On Tue, Jun 11, 2019 at 11:43 AM Nathan Chancellor <natechancellor@xxxxxxxxx> wrote: > Suggested-by: Peter Smith <peter.smith@xxxxxxxxxx> > Signed-off-by: Nathan Chancellor <natechancellor@xxxxxxxxx> I verified this has no negative effect with -Qunused-arguments and the relative position of the two flags. The build failure is much more explicit with this patch: > error: unknown warning option '-Wno-psabi' [-Werror,-Wunknown-warning-option] Tested-by: Nick Desaulniers <ndesaulniers@xxxxxxxxxx> > --- > Makefile | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/Makefile b/Makefile > index b81e17261250..5f9d09bd2252 100644 > --- a/Makefile > +++ b/Makefile > @@ -528,6 +528,7 @@ ifneq ($(GCC_TOOLCHAIN),) > CLANG_FLAGS += --gcc-toolchain=$(GCC_TOOLCHAIN) > endif > CLANG_FLAGS += -no-integrated-as > +CLANG_FLAGS += -Werror=unknown-warning-option > KBUILD_CFLAGS += $(CLANG_FLAGS) > KBUILD_AFLAGS += $(CLANG_FLAGS) > export CLANG_FLAGS > -- > 2.22.0 > -- Thanks, ~Nick Desaulniers