Don't search system directories for renderer lib

code/sys/sys_main.c

@@ -417,12 +417,14 @@ from executable path, then fs_basepath.
 =================
 */
 
-void *Sys_LoadDll(const char *name)
+void *Sys_LoadDll(const char *name, qboolean useSystemLib)
 {
 	void *dllhandle;
 	
-	Com_Printf("Try loading \"%s\"...\n", name);
-	if(!(dllhandle = Sys_LoadLibrary(name)))
+	if(useSystemLib)
+		Com_Printf("Try loading \"%s\"...\n", name);
+	
+	if(!useSystemLib || !(dllhandle = Sys_LoadLibrary(name)))
 	{
 		const char *topDir;
 		char libPath[MAX_OSPATH];