--- configure.ac.xrul	2008-08-18 21:23:15.000000000 +0200
+++ configure.ac	2008-08-18 21:51:33.000000000 +0200
@@ -450,8 +450,8 @@
     if "$PKG_CONFIG" --exists "$gecko_provider-plugin >= 1.9"; then
       MOZILLA_INCLUDE_ROOT=`$PKG_CONFIG --cflags-only-I $gecko_provider-plugin`
       MOZILLA_LIB_ROOT=`$PKG_CONFIG --variable=sdkdir $gecko_provider-plugin`/bin
-      MOZILLA_LIB_DIR_SEARCH="$MOZILLA_LIB_ROOT"
-      MOZILLA_IDLDIR=`$PKG_CONFIG --variable=idldir libxul`/`$PKG_CONFIG --variable=includetype libxul`
+      MOZILLA_LIB_DIR_SEARCH=`$PKG_CONFIG --variable=libdir libxul`
+      MOZILLA_IDLDIR=`$PKG_CONFIG --variable=idldir libxul`
     else
       dnl Note: with the infos from mozilla-plugin.pc
       dnl we got all includes and libraries for the C interface
@@ -480,7 +480,7 @@
   MOZILLA_CFLAGS="$MOZILLA_CFLAGS -I$MOZILLA_INCLUDE_ROOT"
 
   dnl See if xpidl is found.
-  XPIDL="$MOZILLA_LIB_ROOT/xpidl"
+  XPIDL="$MOZILLA_LIB_DIR_SEARCH/xpidl"
   if test ! -x "$XPIDL"; then
     echo "ERROR:"
     echo "The utility $XPIDL was not found. Please check your development packages."