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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 /math/gen-auto-libm-tests.c
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 'math/gen-auto-libm-tests.c')
-rw-r--r--math/gen-auto-libm-tests.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/math/gen-auto-libm-tests.c b/math/gen-auto-libm-tests.c
index 03ec6c4987..2b7bb5a64e 100644
--- a/math/gen-auto-libm-tests.c
+++ b/math/gen-auto-libm-tests.c
@@ -18,7 +18,7 @@
 
 /* Compile this program as:
 
-   gcc -std=gnu99 -O2 -Wall -Wextra gen-auto-libm-tests.c -lmpc -lmpfr -lgmp \
+   gcc -std=gnu11 -O2 -Wall -Wextra gen-auto-libm-tests.c -lmpc -lmpfr -lgmp \
      -o gen-auto-libm-tests
 
    (use of current MPC and MPFR versions recommended) and run it as: