Paul Menzel (paulepanter@users.sourceforge.net) just uploaded a new patch set to gerrit, which you can find at https://review.coreboot.org/17636
-gerrit
commit faf0c2a2281431f8472e205f36f73143a7f7d317 Author: Paul Menzel pmenzel@molgen.mpg.de Date: Tue Nov 29 10:30:44 2016 +0100
Makefile.inc: Explicitly set GNU11 as C language standard
Different compiler versions use a different C language standard by default.
GCC 4.9 uses GNU89 by default [1], while GCC 5.x uses GNU11 [2].
The discussion on the mailing list in thread *[RFC] Setting C99 by default* [3] resulted in the preference of C11, which results in build errors.
So explicitly set it to GNU11.
[1] https://gcc.gnu.org/onlinedocs/gcc-4.9.4/gcc/C-Dialect-Options.html [2] https://gcc.gnu.org/onlinedocs/gcc-5.4.0/gcc/Standards.html [3] https://www.coreboot.org/pipermail/coreboot/2016-November/082541.html
Change-Id: If1569618f8044925ff72dcf3543480b34d4f90d6 Signed-off-by: Paul Menzel pmenzel@molgen.mpg.de --- Makefile.inc | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/Makefile.inc b/Makefile.inc index a193158..bf9c908 100644 --- a/Makefile.inc +++ b/Makefile.inc @@ -353,7 +353,7 @@ CPPFLAGS_common += -I$(VBOOT_SOURCE)/firmware/include CPPFLAGS_common += -include $(src)/include/kconfig.h CPPFLAGS_common += -I3rdparty
-CFLAGS_common += -pipe -g -nostdinc +CFLAGS_common += -pipe -g -nostdinc -std=gnu11 CFLAGS_common += -nostdlib -Wall -Wundef -Wstrict-prototypes -Wmissing-prototypes CFLAGS_common += -Wwrite-strings -Wredundant-decls -Wno-trigraphs CFLAGS_common += -Wstrict-aliasing -Wshadow -Wdate-time