diff -up yelp-2.25.1/configure.in.libxul yelp-2.25.1/configure.in
--- yelp-2.25.1/configure.in.libxul	2009-03-02 01:13:20.000000000 -0500
+++ yelp-2.25.1/configure.in	2009-03-02 08:03:44.000000000 -0500
@@ -251,7 +251,7 @@ if test "$MOZILLA" = "libxul-embedding" 
 	PKG_CHECK_MODULES([MOZILLA_COMPONENT],[$MOZILLA $gecko_cv_extra_pkg_dependencies])
 	MOZILLA_COMPONENT_CFLAGS="$MOZILLA_COMPONENT_CFLAGS `$PKG_CONFIG --cflags ${gecko_cv_gecko}` `$PKG_CONFIG --define-variable=includetype=unstable --cflags ${gecko_cv_gecko}`"
 else
-	PKG_CHECK_MODULES([MOZILLA_COMPONENT],[${gecko_cv_gecko}-xpcom >= $gecko_min_version $gecko_cv_extra_pkg_dependencies])
+	PKG_CHECK_MODULES([MOZILLA_COMPONENT],[${gecko_cv_gecko} >= $gecko_min_version $gecko_cv_extra_pkg_dependencies])
 fi
 
 # Set flags