Avoid __GNUC__ warnings when defining DECLARE_DEPRECATED
We need to check that __GNUC__ is defined before trying to use it.
This demands a slightly different way to define DECLARE_DEPRECATED.
@@ -68,10 +68,12 @@ extern "C" {
* still won't see them if the library has been built to disable deprecated
* functions.
*/
+#define DECLARE_DEPRECATED(f) f;
+#ifdef __GNUC__
# if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ > 0)
+# undef DECLARE_DEPRECATED
# define DECLARE_DEPRECATED(f) f __attribute__ ((deprecated));
-#else
-# define DECLARE_DEPRECATED(f) f;
+# endif
#endif
#ifndef OPENSSL_FILE
