--- mozilla-release.orig/configure	2011-07-08 03:30:27.000000000 +0200
+++ mozilla-release/configure	2013-02-07 16:38:49.000000000 +0100
@@ -23504,6 +23504,9 @@ fi
     fi
 fi
 
+HOST_LIBIDL_CFLAGS=`env PKG_CONFIG_LIBDIR=${PKG_HOSTLIB_DIR} ${BUILD_LIBIDL_CONFIG} --cflags`
+HOST_LIBIDL_LIBS=`env PKG_CONFIG_LIBDIR=${PKG_HOSTLIB_DIR} ${BUILD_LIBIDL_CONFIG} --libs`
+
 if test -n "$CROSS_COMPILE"; then
     case "$target" in
     *-mingw*)