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authorJoseph Myers <joseph@codesourcery.com>2015-10-27 21:47:22 +0000
committerJoseph Myers <joseph@codesourcery.com>2015-10-27 21:47:22 +0000
commit783dd2d3af5aad76829e61ab5abeac5d466971f6 (patch)
treeca5241bb4e2ed9dcc33ff2e44eb924d9e8a2f283 /configure
parent3e2ee6f0e3471ceb4c49f8287676a7050401bf8f (diff)
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Use -std=gnu11 instead of -std=gnu99.
Now that GCC 4.7 or later is required to build glibc, this patch moves the build from using -std=gnu99 to -std=gnu11 (option added in 4.7). This allows use of C11 features from GCC's headers, such as new float.h macros and max_align_t. Tested for x86_64 and x86 (testsuite; installed stripped shared libraries are unchanged by the patch on x86_64, while I see some slight code reordering of no significance on x86). * Makeconfig (CFLAGS): Use -std=gnu11 instead of -std=gnu99. * Makefile ($(objpfx)c++-types-check.out): Filter out -std=gnu11 instead of -std=gnu99. * configure.ac (systemtap): Test with -std=gnu11 instead of -std=gnu99. * configure: Regenerated. * math/gen-auto-libm-tests.c: Use -std=gnu11 instead of -std=gnu99 in compilation command in comment.
Diffstat (limited to 'configure')
-rwxr-xr-xconfigure2
1 files changed, 1 insertions, 1 deletions
diff --git a/configure b/configure
index 22e18aa69e..d8e2a68295 100755
--- a/configure
+++ b/configure
@@ -3579,7 +3579,7 @@ if ${libc_cv_sdt+:} false; then :
$as_echo_n "(cached) " >&6
else
old_CFLAGS="$CFLAGS"
- CFLAGS="-std=gnu99 $CFLAGS"
+ CFLAGS="-std=gnu11 $CFLAGS"
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
#include <sys/sdt.h>