--- ccache-3.2.1-orig/ccache.c	2014-12-10 20:40:54.000000000 +0100
+++ ccache-3.2.1/ccache.c	2015-01-16 23:46:17.633221231 +0100
@@ -1703,6 +1703,14 @@ cc_process_args(struct args *args, struc
 			goto out;
 		}
 
+		/* -fplugin=libcc1plugin output depends on communication with GDB. */
+		if (str_eq(args->argv[i], "-fplugin=libcc1plugin")) {
+			cc_log("Interactive libcc1plugin cannot be supported");
+			stats_update(STATS_UNSUPPORTED);
+			result = false;
+			goto out;
+		}
+
 		/* These are too hard in direct mode. */
 		if (conf->direct_mode) {
 			if (compopt_too_hard_for_direct_mode(argv[i])) {