[PATCH] Fix PR68029

	PR driver/68029
	* opts-common.c (prune_options): Don't ignore -fdiagnostics-color
	if it is the first parameter.

From-SVN: r231150

gcc/ChangeLog

+2015-11-27  Jiri Engelthaler  <engycz@gmail.com>
+
+	PR driver/68029
+	* opts-common.c (prune_options): Don't ignore -fdiagnostics-color 
+	if it is the first parameter.
+
 2015-12-01  Richard Sandiford  <richard.sandiford@arm.com>
 
 	PR tree-optimization/68577

gcc/opts-common.c

@@ -885,7 +885,7 @@ keep:
 	}
     }
 
-  if (fdiagnostics_color_idx > 1)
+  if (fdiagnostics_color_idx >= 1)
     {
       /* We put the last -fdiagnostics-color= at the first position
 	 after argv[0] so it can take effect immediately.  */