Add -Werror=implicit-function-declaration as Linux does.
If you do not check the prototype, it may go wrong run-time.
It is better to break the build, and require to include correct
headers.
Signed-off-by: Masahiro Yamada <yamada.masah...@socionext.com>
---
Makefile | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/Makefile b/Makefile
index cc99873062..f8b136a07f 100644
--- a/Makefile
+++ b/Makefile
@@ -419,7 +419,7 @@ CHECKFLAGS := -D__linux__ -Dlinux -D__STDC__ -Dunix
-D__unix__ \
KBUILD_CPPFLAGS := -D__KERNEL__ -D__UBOOT__
KBUILD_CFLAGS := -Wall -Wstrict-prototypes \
- -Wno-format-security \
+ -Werror=implicit-function-declaration -Wno-format-security \
-fno-builtin -ffreestanding $(CSTD_FLAG)
KBUILD_CFLAGS += -fshort-wchar -fno-strict-aliasing
KBUILD_AFLAGS := -D__ASSEMBLY__
--
2.25.1
