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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 /Makeconfig
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 'Makeconfig')
-rw-r--r--Makeconfig2
1 files changed, 1 insertions, 1 deletions
diff --git a/Makeconfig b/Makeconfig
index c0f5e64ef5..3c5d71e114 100644
--- a/Makeconfig
+++ b/Makeconfig
@@ -882,7 +882,7 @@ CPPFLAGS = $(config-extra-cppflags) $(CPPUNDEFS) $(CPPFLAGS-config) \
 	   $(foreach lib,$(libof-$(basename $(@F))) \
 			 $(libof-$(<F)) $(libof-$(@F)),$(CPPFLAGS-$(lib))) \
 	   $(CPPFLAGS-$(<F)) $(CPPFLAGS-$(@F)) $(CPPFLAGS-$(basename $(@F)))
-override CFLAGS	= -std=gnu99 -fgnu89-inline $(config-extra-cflags) \
+override CFLAGS	= -std=gnu11 -fgnu89-inline $(config-extra-cflags) \
 		  $(filter-out %frame-pointer,$(+cflags)) $(+gccwarn-c) \
 		  $(sysdep-CFLAGS) $(CFLAGS-$(suffix $@)) $(CFLAGS-$(<F)) \
 		  $(CFLAGS-$(@F)) $(tls-model) \