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authorPaul Menzel <pmenzel@molgen.mpg.de>2016-11-29 10:30:44 +0100
committerNico Huber <nico.h@gmx.de>2017-01-22 19:26:26 +0100
commitacbb70b810c6eb17e403c37fa2888b479e5b23a9 (patch)
treee79262bdb5aea0540a8177333978fa42f14cd106 /Makefile.inc
parent72353056852f5fec15763f2b8ab42e6931c354fb (diff)
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, which is also what the current coreboot toolchain with GCC 5.3 is using. [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> Reviewed-on: https://review.coreboot.org/17636 Reviewed-by: Julius Werner <jwerner@chromium.org> Reviewed-by: Arthur Heymans <arthur@aheymans.xyz> Tested-by: build bot (Jenkins) Tested-by: Raptor Engineering Automated Test Stand <noreply@raptorengineeringinc.com>
Diffstat (limited to 'Makefile.inc')
-rw-r--r--Makefile.inc2
1 files changed, 1 insertions, 1 deletions
diff --git a/Makefile.inc b/Makefile.inc
index c5ce30f2b1..0c6b3512a0 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