Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!XEROX.COM!Leisner.Henr
From: Leisner.Henr@XEROX.COM (Marty)
Newsgroups: gnu.gcc.bug
Subject: builtin_alloca
Message-ID: <890428-141307-5308@Xerox>
Date: 28 Apr 89 21:12:57 GMT
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Distribution: gnu
Organization: GNUs Not Usenet
Lines: 21

Where is builtin_alloca documented?  I can't find it.

Some code (i.e. GNUmake) has code like:
#ifdef  __GNUC__
#define alloca(n)       __builtin_alloca (n)
#else   /* Not GCC.  */

I built gcc V1.34 on a National genix system and it don't know nothin'
about  __builtin_alloca (passes it to the linker which responds with
undefined external messages).

Is __builtin_alloca supposed to be in all gcc compilers (like the sun4
compiler?).


marty
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