Commit cafa0010cd51 ("Raise the minimum required gcc version to 4.6") bumped the minimum GCC version to 4.6 for all architectures.
'$(call cc-option,-fno-unit-at-a-time)' is now dead code since '$(cc-version) -lt 0400' is always false. Signed-off-by: Masahiro Yamada <yamada.masah...@socionext.com> --- arch/x86/Makefile.um | 8 ++------ 1 file changed, 2 insertions(+), 6 deletions(-) diff --git a/arch/x86/Makefile.um b/arch/x86/Makefile.um index 91085a0..577976b 100644 --- a/arch/x86/Makefile.um +++ b/arch/x86/Makefile.um @@ -26,12 +26,8 @@ cflags-y += $(call cc-option,-mpreferred-stack-boundary=2) # an unresolved reference. cflags-y += -ffreestanding -# Disable unit-at-a-time mode on pre-gcc-4.0 compilers, it makes gcc use -# a lot more stack due to the lack of sharing of stacklots. Also, gcc -# 4.3.0 needs -funit-at-a-time for extern inline functions. -KBUILD_CFLAGS += $(shell if [ $(cc-version) -lt 0400 ] ; then \ - echo $(call cc-option,-fno-unit-at-a-time); \ - else echo $(call cc-option,-funit-at-a-time); fi ;) +# gcc 4.3.0 needs -funit-at-a-time for extern inline functions. +KBUILD_CFLAGS += $(call cc-option,-funit-at-a-time) KBUILD_CFLAGS += $(cflags-y) -- 2.7.4