-# Mac OS X / Darwin's C preprocessor is Apple specific. It
-# generates numerous errors and warnings. We want to bypass it
-# and use GNU C's cpp. To do this we pass the -traditional-cpp
-# option to the compiler. Note that the -traditional-cpp flag
-# DOES NOT have the same semantics as GNU C's flag, all it does
-# is invoke the GNU preprocessor in stock ANSI/ISO C fashion.
-#
-# Apple's linker is similar, thanks to the new 2 stage linking
-# multiple symbol definitions are treated as errors, hence the
-# -multiply_defined suppress option to turn off this error.
-#
-
-ifeq ($(HOSTOS),darwin)
-# get major and minor product version (e.g. '10' and '6' for Snow Leopard)
-DARWIN_MAJOR_VERSION = $(shell sw_vers -productVersion | cut -f 1 -d '.')
-DARWIN_MINOR_VERSION = $(shell sw_vers -productVersion | cut -f 2 -d '.')
-
-os_x_before = $(shell if [ $(DARWIN_MAJOR_VERSION) -le $(1) -a \
- $(DARWIN_MINOR_VERSION) -le $(2) ] ; then echo "$(3)"; else echo "$(4)"; fi ;)
-
-# Snow Leopards build environment has no longer restrictions as described above
-HOSTCC = $(call os_x_before, 10, 5, "cc", "gcc")
-HOSTCFLAGS += $(call os_x_before, 10, 4, "-traditional-cpp")
-HOSTLDFLAGS += $(call os_x_before, 10, 5, "-multiply_defined suppress")
-else
-HOSTCC = gcc
-endif
-
-ifeq ($(HOSTOS),cygwin)
-HOSTCFLAGS += -ansi
-endif
-
-# We build some files with extra pedantic flags to try to minimize things
-# that won't build on some weird host compiler -- though there are lots of
-# exceptions for files that aren't complaint.
-
-HOSTCFLAGS_NOPED = $(filter-out -pedantic,$(HOSTCFLAGS))
-HOSTCFLAGS += -pedantic
-
-#########################################################################
-#
-# Option checker, gcc version (courtesy linux kernel) to ensure
-# only supported compiler options are used
-#
-CC_OPTIONS_CACHE_FILE := $(OBJTREE)/include/generated/cc_options.mk
-CC_TEST_OFILE := $(OBJTREE)/include/generated/cc_test_file.o
-
--include $(CC_OPTIONS_CACHE_FILE)
-
-cc-option-sys = $(shell mkdir -p $(dir $(CC_TEST_OFILE)); \
- if $(CC) $(CFLAGS) $(1) -S -xc /dev/null -o $(CC_TEST_OFILE) \
- > /dev/null 2>&1; then \
- echo 'CC_OPTIONS += $(strip $1)' >> $(CC_OPTIONS_CACHE_FILE); \
- echo "$(1)"; fi)
-
-ifeq ($(CONFIG_CC_OPT_CACHE_DISABLE),y)
-cc-option = $(strip $(if $(call cc-option-sys,$1),$1,$2))
-else
-cc-option = $(strip $(if $(findstring $1,$(CC_OPTIONS)),$1,\
- $(if $(call cc-option-sys,$1),$1,$2)))
-endif
-
-# cc-version
-# Usage gcc-ver := $(call cc-version)
-cc-version = $(shell $(SHELL) $(SRCTREE)/scripts/gcc-version.sh $(CC))
-binutils-version = $(shell $(SHELL) $(SRCTREE)/scripts/binutils-version.sh $(AS))
-dtc-version = $(shell $(SHELL) $(SRCTREE)/scripts/dtc-version.sh $(DTC))
-
-#
-# Include the make variables (CC, etc...)
-#
-AS = $(CROSS_COMPILE)as
-
-# Always use GNU ld
-LD = $(shell if $(CROSS_COMPILE)ld.bfd -v > /dev/null 2>&1; \
- then echo "$(CROSS_COMPILE)ld.bfd"; else echo "$(CROSS_COMPILE)ld"; fi;)
-
-CC = $(CROSS_COMPILE)gcc
-CPP = $(CC) -E
-AR = $(CROSS_COMPILE)ar
-NM = $(CROSS_COMPILE)nm
-LDR = $(CROSS_COMPILE)ldr
-STRIP = $(CROSS_COMPILE)strip
-OBJCOPY = $(CROSS_COMPILE)objcopy
-OBJDUMP = $(CROSS_COMPILE)objdump
-RANLIB = $(CROSS_COMPILE)RANLIB
-DTC = dtc
-CHECK = sparse
-