This is mostly for variables that are only used in asserts and cause
unused-but-set-variable warnings in release builds. Could just use
UNUSED directly, but MAYBE_UNUSED should be less confusing and is
similar to what the Linux kernel has.
And yes __attribute__((unused)) can be used on variables on both GCC 4.2
(oldest supported by mesa) and clang 3.0 (just some random old version,
nut sure what's the minimum for mesa).
Signed-off-by: Grazvydas Ignotas <nota...@gmail.com>
---
I have no commit access, if this patch is ok, please someone push.
src/util/macros.h | 2 ++
1 file changed, 2 insertions(+)
diff --git a/src/util/macros.h b/src/util/macros.h
index 0c8958f..f081bb8 100644
--- a/src/util/macros.h
+++ b/src/util/macros.h
@@ -204,6 +204,8 @@ do { \
#define UNUSED
#endif
+#define MAYBE_UNUSED UNUSED
+
#ifdef HAVE_FUNC_ATTRIBUTE_WARN_UNUSED_RESULT
#define MUST_CHECK __attribute__((warn_unused_result))
#else
--
2.7.4
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