(svn r9560) -Codechange: add support for multiple 'base' directories for newgrf searching.

-Codechange: do not add duplicate files to the newgrf list.

src/newgrf_config.h

@@ -45,6 +45,7 @@ struct GRFError {
 
 struct GRFConfig : public GRFIdentifier {
 	char *filename;
+	char *full_path;
 	char *name;
 	char *info;
 	GRFError *error;