$OpenBSD: patch-configure_in,v 1.6 2012/05/08 12:49:45 landry Exp $
--- configure.in.orig	Thu Feb  5 01:55:38 2009
+++ configure.in	Wed May  2 16:43:37 2012
@@ -1,7 +1,7 @@
 AC_PREREQ(2.50)
 AC_INIT(FAAC, 1.28, faac-dev@lists.sourceforge.net)
 AC_CONFIG_AUX_DIR(.)
-AM_INIT_AUTOMAKE
+AM_INIT_AUTOMAKE(faac, 1.28)
 
 AM_CONFIG_HEADER(config.h)
 
@@ -28,14 +28,17 @@ AC_CHECK_DECL(strcasecmp, MY_DEFINE(HAVE_STRCASECMP))
 AC_CHECK_LIB(gnugetopt, getopt_long)
 
 AM_CONDITIONAL(WITH_MP4V2, false)
+AM_CONDITIONAL(WITH_EXT_MP4V2, false)
 
 AC_CHECK_DECLS([MP4Create, MP4MetadataDelete],
                AC_CHECK_LIB(mp4v2, MP4MetadataDelete, external_mp4v2=yes,
-                            external_mp4v2=no, -lstdc++),
-               external_mp4v2=no, [#include <mp4.h>])
+                            external_mp4v2=no, -lstdc++ -lm),
+               external_mp4v2=no, [#include <mp4v2/mp4v2.h>])
 
 if test x$external_mp4v2 = xyes; then
   AC_MSG_NOTICE([*** Building with external mp4v2 ***])
+  AM_CONDITIONAL(WITH_EXT_MP4V2, true)
+  MY_DEFINE(HAVE_LIBMP4V2)
 else
   if test x$WITHMP4V2 = xyes; then
      AC_MSG_NOTICE([*** Building with internal mp4v2 ***])