--- avifile0.7-0.7.37/configure.in.orig	2003-07-10 20:34:58.000000000 +0200
+++ avifile0.7-0.7.37/configure.in	2003-07-10 21:13:57.000000000 +0200
@@ -747,10 +747,11 @@
     AC_ARG_ENABLE(libmad, [  --enable-libmad         use system MAD library. (autodetected)],
 		  [], enable_libmad=yes)
     MAD_LIBS="-lmad"
+    if test x$enable_libmad != xyes; then
     save_LIBS=$LIBS
-dnl FIXME AC_CHECK_LIB(mad, mad_stream_init, [], [ MAD_LIBS=""; enable_libmad=no ])
-    enable_libmad=no
+    AC_CHECK_LIB(mad, mad_stream_init, [], [ MAD_LIBS=""; enable_libmad=no ])
     LIBS=$save_LIBS
+    fi
 fi
 AC_SUBST(MAD_LIBS)