Guard a few Makefile variables against user environments
commit5c928c06e251b651202f94aaac56cacd3f57c484
authorJohannes Schindelin <johannes.schindelin@gmx.de>
Wed, 25 Mar 2009 16:27:28 +0000 (25 17:27 +0100)
committerJunio C Hamano <gitster@pobox.com>
Wed, 25 Mar 2009 19:12:35 +0000 (25 12:12 -0700)
tree9682d6347a03a4b3b395d6d66657854a9ad9165e
parent89fbda24256157cc43848488429fd20cf3bb21ab
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>
Makefile