diff options
| author | Thomas Petazzoni <thomas.petazzoni@bootlin.com> | 2019-03-30 15:29:23 +0100 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2019-04-03 10:26:46 -0400 |
| commit | d7edeba79b2776a2097adf952b3b392c2dfb036b (patch) | |
| tree | def7b49210e59859d2b8e53d086df287aa9a9f07 /tools/Makefile | |
| parent | ab8fc413028b4fd22492a93ef31223d606cac5a6 (diff) | |
| download | u-boot-d7edeba79b2776a2097adf952b3b392c2dfb036b.tar.gz | |
tools/Makefile: build host tools with -std=gnu99
Parts of the code are using C99 constructs (such as variables declared
inside loops), but also GNU extensions (such as typeof), so using
-std=gnu99 is necessary to build with older versions of gcc that don't
default to building with gnu99.
It fixes the following build failure:
./tools/../lib/crc16.c: In function "crc16_ccitt":
./tools/../lib/crc16.c:70:2: error: "for" loop initial declarations are only allowed in C99 mode
for (int i = 0; i < len; i++)
^
./tools/../lib/crc16.c:70:2: note: use option -std=c99 or -std=gnu99 to compile your code
when building the host tools with gcc 4.7.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Diffstat (limited to 'tools/Makefile')
| -rw-r--r-- | tools/Makefile | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/tools/Makefile b/tools/Makefile index 081383d7a7..d377d85f74 100644 --- a/tools/Makefile +++ b/tools/Makefile @@ -254,7 +254,8 @@ HOST_EXTRACFLAGS += -include $(srctree)/include/compiler.h \ -I$(srctree)/tools \ -DUSE_HOSTCC \ -D__KERNEL_STRICT_NAMES \ - -D_GNU_SOURCE + -D_GNU_SOURCE \ + -std=gnu99 __build: $(LOGO-y) |