diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 70ae7f207d6..f5ef6fc8e6f 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2013-09-20  Basile Starynkevitch  <basile@starynkevitch.net>
+
+	* plugin.c (parse_plugin_arg_opt): Accept equal sign inside 
+          plugin argument.
+
 2013-09-20  Basile Starynkevitch  <basile@starynkevitch.net>
 
        * gengtype.c (file_rules): Added rule for *.cc files.
diff --git a/gcc/plugin.c b/gcc/plugin.c
index b269dfa3971..3b39a0b30d9 100644
--- a/gcc/plugin.c
+++ b/gcc/plugin.c
@@ -241,16 +241,13 @@ parse_plugin_arg_opt (const char *arg)
         }
       else if (*ptr == '=')
         {
-          if (key_parsed)
-            {
-              error ("malformed option -fplugin-arg-%s (multiple '=' signs)",
-		     arg);
-              return;
-            }
-          key_len = len;
-          len = 0;
-          value_start = ptr + 1;
-          key_parsed = true;
+	  if (!key_parsed) 
+	    {
+	      key_len = len;
+	      len = 0;
+	      value_start = ptr + 1;
+	      key_parsed = true;
+	    }
           continue;
         }
       else