$OpenBSD: patch-configure_ac,v 1.1.1.1 2006/06/01 01:20:25 avsm Exp $
--- configure.ac.orig	Mon May 29 05:46:05 2006
+++ configure.ac	Mon May 29 05:46:19 2006
@@ -14,6 +14,7 @@ AC_PROG_CC
 
 AC_CHECKING(for C header files)
 AC_HEADER_STDC
+AC_FUNC_ALLOCA
 
 AC_CHECKING(libraries)
 
