.EXPORT_ALL_VARIABLES:

# A directory we use to hold various miscellaneous stuff
NEC_COMMON = $(ROOTDIR)/vendors/NEC/common

############################################################################
#
# The makefiles need to know how to do things in different contexts
# To save some pain we put it all here
#
# First settings we always want for all build
#

CC        = $(CROSS_COMPILE)gcc
AS        = $(CROSS_COMPILE)as
CXX       = $(CROSS_COMPILE)g++
AR        = $(CROSS_COMPILE)ar
LD        = $(CROSS_COMPILE)ld
OBJCOPY   = $(CROSS_COMPILE)objcopy
RANLIB    = $(CROSS_COMPILE)ranlib
ELF2FLT   = elf2flt
STRIPTOOL = $(CROSS_COMPILE)strip
STRIP     = $(STRIPTOOL)

UCLINUX_BUILD_SET = 0			# have we set a special config below

############################################################################
#
# General purpose lib building rules,  uClibc.config uses these when
# possible
#

ifdef UCLINUX_BUILD_LIB

	ifdef CONFIG_LIB_DEBUG
	      CFLAGS  :=  -O2 -g
	else
	      CFLAGS  :=  -O2 -g -fomit-frame-pointer
	endif

	CFLAGS  += $(VENDOR_CFLAGS)

	# don't want all the CFLAGS for uClibc/Config
	ARCH_CFLAGS = $(CFLAGS)
	CFLAGS  += -I$(ROOTDIR)/lib/$(CONFIG_LIBCDIR)/include -I$(ROOTDIR)
	CFLAGS  += -Dlinux -D__linux__ -D__uClinux__ -Dunix

	UCLINUX_BUILD_SET=1

endif

############################################################################
#
# Settings for building user apps
#

ifdef UCLINUX_BUILD_USER

        # Note that we assume the use of uClibc, instead of uC-libc,
        # because uC-libc absolutely will not work for the v850.

	# Use our `flatgcc' wrapper, which in turn invokes uClibc's gcc
	# wrapper, which then invokes gcc (whew!).  The option
	# `--uclibc-use-build-dir' tells uClibc's wrapper that it should
	# use the uClibc build directory to find libraries, etc.

	# Our gcc wrapper script
        FLATGCC = $(NEC_COMMON)/flatgcc

	# The uClibc wrapper that flatgcc calls; this variable is
	# interpreted directly by flatgcc (as an environment variable).
	FLATGCC_CC = $(ROOTDIR)/uClibc/extra/gcc-uClibc/$(ARCH)-uclibc-gcc

	DEFAULT_ELF2FLT_LINKER_SCRIPTS = $(NEC_COMMON)/$(MACHINE)/elf2flt.ld \
					 $(NEC_COMMON)/$(ARCH)/elf2flt.ld    \
					 $(NEC_COMMON)/elf2flt.ld

	# Make an attempt to find the linker script that should be used
        # for elf2flt inputs.  If we can't find one, we fall back to our
        # own copy, $(DEFAULT_ELF2FLT_LINKER_SCRIPT).
	ELF2FLT_SEARCH_BINARY = elf2flt
	ELF2FLT_SEARCH_LINKER_SCRIPT = elf2flt.ld
	ELF2FLT_LOC := $(dir $(firstword $(wildcard $(addsuffix /$(ELF2FLT_SEARCH_BINARY),$(subst :, ,$(PATH))))))
	ELF2FLT_LINKER_SCRIPT := $(firstword $(wildcard $(addsuffix $(ELF2FLT_SEARCH_LINKER_SCRIPT),$(patsubst %/bin/,%/lib/,$(ELF2FLT_LOC))) $(DEFAULT_ELF2FLT_LINKER_SCRIPTS)))

	CC = $(FLATGCC) --uclibc-use-build-dir -T$(ELF2FLT_LINKER_SCRIPT)

	# Passed to elf2flt by flatgcc
	FLTFLAGS :=

	LIBM        = -lm
	LIBNET      = -lnet
	LIBDES      = -ldes
	LIBPCAP     = -lpcap
	LIBSSL      = -lssl
	LIBCRYPTO   = -lcrypto
	LIBCRYPT    = -lcrypt
	LIBGCC      = -lgcc
	LIBIBERTY   = -liberty
	LIBIO       = -lio
	LIBIOSTREAM = -liostream
	LIBSTDCPP   = -lstdc++
	LIBTERMCAP  = -lg

	LDPATH =					\
			-L$(ROOTDIR)/lib/libnet		\
			-L$(ROOTDIR)/lib/libdes		\
			-L$(ROOTDIR)/lib/libpcap	\
			-L$(ROOTDIR)/lib/libg		\
			-L$(ROOTDIR)/lib/libssl

	INCNET  = -I$(ROOTDIR)/lib/libnet
	INCDES  = -I$(ROOTDIR)/freeswan/libdes
	INCGMP  = -I$(ROOTDIR)/lib/libgmp
	INCPCAP = -I$(ROOTDIR)/lib/libpcap
	INCSSL  = -I$(ROOTDIR)/lib/libssl/include

	ifdef CONFIG_USER_DEBUG
	      CFLAGS  :=  -Os -g
	else
	      CFLAGS  :=  -Os -g -fomit-frame-pointer
	endif

	CFLAGS  += $(VENDOR_CFLAGS)
	CFLAGS  += -Dlinux -D__linux__ -Dunix -D__uClinux__ -DEMBED
	CFLAGS  += -I$(ROOTDIR)

	CXXFLAGS = $(CFLAGS) $(INCCXX) -fname-mangling-version-0

	LDFLAGS  = $(CFLAGS)  # we use `flatgcc'
	LDLIBS   = $(LDPATH) $(LIBC)
	CXXLIBS  = $(LDPATH) $(LIBSTDCPP) $(LIBIOSTREAM) $(LIBIO) $(LIBIBERTY)

	UCLINUX_BUILD_SET=1

endif

############################################################################
#
# fall through,  do other config options perhaps
#

ifeq ($(UCLINUX_BUILD_SET),1)
endif

# This is a hack to setup the libc config file
ifeq ($(UCLINUX_BUILD_LIB)+$(findstring uClibc,$(LIBCDIR)),1+uClibc)
all: uClibc/.config
uClibc/.config: $(VENDDIR)/config.uClibc
	cp $? $@
endif

############################################################################