Re: [PATCH 17/19] Portable alloca for Git

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On Fri, Feb 28, 2014 at 06:19:58PM +0100, Erik Faye-Lund wrote:
> On Fri, Feb 28, 2014 at 6:00 PM, Kirill Smelkov <kirr@xxxxxxxxxx> wrote:
> > On Fri, Feb 28, 2014 at 02:50:04PM +0100, Erik Faye-Lund wrote:
> >> On Fri, Feb 28, 2014 at 2:44 PM, Erik Faye-Lund <kusmabite@xxxxxxxxx> wrote:
> >> > On Mon, Feb 24, 2014 at 5:21 PM, Kirill Smelkov <kirr@xxxxxxxxxx> wrote:
> >> >> diff --git a/Makefile b/Makefile
> >> >> index dddaf4f..0334806 100644
> >> >> --- a/Makefile
> >> >> +++ b/Makefile
> >> >> @@ -316,6 +321,7 @@ endif
> >> >>  ifeq ($(uname_S),Windows)
> >> >>         GIT_VERSION := $(GIT_VERSION).MSVC
> >> >>         pathsep = ;
> >> >> +       HAVE_ALLOCA_H = YesPlease
> >> >>         NO_PREAD = YesPlease
> >> >>         NEEDS_CRYPTO_WITH_SSL = YesPlease
> >> >>         NO_LIBGEN_H = YesPlease
> >> >
> >> > In MSVC, alloca is defined in in malloc.h, not alloca.h:
> >> >
> >> > http://msdn.microsoft.com/en-us/library/wb1s57t5.aspx
> >> >
> >> > In fact, it has no alloca.h at all. But we don't have malloca.h in
> >> > mingw either, so creating a compat/win32/alloca.h that includes
> >> > malloc.h is probably sufficient.
> >>
> >> "But we don't have alloca.h in mingw either", sorry.
> >
> > Don't we have that for MSVC already in
> >
> >     compat/vcbuild/include/alloca.h
> >
> > and
> >
> >     ifeq ($(uname_S),Windows)
> >         ...
> >         BASIC_CFLAGS = ... -Icompat/vcbuild/include ...
> >
> >
> > in config.mak.uname ?
> 
> Ah, of course. Thanks for setting me straight!
> 
> > And as I've not touched MINGW part in config.mak.uname the patch stays
> > valid as it is :) and we can incrementally update what platforms have
> > working alloca with follow-up patches.
> >
> > In fact that would be maybe preferred, for maintainers to enable alloca
> > with knowledge and testing, as one person can't have them all at hand.
> 
> Yeah, you're probably right.

Erik, the patch has been merged into pu today. Would you please
follow-up with tested MINGW change?

Thanks beforehand,
Kirill
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