Hi! Joerg Sonnenberger recently committed the attached patch to pkgsrc (for autoconf-2.66) prohibiting AC_FUNC_ALLOCA from defining a prototype on the BSDs.
The reason was: Do not fall through to the implicit prototype as it conflicts with stdlib.h. Please include (something like) this in the next autoconf release. Thanks, Thomas
$NetBSD: patch-aa,v 1.11 2010/07/29 15:49:36 joerg Exp $ Do not fall through to the implicit prototype as it conflicts with stdlib.h. --- lib/autoconf/functions.m4.orig 2010-07-29 15:21:52.000000000 +0000 +++ lib/autoconf/functions.m4 @@ -369,6 +369,8 @@ AC_CACHE_CHECK([for alloca], ac_cv_func_ # ifdef _MSC_VER # include <malloc.h> # define alloca _alloca +# elif defined(__NetBSD__) || defined(__FreeBSD__) || defined(__DragonFly__) || defined(__OpenBSD__) +# include <stdlib.h> # else # ifdef HAVE_ALLOCA_H # include <alloca.h>
