applied patch to prevent crashing when libxml DLL doesn't contain some symbols

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@9083 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

diff --git a/contrib/src/xml/xmlpars.cpp b/contrib/src/xml/xmlpars.cpp
index 978dab5fb1f3d0adcea6d35c3726765e21f8a790..7dec0e47bfc10ab8aa791bd5b44c8bad1ae78d18 100644 (file)
--- a/contrib/src/xml/xmlpars.cpp
+++ b/contrib/src/xml/xmlpars.cpp
@@ -121,7 +121,10 @@ static void ReleaseLibxml()
 {
     if (gs_libxmlLoaded)
     {
-        gs_libxmlDLL.xmlCleanupParser();
+        // Check for CleanupParser ..may have failed before initialised 
+        // during LOAD_SYMBOL in LoadLibxml()
+        if (gs_libxmlDLL.xmlCleanupParser) 
+            gs_libxmlDLL.xmlCleanupParser();
         wxDllLoader::UnloadLibrary(gs_libxmlDLL.Handle);
     }
     gs_libxmlLoaded = FALSE;