[arch][x86] drop march to x86-64
march=x86-64-v2 is not supported on old compilers.
Can fix in the future, but for the moment may as well just drop -v2
since it's not really being used.
@@ -118,7 +118,7 @@ ARCH_COMPILEFLAGS += -march=i686
ARCH_OPTFLAGS := -O2
GLOBAL_DEFINES += X86_LEGACY=0
else ifeq ($(SUBARCH),x86-64)
-ARCH_COMPILEFLAGS += -march=x86-64-v2
+ARCH_COMPILEFLAGS += -march=x86-64
ARCH_OPTFLAGS := -O2
GLOBAL_DEFINES += X86_LEGACY=0
endif
