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authorimp <imp@FreeBSD.org>2014-10-10 00:35:13 +0000
committerimp <imp@FreeBSD.org>2014-10-10 00:35:13 +0000
commitf7d13532c956ff0178ceb8cfb60505a36a8abce0 (patch)
tree4878059cf8599559cf0dfc8d8204d92a46c24dbb /sys/sys/cdefs.h
parenta2b4dd0675a6c16c348638791e6e1a47cc047997 (diff)
downloadFreeBSD-src-f7d13532c956ff0178ceb8cfb60505a36a8abce0.zip
FreeBSD-src-f7d13532c956ff0178ceb8cfb60505a36a8abce0.tar.gz
For gcc 4.6 and newer, _Static_assert is a keyword, so don't try to
redefine it. It does what we want, and is always available unlike other alternatives.
Diffstat (limited to 'sys/sys/cdefs.h')
-rw-r--r--sys/sys/cdefs.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/sys/sys/cdefs.h b/sys/sys/cdefs.h
index 328ce7c..a0cc52f 100644
--- a/sys/sys/cdefs.h
+++ b/sys/sys/cdefs.h
@@ -288,6 +288,8 @@
#if (defined(__cplusplus) && __cplusplus >= 201103L) || \
__has_extension(cxx_static_assert)
#define _Static_assert(x, y) static_assert(x, y)
+#elif __GNUC_PREREQ__(4,6)
+/* Nothing, gcc 4.6 and higher has _Static_assert built-in */
#elif defined(__COUNTER__)
#define _Static_assert(x, y) __Static_assert(x, __COUNTER__)
#define __Static_assert(x, y) ___Static_assert(x, y)
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