pidl: use unused attribute only if supported by feature macro

Signed-off-by: Bjoern Jacke <bjacke@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>

diff --git a/pidl/lib/Parse/Pidl/Samba4/Python.pm b/pidl/lib/Parse/Pidl/Samba4/Python.pm
index 76a094b625bec7f1850a44090d5b06692b54033e..578e17d1cbcc887338142fc392a85111d12b0ddb 100644 (file)
--- a/pidl/lib/Parse/Pidl/Samba4/Python.pm
+++ b/pidl/lib/Parse/Pidl/Samba4/Python.pm
@@ -2304,12 +2304,14 @@ $ndr_hdr_include
  * functions
  */
 #ifndef _MAYBE_UNUSED_
-#ifdef HAVE___ATTRIBUTE__
+#ifdef __has_attribute
+#if __has_attribute(unused)
 #define _MAYBE_UNUSED_ __attribute__ ((unused))
 #else
 #define _MAYBE_UNUSED_
 #endif
 #endif
+#endif
 /*
  * These functions are here to ensure they can be optimized out by
  * the compiler based on the constant input values