[PATCH] t/Makefile: pass test opts to valgrind target properly

[Jeff King <peff@peff.net>]

The valgrind target just reinvokes make with GIT_TEST_OPTS
set to "--valgrind". However, it does this using an
environment variable, which means GIT_TEST_OPTS in your
config.mak would override it, and "make valgrind" would
simply run the test suite without valgrind on.

Instead, we should pass GIT_TEST_OPTS on the command-line,
overriding what's in config.mak, and take care to append to
whatever the user has there already.

Signed-off-by: Jeff King <peff@peff.net>
---
I'm attempting to run the whole test suite under valgrind for 1.7.6-rc2.
It's been a while since I've done a whole run, as there were some false
positives in strspn on recent glibc which I've finally addressed.

We'll see what it comes up with later today. :)

 t/Makefile |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/t/Makefile b/t/Makefile
index 47cbeb6..9046ec9 100644
--- a/t/Makefile
+++ b/t/Makefile
@@ -71,7 +71,7 @@ gitweb-test:
 	$(MAKE) $(TGITWEB)
 
 valgrind:
-	GIT_TEST_OPTS=--valgrind $(MAKE)
+	$(MAKE) GIT_TEST_OPTS="$(GIT_TEST_OPTS) --valgrind"
 
 # Smoke testing targets
 -include ../GIT-VERSION-FILE
-- 
1.7.6.rc1.38.g97f64