commit 34f40c7bfe26170937b39a4da495d3b364f94473
author Rich Lane <rlane@bigswitch.com> Thu Mar 28 10:36:57 2013 -0700
committer Rich Lane <rlane@bigswitch.com> Sat Apr 06 15:53:41 2013 -0700
tree 96539f51f1d82163edbf652fd5131a9cbb117bf3
parent d76e492c54a415051e994a3b0633bddf9825b864

loci: only ignore warnings supported by the compiler

GCC < 4.6 throws an error when we try to ignore unused-but-set-variable.

c_gen/c_code_gen.py

diff --git a/c_gen/c_code_gen.py b/c_gen/c_code_gen.py
index 7042312..09c4f2f 100644
--- a/c_gen/c_code_gen.py
+++ b/c_gen/c_code_gen.py
@@ -756,11 +756,19 @@
  *
  ****************************************************************/
 
-#if __GNUC__ >= 3
+#ifdef __GNUC__
+#include <features.h>
+
+#if __GNUC_PREREQ(4,4)
 #pragma GCC optimize ("s")
+#endif
+
+#if __GNUC_PREREQ(4,6)
 #pragma GCC diagnostic ignored "-Wunused-but-set-variable"
 #endif
 
+#endif
+
 #include <loci/loci.h>
 #include <loci/of_object.h>
 #include "loci_log.h"