some updates to the Linux build system - obtained a core binary and all required modules

git-svn-id: svn://svn.icculus.org/gtkradiant/GtkRadiant/branches/ZeroRadiant@180 8a3a26a2-13c4-0310-b231-cf6edde360e5

plugins/mapxml/plugin.cpp

@@ -21,8 +21,13 @@ static const XMLConfigEntry_t entries[] =
     { SHADERS_MAJOR, SYN_REQUIRE, sizeof(g_ShadersTable), &g_ShadersTable },    
     { NULL, SYN_UNKNOWN, 0, NULL } };
   
-extern "C" CSynapseClient* SYNAPSE_DLL_EXPORT Synapse_EnumerateInterfaces (const char *version, CSynapseServer *pServer)
-{
+#if __GNUC__ >= 4
+#pragma GCC visibility push(default)
+#endif
+extern "C" CSynapseClient* SYNAPSE_DLL_EXPORT Synapse_EnumerateInterfaces( const char *version, CSynapseServer *pServer ) {
+#if __GNUC__ >= 4
+#pragma GCC visibility pop
+#endif
   if (strcmp(version, SYNAPSE_VERSION))
   {
     Syn_Printf("ERROR: synapse API version mismatch: should be '" SYNAPSE_VERSION "', got '%s'\n", version);