[Python-Dev] [win32] Killing MSVC's _alloca (original) (raw)

Gerhard Haering gerhard.haering@gmx.de
Sat, 5 Oct 2002 03:30:32 +0200

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• Christian Tismer <tismer@tismer.com> [2002-10-04 18:16 -0700]:

  Martin v. Loewis wrote: >Guido van Rossum <guido@python.org> writes: > > >>>Doesn't MSVC have alloca? >> > >>It seems that it does. > > >Without checking: It probably has this only if STDC is not >defined. MSVC hides all non-standard symbols if STDC is defined - >either by compiler switches, or in some application header.

  Hmm. I had this problem (no alloca, no idea why) and defined it by a macro in this case.

I've now installed MSVC6SP4 and verified that with my patch Python still builds ok. Obviously, Python's compiler options for MSVC don't define STDC.

Is it cleaner to undefine STDC instead?

It'd be cleaner to use either _alloca or alloca, but not both like the current M$VC specific code does.

-- Gerhard

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