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#
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# This file is part of the flashrom project.
#
# Copyright (C) 2005 coresystems GmbH <stepan@coresystems.de>
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# Copyright (C) 2009,2010 Carl-Daniel Hailfinger
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#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; version 2 of the License.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
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#
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PROGRAM = flashrom
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CC      ?= gcc
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STRIP   ?= strip
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INSTALL = install
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DIFF    = diff
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PREFIX  ?= /usr/local
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MANDIR  ?= $(PREFIX)/share/man
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CFLAGS  ?= -Os -Wall -Wshadow
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EXPORTDIR ?= .
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WARNERROR ?= yes

ifeq ($(WARNERROR), yes)
CFLAGS += -Werror
endif

# FIXME We have to differentiate between host and target arch.
OS_ARCH	?= $(shell uname)
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ifneq ($(OS_ARCH), SunOS)
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STRIP_ARGS = -s
endif
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ifeq ($(OS_ARCH), Darwin)
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CPPFLAGS += -I/opt/local/include -I/usr/local/include
LDFLAGS += -framework IOKit -framework DirectIO -L/opt/local/lib -L/usr/local/lib
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endif
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ifeq ($(OS_ARCH), FreeBSD)
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CPPFLAGS += -I/usr/local/include
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LDFLAGS += -L/usr/local/lib
endif
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ifeq ($(OS_ARCH), OpenBSD)
CPPFLAGS += -I/usr/local/include
LDFLAGS += -L/usr/local/lib
endif
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ifeq ($(OS_ARCH), DOS)
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EXEC_SUFFIX := .exe
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CPPFLAGS += -I../libgetopt -I../libpci/include
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# FIXME Check if we can achieve the same effect with -L../libgetopt -lgetopt
LIBS += ../libgetopt/libgetopt.a
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# Bus Pirate and Serprog are not supported under DOS (missing serial support).
ifeq ($(CONFIG_BUSPIRATE_SPI), yes)
UNSUPPORTED_FEATURES += CONFIG_BUSPIRATE_SPI=yes
else
override CONFIG_BUSPIRATE_SPI = no
endif
ifeq ($(CONFIG_SERPROG), yes)
UNSUPPORTED_FEATURES += CONFIG_SERPROG=yes
else
override CONFIG_SERPROG = no
endif
# Dediprog and FT2232 are not supported under DOS (missing USB support).
ifeq ($(CONFIG_DEDIPROG), yes)
UNSUPPORTED_FEATURES += CONFIG_DEDIPROG=yes
else
override CONFIG_DEDIPROG = no
endif
ifeq ($(CONFIG_FT2232_SPI), yes)
UNSUPPORTED_FEATURES += CONFIG_FT2232_SPI=yes
else
override CONFIG_FT2232_SPI = no
endif
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endif
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CHIP_OBJS = jedec.o stm50flw0x0x.o w39v040c.o w39v080fa.o w29ee011.o \
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	sst28sf040.o m29f400bt.o 82802ab.o pm49fl00x.o \
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	sst49lfxxxc.o sst_fwhub.o flashchips.o spi.o spi25.o
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LIB_OBJS = layout.o

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CLI_OBJS = flashrom.o cli_classic.o cli_output.o print.o
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PROGRAMMER_OBJS = udelay.o programmer.o
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all: pciutils features $(PROGRAM)$(EXEC_SUFFIX)
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# Set the flashrom version string from the highest revision number
# of the checked out flashrom files.
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# Note to packagers: Any tree exported with "make export" or "make tarball"
# will not require subversion. The downloadable snapshots are already exported.
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SVNVERSION := $(shell LC_ALL=C svnversion -cn . 2>/dev/null | sed -e "s/.*://" -e "s/\([0-9]*\).*/\1/" | grep "[0-9]" || LC_ALL=C svn info . 2>/dev/null | awk '/^Revision:/ {print $$2 }' | grep "[0-9]" || LC_ALL=C git svn info . 2>/dev/null | awk '/^Revision:/ {print $$2 }' | grep "[0-9]" || echo unknown)
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RELEASE := 0.9.2
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VERSION := $(RELEASE)-r$(SVNVERSION)
RELEASENAME ?= $(VERSION)
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SVNDEF := -D'FLASHROM_VERSION="$(VERSION)"'
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# Always enable internal/onboard support for now.
CONFIG_INTERNAL ?= yes

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# Always enable serprog for now. Needs to be disabled on Windows.
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CONFIG_SERPROG ?= yes

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# Bitbanging SPI infrastructure is not used yet.
CONFIG_BITBANG_SPI ?= no

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# Always enable 3Com NICs for now.
CONFIG_NIC3COM ?= yes

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# Disable NVIDIA graphics cards for now, write/erase don't work properly.
CONFIG_GFXNVIDIA ?= no
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# Always enable SiI SATA controllers for now.
CONFIG_SATASII ?= yes

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# Highpoint (HPT) ATA/RAID controller support.
# IMPORTANT: This code is not yet working!
CONFIG_ATAHPT ?= no

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# Always enable FT2232 SPI dongles for now.
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CONFIG_FT2232_SPI ?= yes
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# Always enable dummy tracing for now.
CONFIG_DUMMY ?= yes

# Always enable Dr. Kaiser for now.
CONFIG_DRKAISER ?= yes
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# Always enable Realtek NICs for now.
CONFIG_NICREALTEK ?= yes

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# Disable National Semiconductor NICs until support is complete and tested.
CONFIG_NICNATSEMI ?= no

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# Always enable Bus Pirate SPI for now.
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CONFIG_BUSPIRATE_SPI ?= yes
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# Disable Dediprog SF100 until support is complete and tested.
CONFIG_DEDIPROG ?= no

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# Disable wiki printing by default. It is only useful if you have wiki access.
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CONFIG_PRINT_WIKI ?= no
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ifeq ($(CONFIG_INTERNAL), yes)
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FEATURE_CFLAGS += -D'CONFIG_INTERNAL=1'
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PROGRAMMER_OBJS += processor_enable.o chipset_enable.o board_enable.o cbtable.o dmi.o internal.o
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# FIXME: The PROGRAMMER_OBJS below should only be included on x86.
PROGRAMMER_OBJS += it87spi.o ichspi.o sb600spi.o wbsio_spi.o
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NEED_PCI := yes
endif

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ifeq ($(CONFIG_SERPROG), yes)
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FEATURE_CFLAGS += -D'CONFIG_SERPROG=1'
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PROGRAMMER_OBJS += serprog.o
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NEED_SERIAL := yes
NEED_NET := yes
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endif
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ifeq ($(CONFIG_BITBANG_SPI), yes)
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FEATURE_CFLAGS += -D'CONFIG_BITBANG_SPI=1'
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PROGRAMMER_OBJS += bitbang_spi.o
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endif

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ifeq ($(CONFIG_NIC3COM), yes)
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FEATURE_CFLAGS += -D'CONFIG_NIC3COM=1'
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PROGRAMMER_OBJS += nic3com.o
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NEED_PCI := yes
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endif
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ifeq ($(CONFIG_GFXNVIDIA), yes)
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FEATURE_CFLAGS += -D'CONFIG_GFXNVIDIA=1'
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PROGRAMMER_OBJS += gfxnvidia.o
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NEED_PCI := yes
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endif

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ifeq ($(CONFIG_SATASII), yes)
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FEATURE_CFLAGS += -D'CONFIG_SATASII=1'
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PROGRAMMER_OBJS += satasii.o
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NEED_PCI := yes
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endif

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ifeq ($(CONFIG_ATAHPT), yes)
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FEATURE_CFLAGS += -D'CONFIG_ATAHPT=1'
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PROGRAMMER_OBJS += atahpt.o
NEED_PCI := yes
endif

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ifeq ($(CONFIG_FT2232_SPI), yes)
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FTDILIBS := $(shell pkg-config --libs libftdi 2>/dev/null || printf "%s" "-lftdi -lusb")
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# This is a totally ugly hack.
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FEATURE_CFLAGS += $(shell LC_ALL=C grep -q "FTDISUPPORT := yes" .features && printf "%s" "-D'CONFIG_FT2232_SPI=1'")
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FEATURE_LIBS += $(shell LC_ALL=C grep -q "FTDISUPPORT := yes" .features && printf "%s" "$(FTDILIBS)")
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PROGRAMMER_OBJS += ft2232_spi.o
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endif

ifeq ($(CONFIG_DUMMY), yes)
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FEATURE_CFLAGS += -D'CONFIG_DUMMY=1'
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PROGRAMMER_OBJS += dummyflasher.o
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endif

ifeq ($(CONFIG_DRKAISER), yes)
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FEATURE_CFLAGS += -D'CONFIG_DRKAISER=1'
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PROGRAMMER_OBJS += drkaiser.o
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NEED_PCI := yes
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endif
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ifeq ($(CONFIG_NICREALTEK), yes)
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FEATURE_CFLAGS += -D'CONFIG_NICREALTEK=1'
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PROGRAMMER_OBJS += nicrealtek.o
NEED_PCI := yes
endif

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ifeq ($(CONFIG_NICNATSEMI), yes)
FEATURE_CFLAGS += -D'CONFIG_NICNATSEMI=1'
PROGRAMMER_OBJS += nicnatsemi.o
NEED_PCI := yes
endif

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ifeq ($(CONFIG_BUSPIRATE_SPI), yes)
FEATURE_CFLAGS += -D'CONFIG_BUSPIRATE_SPI=1'
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PROGRAMMER_OBJS += buspirate_spi.o
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NEED_SERIAL := yes
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endif

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ifeq ($(CONFIG_DEDIPROG), yes)
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FEATURE_CFLAGS += -D'CONFIG_DEDIPROG=1'
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FEATURE_LIBS += -lusb
PROGRAMMER_OBJS += dediprog.o
endif

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ifeq ($(NEED_SERIAL), yes)
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LIB_OBJS += serial.o
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endif
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ifeq ($(NEED_NET), yes)
ifeq ($(OS_ARCH), SunOS)
LIBS += -lsocket
endif
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endif

ifeq ($(NEED_PCI), yes)
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CHECK_LIBPCI = yes
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FEATURE_CFLAGS += -D'NEED_PCI=1'
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PROGRAMMER_OBJS += pcidev.o physmap.o hwaccess.o
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ifeq ($(OS_ARCH), NetBSD)
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# The libpci we want is called libpciutils on NetBSD and needs NetBSD libpci.
LIBS += -lpciutils -lpci
# For (i386|x86_64)_iopl(2).
LIBS += -l$(shell uname -p)
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else
ifeq ($(OS_ARCH), DOS)
# FIXME There needs to be a better way to do this
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LIBS += ../libpci/lib/libpci.a
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else
LIBS += -lpci
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ifeq ($(OS_ARCH), OpenBSD)
# For (i386|amd64)_iopl(2).
LIBS += -l$(shell uname -m)
endif
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endif
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endif
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endif

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ifeq ($(CONFIG_PRINT_WIKI), yes)
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FEATURE_CFLAGS += -D'CONFIG_PRINT_WIKI=1'
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CLI_OBJS += print_wiki.o
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endif

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FEATURE_CFLAGS += $(shell LC_ALL=C grep -q "UTSNAME := yes" .features && printf "%s" "-D'HAVE_UTSNAME=1'")

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# We could use PULLED_IN_LIBS, but that would be ugly.
FEATURE_LIBS += $(shell LC_ALL=C grep -q "NEEDLIBZ := yes" .libdeps && printf "%s" "-lz")

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OBJS = $(CHIP_OBJS) $(CLI_OBJS) $(PROGRAMMER_OBJS) $(LIB_OBJS)

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$(PROGRAM)$(EXEC_SUFFIX): $(OBJS)
	$(CC) $(LDFLAGS) -o $(PROGRAM)$(EXEC_SUFFIX) $(OBJS) $(FEATURE_LIBS) $(LIBS)
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# TAROPTIONS reduces information leakage from the packager's system.
# If other tar programs support command line arguments for setting uid/gid of
# stored files, they can be handled here as well.
TAROPTIONS = $(shell LC_ALL=C tar --version|grep -q GNU && echo "--owner=root --group=root")
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%.o: %.c .features
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	$(CC) -MMD $(CFLAGS) $(CPPFLAGS) $(FEATURE_CFLAGS) $(SVNDEF) -o $@ -c $<
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# Make sure to add all names of generated binaries here.
# This includes all frontends and libflashrom.
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# We don't use EXEC_SUFFIX here because we want to clean everything.
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clean:
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	rm -f $(PROGRAM) $(PROGRAM).exe *.o *.d
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distclean: clean
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	rm -f .features .libdeps
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strip: $(PROGRAM)$(EXEC_SUFFIX)
	$(STRIP) $(STRIP_ARGS) $(PROGRAM)$(EXEC_SUFFIX)
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compiler: featuresavailable
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	@printf "Checking for a C compiler... "
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	@$(shell ( echo "int main(int argc, char **argv)"; \
		   echo "{ return 0; }"; ) > .test.c )
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	@$(CC) $(CPPFLAGS) $(CFLAGS) $(LDFLAGS) .test.c -o .test$(EXEC_SUFFIX) >/dev/null &&	\
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		echo "found." || ( echo "not found."; \
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		rm -f .test.c .test$(EXEC_SUFFIX); exit 1)
	@rm -f .test.c .test$(EXEC_SUFFIX)
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ifeq ($(CHECK_LIBPCI), yes)
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pciutils: compiler
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	@printf "Checking for libpci headers... "
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	@# Avoid a failing test due to libpci header symbol shadowing breakage
	@$(shell ( echo "#define index shadow_workaround_index"; \
		   echo "#include <pci/pci.h>";		   \
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		   echo "struct pci_access *pacc;";	   \
		   echo "int main(int argc, char **argv)"; \
		   echo "{ pacc = pci_alloc(); return 0; }"; ) > .test.c )
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	@$(CC) -c $(CPPFLAGS) $(CFLAGS) .test.c -o .test.o >/dev/null 2>&1 &&		\
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		echo "found." || ( echo "not found."; echo;			\
		echo "Please install libpci headers (package pciutils-devel).";	\
		echo "See README for more information."; echo;			\
		rm -f .test.c .test.o; exit 1)
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	@printf "Checking if libpci is present and sufficient... "
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	@printf "" > .libdeps
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	@$(CC) $(LDFLAGS) .test.o -o .test$(EXEC_SUFFIX) $(LIBS) >/dev/null 2>&1 &&				\
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		echo "yes." || ( echo "no.";							\
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		printf "Checking if libz+libpci are present and sufficient...";	\
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		$(CC) $(LDFLAGS) .test.o -o .test$(EXEC_SUFFIX) $(LIBS) -lz >/dev/null 2>&1 &&		\
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		( echo "yes."; echo "NEEDLIBZ := yes" > .libdeps ) || ( echo "no."; echo;	\
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		echo "Please install libpci (package pciutils) and/or libz.";			\
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		echo "See README for more information."; echo;				\
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		rm -f .test.c .test.o .test$(EXEC_SUFFIX); exit 1) )
	@rm -f .test.c .test.o .test$(EXEC_SUFFIX)
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else
pciutils: compiler
	@printf "" > .libdeps
endif
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.features: features

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# If a user does not explicitly request a non-working feature, we should
# silently disable it. However, if a non-working (does not compile) feature
# is explicitly requested, we should bail out with a descriptive error message.
ifeq ($(UNSUPPORTED_FEATURES), )
featuresavailable:
else
featuresavailable:
	@echo "The following features are unavailable on your machine: $(UNSUPPORTED_FEATURES)"
	@false
endif

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ifeq ($(CONFIG_FT2232_SPI), yes)
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features: compiler
	@echo "FEATURES := yes" > .features.tmp
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	@printf "Checking for FTDI support... "
	@$(shell ( echo "#include <ftdi.h>";		   \
		   echo "struct ftdi_context *ftdic = NULL;";	   \
		   echo "int main(int argc, char **argv)"; \
		   echo "{ return ftdi_init(ftdic); }"; ) > .featuretest.c )
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	@$(CC) $(CPPFLAGS) $(CFLAGS) $(LDFLAGS) .featuretest.c -o .featuretest$(EXEC_SUFFIX) $(FTDILIBS) $(LIBS) >/dev/null 2>&1 &&	\
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		( echo "found."; echo "FTDISUPPORT := yes" >> .features.tmp ) ||	\
		( echo "not found."; echo "FTDISUPPORT := no" >> .features.tmp )
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	@printf "Checking for utsname support... "
	@$(shell ( echo "#include <sys/utsname.h>";		   \
		   echo "struct utsname osinfo;";	   \
		   echo "int main(int argc, char **argv)"; \
		   echo "{ uname (&osinfo); return 0; }"; ) > .featuretest.c )
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	@$(CC) $(CPPFLAGS) $(CFLAGS) $(LDFLAGS) .featuretest.c -o .featuretest$(EXEC_SUFFIX) >/dev/null 2>&1 &&	\
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		( echo "found."; echo "UTSNAME := yes" >> .features.tmp ) ||	\
		( echo "not found."; echo "UTSNAME := no" >> .features.tmp )
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	@$(DIFF) -q .features.tmp .features >/dev/null 2>&1 && rm .features.tmp || mv .features.tmp .features
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	@rm -f .featuretest.c .featuretest$(EXEC_SUFFIX)
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else
features: compiler
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	@echo "FEATURES := yes" > .features.tmp
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	@printf "Checking for utsname support... "
	@$(shell ( echo "#include <sys/utsname.h>";		   \
		   echo "struct utsname osinfo;";	   \
		   echo "int main(int argc, char **argv)"; \
		   echo "{ uname (&osinfo); return 0; }"; ) > .featuretest.c )
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	@$(CC) $(CPPFLAGS) $(CFLAGS) $(LDFLAGS) .featuretest.c -o .featuretest$(EXEC_SUFFIX) >/dev/null 2>&1 &&	\
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		( echo "found."; echo "UTSNAME := yes" >> .features.tmp ) ||	\
		( echo "not found."; echo "UTSNAME := no" >> .features.tmp )
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	@$(DIFF) -q .features.tmp .features >/dev/null 2>&1 && rm .features.tmp || mv .features.tmp .features
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	@rm -f .featuretest.c .featuretest$(EXEC_SUFFIX)
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endif
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install: $(PROGRAM)$(EXEC_SUFFIX)
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	mkdir -p $(DESTDIR)$(PREFIX)/sbin
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	mkdir -p $(DESTDIR)$(MANDIR)/man8
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	$(INSTALL) -m 0755 $(PROGRAM)$(EXEC_SUFFIX) $(DESTDIR)$(PREFIX)/sbin
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	$(INSTALL) -m 0644 $(PROGRAM).8 $(DESTDIR)$(MANDIR)/man8
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export:
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	@rm -rf $(EXPORTDIR)/flashrom-$(RELEASENAME)
	@svn export -r BASE . $(EXPORTDIR)/flashrom-$(RELEASENAME)
	@sed "s/^SVNVERSION.*/SVNVERSION := $(SVNVERSION)/" Makefile >$(EXPORTDIR)/flashrom-$(RELEASENAME)/Makefile
	@LC_ALL=C svn log >$(EXPORTDIR)/flashrom-$(RELEASENAME)/ChangeLog
	@echo Exported $(EXPORTDIR)/flashrom-$(RELEASENAME)/
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tarball: export
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	@tar cjf $(EXPORTDIR)/flashrom-$(RELEASENAME).tar.bz2 -C $(EXPORTDIR)/ $(TAROPTIONS) flashrom-$(RELEASENAME)/
	@rm -rf $(EXPORTDIR)/flashrom-$(RELEASENAME)
	@echo Created $(EXPORTDIR)/flashrom-$(RELEASENAME).tar.bz2
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djgpp-dos: clean
	make CC=i586-pc-msdosdjgpp-gcc STRIP=i586-pc-msdosdjgpp-strip WARNERROR=no OS_ARCH=DOS

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.PHONY: all clean distclean compiler pciutils features export tarball dos featuresavailable
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-include $(OBJS:.o=.d)