to speed up and reduce memory use of your programs.
endef
-CPU := $(patsubst x86_64,amd64,$(patsubst x86,i386,$(LINUX_KARCH)))
+CPU := $(patsubst x86_64,amd64,$(patsubst x86,i386,$(patsubst um,$(ARCH),$(LINUX_KARCH))))
CONFIGURE_VARS += \
UNAME_R=$(LINUX_VERSION)