[Bugfix] Fix libvnc.so module loading (define listenaddr symbol).

git-svn-id: svn://svn.code.sf.net/p/tigervnc/code/trunk@4005 3789f03b-4d11-0410-bbf8-ca57d06f2519

unix/xserver/hw/vnc/xf86vncModule.cc

@@ -43,6 +43,8 @@ using namespace rfb;
 extern void vncExtensionInit();
 static void vncExtensionInitWithParams(INITARGS);
 
+char *listenaddr = NULL;
+
 static MODULESETUPPROTO(vncSetup);
 
 ExtensionModule vncExt =