config.mak.uname: use clang for Mac OS X 10.6

Gcc under Mac OX 10.6 throws an internal compiler error:

CC combine-diff.o
combine-diff.c: In function ‘diff_tree_combined’:
combine-diff.c:1391: internal compiler error: Segmentation fault

while attempting to build Git at 5b442c4f (tree-diff: catch integer
overflow in combine_diff_path allocation, 2016-02-19).

As clang that ships with the version does not have the same bug,
make Git compile under Mac OS X 10.6 by using clang instead of gcc
to work this around, as it is unlikely that we will see fixed GCC
on that platform.

Later versions of Mac OSX/Xcode only provide clang, and gcc is a
wrapper to it.

Signed-off-by: Torsten Bögershausen <tboegi@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/config.mak.uname b/config.mak.uname
index d6f7980bb91ab7d1e4a02a91407bd8e38461671b..4c68e078e7ac4a9584b2782f278b00fcbe594505 100644 (file)
--- a/config.mak.uname
+++ b/config.mak.uname
@@ -102,6 +102,9 @@ ifeq ($(uname_S),Darwin)
        ifeq ($(shell expr "$(uname_R)" : '[15]\.'),2)
                NO_STRLCPY = YesPlease
        endif
+       ifeq ($(shell test "`expr "$(uname_R)" : '\([0-9][0-9]*\)\.'`" -eq 10 && echo 1),1)
+               CC = clang
+       endif
        ifeq ($(shell test "`expr "$(uname_R)" : '\([0-9][0-9]*\)\.'`" -ge 11 && echo 1),1)
                HAVE_GETDELIM = YesPlease
        endif