6.3-rc0~94
X-Git-Url: https://git.lorimer.id.au/gitweb.git/diff_plain/5c928c06e251b651202f94aaac56cacd3f57c484?ds=inline;hp=--cc

Guard a few Makefile variables against user environments

Some variables are not initialized in the Makefile, but appended to.  If
the user has those variables in her environment, it will break the
build.

The variable names were found using these commands:

$ s='[ \t]';
$ S='[^ \t]';
$ comm -23 \
<(sed -n "s/^$s*\($S*\)$s$s*+=.*/\1/p" < Makefile |
sort | uniq) \
<(sed -n "s/^$s*\($S*\)$s$s*=.*/\1/p" < Makefile |
sort | uniq)

This fixes msysGit issue 216.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
---

5c928c06e251b651202f94aaac56cacd3f57c484
diff --git a/Makefile b/Makefile
index 320c89786c..7867eaccdb 100644
--- a/Makefile
+++ b/Makefile
@@ -263,6 +263,18 @@ SPARSE_FLAGS = -D__BIG_ENDIAN__ -D__powerpc__
 BASIC_CFLAGS =
 BASIC_LDFLAGS =
 
+# Guard against environment variables
+BUILTIN_OBJS =
+BUILT_INS =
+COMPAT_CFLAGS =
+COMPAT_OBJS =
+LIB_H =
+LIB_OBJS =
+PROGRAMS =
+SCRIPT_PERL =
+SCRIPT_SH =
+TEST_PROGRAMS =
+
 SCRIPT_SH += git-am.sh
 SCRIPT_SH += git-bisect.sh
 SCRIPT_SH += git-filter-branch.sh