fix bustage when freetype is not present at compile time.

gfx/src/x11shared/nsFT2FontCatalog.cpp

@@ -119,9 +119,11 @@ nsIPref*     nsFT2FontCatalog::sPref = nsnull;
 NS_IMPL_ISUPPORTS1(nsFT2FontCatalog, nsIFontCatalogService)
 
 nsFT2FontCatalog::nsFT2FontCatalog()
+#ifdef MOZ_ENABLE_FREETYPE2
  : mFontCatalog(nsnull),
    mRange1Language(nsnull),
    mRange2Language(nsnull)
+#endif
 {
 #if (defined(MOZ_ENABLE_FREETYPE2))
   nsresult rv;