-Wstrict-prototype is added to KBUILD_CFLAGS first, then overridden by -Werror=strict-prototype later. Let's add -Werror=strict-prototypes unconditionally because it is supported by GCC 4.6, and also by Clang. Signed-off-by: Masahiro Yamada <yamada.masahiro@xxxxxxxxxxxxx> --- Makefile | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) diff --git a/Makefile b/Makefile index 3bbc16a..bcb943e 100644 --- a/Makefile +++ b/Makefile @@ -423,7 +423,7 @@ LINUXINCLUDE := \ $(USERINCLUDE) KBUILD_AFLAGS := -D__ASSEMBLY__ -fno-PIE -KBUILD_CFLAGS := -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs \ +KBUILD_CFLAGS := -Wall -Wundef -Werror=strict-prototypes -Wno-trigraphs \ -fno-strict-aliasing -fno-common -fshort-wchar -fno-PIE \ -Werror-implicit-function-declaration \ -Wno-format-security \ @@ -828,9 +828,6 @@ KBUILD_CFLAGS += $(call cc-option,-fconserve-stack) # disallow errors like 'EXPORT_GPL(foo);' with missing header KBUILD_CFLAGS += $(call cc-option,-Werror=implicit-int) -# require functions to have arguments in prototypes, not empty 'int foo()' -KBUILD_CFLAGS += $(call cc-option,-Werror=strict-prototypes) - # Prohibit date/time macros, which would make the build non-deterministic KBUILD_CFLAGS += $(call cc-option,-Werror=date-time) -- 2.7.4
