+/**
+ expand GCC_ATTRIBUTE if GCC is in use. See :
+ http://gcc.gnu.org/onlinedocs/gcc/Function-Attributes.html
+
+ To see gcc pre-defines for c:
+ gcc -E -dM -x c /dev/null
+*/
+
+#ifdef __GNUC__
+#if __GNUC__ >= 4
+#define ZEBRA_GCC_ATTR(x) __attribute__ (x)
+#endif
+#endif
+
+#ifndef ZEBRA_GCC_ATTR
+#define ZEBRA_GCC_ATTR(x)
+#endif
+