--- gephex-0.4.4.orig/configure.ac	2007-04-29 17:53:44.000000000 +0300
+++ gephex-0.4.4.orig/configure.ac	2008-12-12 16:52:08.000000000 +0200
@@ -236,7 +236,7 @@ 
 
 # check for libmpeg3 
 CHECK_EXTRA_LIB([MPEG3],
-                [AC_CHECK_HEADER([libmpeg3.h],have_mpeg3=yes,have_mpeg3=no)],
+                [AC_CHECK_HEADER([libmpeg3/libmpeg3.h],have_mpeg3=yes,have_mpeg3=no)],
                 [no], [with_mpeg3], [have_mpeg3], [use_mpeg3],
                 [AC_SUBST(MPEG3_LDFLAGS,"-lmpeg3")])
 AM_CONDITIONAL([WITH_MPEG3], test "x$use_mpeg3" = "xyes")