$NetBSD: patch-configure.ac,v 1.1 2014/12/30 15:57:10 wiz Exp $
pkgsrc does not use lib64 so don't set it (fixes build on linux).
http://sf.net/p/qoe/code/6817/
BSD systems don't have alloca.h but have alloca in stdlib.h.
http://sourceforge.net/p/qore/code/6300/
--- configure.ac.orig	2009-09-21 11:55:18.000000000 +0000
+++ configure.ac
@@ -129,8 +129,6 @@ if test "$enable_64bit" = "yes"; then
       *linux*)	if test "$GXX" = "yes"; then
 		   CXXFLAGS="$CXXFLAGS -m64"
 		fi
-		LIBSUFFIX=64
-		AC_SUBST(LIBSUFFIX)
 		;;
       *hpux*)	if test "$host_cpu" = "ia64"; then
                     if test -n "`echo $CXX|grep aCC`"; then
@@ -579,6 +577,7 @@ AC_CHECK_MEMBERS([struct stat.st_rdev])
 AC_HEADER_TIME
 AC_STRUCT_TM
 AC_C_VOLATILE
+AC_CHECK_HEADERS([alloca.h])
 
 # turn on optimizations if we know how
 if test "$enable_optimization" = "yes"; then