$NetBSD: patch-ac,v 1.13 2010/11/07 12:21:10 obache Exp $

portability fix.

--- configure.in.orig	2010-04-13 21:57:34.000000000 +0000
+++ configure.in
@@ -331,7 +331,7 @@ AC_ARG_WITH(modules,
     if test x"$withval" != x; then
       modules_list=`echo "$withval" | sed -e 's/:/ /g'`;
       for amodule in $modules_list; do
-        if test x"$amodule" == xmod_dso ; then
+        if test x"$amodule" = xmod_dso ; then
           AC_MSG_ERROR([use --enable-dso instead of --with-modules=mod_dso for DSO support])
         fi
       done
