svn commit: r228859 - head/sys/sys
David Chisnall
theraven at FreeBSD.org
Sat Dec 24 13:28:50 UTC 2011
Author: theraven
Date: Sat Dec 24 13:28:49 2011
New Revision: 228859
URL: http://svn.freebsd.org/changeset/base/228859
Log:
Some GCC-compatibility definitions. Define clang's feature test pseudomacros
to always evaluate to 0 if we are using a compiler that doesn't implement them.
This lets us use the macros easily in standard headers (e.g. stdatomic.h, which
should be the subject of my next commit).
Approved by: dim (mentor)
Modified:
head/sys/sys/cdefs.h
Modified: head/sys/sys/cdefs.h
==============================================================================
--- head/sys/sys/cdefs.h Sat Dec 24 12:28:23 2011 (r228858)
+++ head/sys/sys/cdefs.h Sat Dec 24 13:28:49 2011 (r228859)
@@ -617,4 +617,14 @@
#endif
#endif
+#ifndef __has_feature
+#define __has_feature(x) 0
+#endif
+#ifndef __has_include
+#define __has_include(x) 0
+#endif
+#ifndef __has_builtin
+#define __has_builtin(x) 0
+#endif
+
#endif /* !_SYS_CDEFS_H_ */
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