From: tedu <tedu@openbsd.org>
Date: Thu, 15 Jan 2015 19:55:58 +0000 (+0000)
Subject: we don't have an alloca() symbol anywhere in libc, don't prototype it.
X-Git-Url: http://artulab.com/gitweb/?a=commitdiff_plain;h=af4f502b8bf6823323964c31db90d47d7892a45d;p=openbsd

we don't have an alloca() symbol anywhere in libc, don't prototype it.
instead, #define to __builtin_alloca. if that doesn't work, you're hosed.
from an old discussion about the perils of alloca. (don't use alloca!)
---

diff --git a/include/stdlib.h b/include/stdlib.h
index d048e704242..fd2fc278017 100644
--- a/include/stdlib.h
+++ b/include/stdlib.h
@@ -1,4 +1,4 @@
-/*	$OpenBSD: stdlib.h,v 1.62 2014/12/08 21:45:19 deraadt Exp $	*/
+/*	$OpenBSD: stdlib.h,v 1.63 2015/01/15 19:55:58 tedu Exp $	*/
 /*	$NetBSD: stdlib.h,v 1.25 1995/12/27 21:19:08 jtc Exp $	*/
 
 /*-
@@ -267,7 +267,7 @@ int	mkostemp(char *, int);
 #endif
 
 #if __BSD_VISIBLE
-void	*alloca(size_t); 
+#define alloca(n) __builtin_alloca(n)
 
 char	*getbsize(int *, long *);
 char	*cgetcap(char *, const char *, int);