From 6802a3f6ca005138969a8badfa91abae2184de9f Mon Sep 17 00:00:00 2001
From: Joel Rosdahl <joel@rosdahl.net>
Date: Thu, 5 Jan 2012 15:58:50 +0100
Subject: [PATCH] Hash mtime or content of GCC plugins specified with -fplugin=

---
 ccache.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/ccache.c b/ccache.c
index cd9d08c09..0af8c0909 100644
--- a/ccache.c
+++ b/ccache.c
@@ -936,6 +936,13 @@ calculate_object_hash(struct args *args, struct mdfour *hash, int direct_mode)
 			continue;
 		}
 
+		if (str_startswith(args->argv[i], "-fplugin=")
+		    && stat(args->argv[i] + 9, &st) == 0) {
+			hash_delimiter(hash, "plugin");
+			hash_compiler(hash, &st, args->argv[i] + 9, false);
+			continue;
+		}
+
 		/* All other arguments are included in the hash. */
 		hash_delimiter(hash, "arg");
 		hash_string(hash, args->argv[i]);
-- 
2.47.2