svn commit: r272881 - in head/sys: conf sys
Warner Losh
imp at FreeBSD.org
Fri Oct 10 00:35:14 UTC 2014
Author: imp
Date: Fri Oct 10 00:35:13 2014
New Revision: 272881
URL: https://svnweb.freebsd.org/changeset/base/272881
Log:
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.
Modified:
head/sys/conf/kern.mk
head/sys/sys/cdefs.h
Modified: head/sys/conf/kern.mk
==============================================================================
--- head/sys/conf/kern.mk Fri Oct 10 00:35:08 2014 (r272880)
+++ head/sys/conf/kern.mk Fri Oct 10 00:35:13 2014 (r272881)
@@ -38,7 +38,7 @@ CWARNEXTRA?= -Wno-error-tautological-com
# building with gcc 4.8 and newer. Nothing older has been tested.
CWARNEXTRA?= -Wno-error=inline -Wno-error=enum-compare -Wno-error=unused-but-set-variable \
-Wno-error=aggressive-loop-optimizations -Wno-error=maybe-uninitialized \
- -Wno-error=unused-local-typedefs -Wno-error=array-bounds -Wno-error=address \
+ -Wno-error=array-bounds -Wno-error=address \
-Wno-error=cast-qual -Wno-error=sequence-point -Wno-error=attributes
.endif
Modified: head/sys/sys/cdefs.h
==============================================================================
--- head/sys/sys/cdefs.h Fri Oct 10 00:35:08 2014 (r272880)
+++ head/sys/sys/cdefs.h Fri Oct 10 00:35:13 2014 (r272881)
@@ -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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