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mingw: activate alloca

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Both MSVC and MINGW have alloca(3) definitions in malloc.h, so by moving
win32-compat alloca.h from compat/vcbuild/include/ to compat/win32/ ,
which is included by both MSVC and MINGW CFLAGS, we can make alloca()
work on both those Windows environments.

In MINGW, malloc.h has explicit check for GNUC and if it is so, defines
alloca to __builtin_alloca, so it looks like we don't need to add any
code to here-shipped alloca.h to get optimum performance.

Compile-tested on Windows in MSysGit.

Signed-off-by: Kirill Smelkov <kirr@mns.spb.ru>
Acked-by: Erik Faye-Lund <kusmabite@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Kirill Smelkov 2014-04-09 16:48:27 +04:00 committed by Junio C Hamano
parent 7195fbfaf5
commit 22f4c27e68
2 changed files with 1 additions and 0 deletions
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compat/vcbuild/include/alloca.h → compat/win32/alloca.h
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config.mak.uname
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@ -480,6 +480,7 @@ ifeq ($(uname_S),NONSTOP_KERNEL)
endif
ifneq (,$(findstring MINGW,$(uname_S)))
pathsep = ;
HAVE_ALLOCA_H = YesPlease
NO_PREAD = YesPlease
NEEDS_CRYPTO_WITH_SSL = YesPlease
NO_LIBGEN_H = YesPlease