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363 lines
12 KiB
Makefile
363 lines
12 KiB
Makefile
# Makefile for busybox
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#
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# Copyright (C) 1999,2000,2001 Erik Andersen <andersee@debian.org>
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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#
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PROG := busybox
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VERSION := 0.50pre
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BUILDTIME := $(shell TZ=UTC date --utc "+%Y.%m.%d-%H:%M%z")
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export VERSION
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# With a modern GNU make(1) (highly recommended, that's what all the
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# developers use), all of the following configuration values can be
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# overridden at the command line. For example:
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# make CROSS=powerpc-linux- BB_SRC_DIR=$HOME/busybox PREFIX=/mnt/app
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# If you want to add some simple compiler switches (like -march=i686),
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# especially from the command line, use this instead of CFLAGS directly.
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# For optimization overrides, it's better still to set OPTIMIZATION.
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CFLAGS_EXTRA =
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# If you want a static binary, turn this on.
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DOSTATIC = false
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# Set the following to `true' to make a debuggable build.
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# Leave this set to `false' for production use.
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# eg: `make DODEBUG=true tests'
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# Do not enable this for production builds...
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DODEBUG = false
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# Setting this to `true' will cause busybox to directly use the system's
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# password and group functions. Assuming you use GNU libc, when this is
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# `true', you will need to install the /etc/nsswitch.conf configuration file
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# and the required libnss_* libraries. This generally makes your embedded
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# system quite a bit larger... If you leave this off, busybox will directly
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# use the /etc/password, /etc/group files (and your system will be smaller, and
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# I will get fewer emails asking about how glibc NSS works). Enabling this adds
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# just 1.4k to the binary size (which is a _lot_ less then glibc NSS costs),
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# Most people will want to leave this set to false.
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USE_SYSTEM_PWD_GRP = false
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# This enables compiling with dmalloc ( http://dmalloc.com/ )
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# which is an excellent public domain mem leak and malloc problem
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# detector. To enable dmalloc, before running busybox you will
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# want to first set up your environment.
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# eg: `export DMALLOC_OPTIONS=debug=0x14f47d83,inter=100,log=logfile`
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# Do not enable this for production builds...
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DODMALLOC = false
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# If you want large file summit support, turn this on.
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# This has no effect if you don't have a kernel with lfs
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# support, and a system with libc-2.1.3 or later.
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# Some of the programs that can benefit from lfs support
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# are dd, gzip, mount, tar, and mkfs_minix.
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# LFS allows you to use the above programs for files
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# larger than 2GB!
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DOLFS = false
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# If you have a "pristine" source directory, point BB_SRC_DIR to it.
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# Experimental and incomplete; tell the mailing list
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# <busybox@opensource.lineo.com> if you do or don't like it so far.
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BB_SRC_DIR =
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# If you are running a cross compiler, you may want to set this
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# to something more interesting, like "powerpc-linux-".
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CROSS =
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CC = $(CROSS)gcc
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AR = $(CROSS)ar
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STRIPTOOL = $(CROSS)strip
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# To compile vs uClibc, just use the compiler wrapper built by uClibc...
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# Isn't that easy? Right now, uClibc needs BB_FEATURE_NFSMOUNT disabled
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# since uClibc's nfs support isn't ready yet.
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#CC = ../uClibc/extra/gcc-uClibc/gcc-uClibc-i386
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# To compile vs some other alternative libc, you may need to use/adjust
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# the following lines to meet your needs...
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#LIBCDIR=/usr/i486-linuxlibc1/
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#LDFLAGS+=-nostdlib
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#LIBRARIES = $(LIBCDIR)/libc.a -lgcc
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#CROSS_CFLAGS+=-nostdinc -I$(LIBCDIR)/include -I$(GCCINCDIR)
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#GCCINCDIR = $(shell gcc -print-search-dirs | sed -ne "s/install: \(.*\)/\1include/gp")
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# use '-Os' optimization if available, else use -O2
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OPTIMIZATION := $(shell if $(CC) -Os -S -o /dev/null -xc /dev/null >/dev/null 2>&1; \
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then echo "-Os"; else echo "-O2" ; fi)
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WARNINGS = -Wall
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#
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#--------------------------------------------------------
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# If you're going to do a lot of builds with a non-vanilla configuration,
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# it makes sense to adjust parameters above, so you can type "make"
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# by itself, instead of following it by the same half-dozen overrides
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# every time. The stuff below, on the other hand, is probably less
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# prone to casual user adjustment.
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#
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ifeq ($(strip $(DOLFS)),true)
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# For large file summit support
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CFLAGS+=-D_FILE_OFFSET_BITS=64
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endif
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ifeq ($(strip $(DODMALLOC)),true)
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# For testing mem leaks with dmalloc
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CFLAGS+=-DDMALLOC
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LIBRARIES = -ldmalloc
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# Force debug=true, since this is useless when not debugging...
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DODEBUG = true
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endif
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ifeq ($(strip $(DODEBUG)),true)
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CFLAGS += $(WARNINGS) -g -D_GNU_SOURCE
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LDFLAGS += -Wl,-warn-common
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STRIP =
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else
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CFLAGS += $(WARNINGS) $(OPTIMIZATION) -fomit-frame-pointer -D_GNU_SOURCE
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LDFLAGS += -s -Wl,-warn-common
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STRIP = $(STRIPTOOL) --remove-section=.note --remove-section=.comment $(PROG)
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endif
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ifeq ($(strip $(DOSTATIC)),true)
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LDFLAGS += --static
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#
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#use '-ffunction-sections -fdata-sections' and '--gc-sections' (if they
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# work) to try and strip out any unused junk. Doesn't do much for me,
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# but you may want to give it a shot...
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#
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#ifeq ($(shell $(CC) -ffunction-sections -fdata-sections -S \
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# -o /dev/null -xc /dev/null 2>/dev/null && $(LD) \
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# --gc-sections -v >/dev/null && echo 1),1)
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# CFLAGS += -ffunction-sections -fdata-sections
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# LDFLAGS += --gc-sections
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#endif
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endif
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ifndef $(PREFIX)
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PREFIX = `pwd`/_install
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endif
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# Additional complications due to support for pristine source dir.
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# Include files in the build directory should take precedence over
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# the copy in BB_SRC_DIR, both during the compilation phase and the
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# shell script that finds the list of object files.
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# Work in progress by <ldoolitt@recycle.lbl.gov>.
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#
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ifneq ($(strip $(BB_SRC_DIR)),)
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VPATH = $(BB_SRC_DIR)
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endif
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#ifneq ($(strip $(VPATH)),)
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# CFLAGS += -I- -I. $(patsubst %,-I%,$(subst :, ,$(VPATH)))
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#endif
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# We need to set APPLET_SOURCES to something like
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# $(shell busybox.sh Config.h)
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# but in a manner that works with VPATH and BB_SRC_DIR.
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# Possible ways to approach this:
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#
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# 1. Explicitly search through .:$(VPATH) for busybox.sh and config.h,
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# then $(shell $(BUSYBOX_SH) $(CONFIG_H) $(BB_SRC_DIR))
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#
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# 2. Explicity search through .:$(VPATH) for slist.mk,
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# then $(shell $(MAKE) -f $(SLIST_MK) VPATH=$(VPATH) BB_SRC_DIR=$(BB_SRC_DIR))
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#
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# 3. Create slist.mk in this directory, with commands embedded in
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# a $(shell ...) command, and $(MAKE) it immediately.
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#
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# 4. Use a real rule within this makefile to create a file that sets
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# APPLET_SOURCE_LIST, then include that file. Has complications
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# with the first trip through the makefile (before processing the
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# include) trying to do too much, and a spurious warning the first
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# time make is run.
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#
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# This is option 3:
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#
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#APPLET_SOURCES = $(shell \
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# echo -e 'all: busybox.sh Config.h\n\t@ $$(SHELL) $$^ $$(BB_SRC_DIR)' >slist.mk; \
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# make -f slist.mk VPATH=$(VPATH) BB_SRC_DIR=$(BB_SRC_DIR) \
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#)
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# And option 4:
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-include applet_source_list
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OBJECTS = $(APPLET_SOURCES:.c=.o) busybox.o messages.o usage.o utility.o
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CFLAGS += $(CROSS_CFLAGS)
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CFLAGS += -DBB_VER='"$(VERSION)"'
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CFLAGS += -DBB_BT='"$(BUILDTIME)"'
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ifdef BB_INIT_SCRIPT
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CFLAGS += -DINIT_SCRIPT='"$(BB_INIT_SCRIPT)"'
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endif
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ifneq ($(strip $(USE_SYSTEM_PWD_GRP)),true)
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PWD_GRP = pwd_grp
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PWD_GRP_DIR = $(BB_SRC_DIR)$(PWD_GRP)
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PWD_LIB = libpwd.a
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LIBRARIES += $(PWD_LIB)
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PWD_CSRC=__getpwent.c pwent.c getpwnam.c getpwuid.c putpwent.c getpw.c \
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fgetpwent.c __getgrent.c grent.c getgrnam.c getgrgid.c fgetgrent.c \
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initgroups.c setgroups.c
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PWD_OBJS=$(patsubst %.c,$(PWD_GRP)/%.o, $(PWD_CSRC))
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PWD_CFLAGS = -I$(PWD_GRP_DIR)
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else
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CFLAGS += -DUSE_SYSTEM_PWD_GRP
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endif
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# Put user-supplied flags at the end, where they
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# have a chance of winning.
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CFLAGS += $(CFLAGS_EXTRA)
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.EXPORT_ALL_VARIABLES:
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all: applet_source_list busybox busybox.links doc
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applet_source_list: busybox.sh Config.h
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(echo -n "APPLET_SOURCES := "; $(SHELL) $^ $(BB_SRC_DIR)) > $@
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doc: olddoc
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# Old Docs...
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olddoc: docs/BusyBox.txt docs/BusyBox.1 docs/BusyBox.html
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docs/BusyBox.txt: docs/busybox.pod
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@echo
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@echo BusyBox Documentation
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@echo
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-mkdir -p docs
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-pod2text $< > $@
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docs/BusyBox.1: docs/busybox.pod
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- mkdir -p docs
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- pod2man --center=BusyBox --release="version $(VERSION)" \
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$< > $@
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docs/BusyBox.html: docs/busybox.lineo.com/BusyBox.html
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- mkdir -p docs
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-@ rm -f docs/BusyBox.html
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-@ ln -s busybox.lineo.com/BusyBox.html docs/BusyBox.html
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docs/busybox.lineo.com/BusyBox.html: docs/busybox.pod
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-@ mkdir -p docs/busybox.lineo.com
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- pod2html --noindex $< > \
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docs/busybox.lineo.com/BusyBox.html
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-@ rm -f pod2html*
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# New docs based on DOCBOOK SGML
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newdoc: docs/busybox.txt docs/busybox.pdf docs/busybox/busyboxdocumentation.html
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docs/busybox.txt: docs/busybox.sgml
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@echo
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@echo BusyBox Documentation
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@echo
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- mkdir -p docs
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(cd docs; sgmltools -b txt busybox.sgml)
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docs/busybox.dvi: docs/busybox.sgml
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- mkdir -p docs
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(cd docs; sgmltools -b dvi busybox.sgml)
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docs/busybox.ps: docs/busybox.sgml
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- mkdir -p docs
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(cd docs; sgmltools -b ps busybox.sgml)
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docs/busybox.pdf: docs/busybox.ps
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- mkdir -p docs
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(cd docs; ps2pdf busybox.ps)
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docs/busybox/busyboxdocumentation.html: docs/busybox.sgml
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- mkdir -p docs
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(cd docs/busybox.lineo.com; sgmltools -b html ../busybox.sgml)
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busybox: $(PWD_LIB) $(OBJECTS)
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$(CC) $(LDFLAGS) -o $@ $^ $(LIBRARIES)
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$(STRIP)
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# Without VPATH, rule expands to "/bin/sh busybox.mkll Config.h applets.h"
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# but with VPATH, some or all of those file names are resolved to the
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# directories in which they live.
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busybox.links: busybox.mkll Config.h applets.h
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- $(SHELL) $^ >$@
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nfsmount.o cmdedit.o: %.o: %.h
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$(OBJECTS): %.o: %.c Config.h busybox.h applets.h Makefile
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$(CC) $(CFLAGS) -I- -I. $(patsubst %,-I%,$(subst :, ,$(BB_SRC_DIR))) -c $< -o $*.o
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$(PWD_OBJS): %.o: %.c Config.h busybox.h applets.h Makefile
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- mkdir -p $(PWD_GRP)
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$(CC) $(CFLAGS) $(PWD_CFLAGS) -c $< -o $*.o
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$(PWD_LIB): $(PWD_OBJS)
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$(AR) $(ARFLAGS) $(PWD_LIB) $^
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usage.o: usage.h
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utility.o: loop.h
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loop.h: mk_loop_h.sh
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@ $(SHELL) $< > $@
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test tests:
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cd tests && $(MAKE) all
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clean:
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- cd tests && $(MAKE) clean
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- rm -f docs/BusyBox.txt docs/BusyBox.1 docs/BusyBox.html \
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docs/busybox.lineo.com/BusyBox.html
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- rm -f docs/busybox.txt docs/busybox.dvi docs/busybox.ps \
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docs/busybox.pdf docs/busybox.lineo.com/busybox.html
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- rm -f multibuild.log Config.h.orig
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- rm -rf docs/busybox _install $(PWD_LIB)
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- rm -f busybox.links loop.h *~ slist.mk core applet_source_list
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- find -name *.o | xargs rm -f;
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distclean: clean
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- rm -f busybox
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- cd tests && $(MAKE) distclean
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install: install.sh busybox busybox.links
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$(SHELL) $< $(PREFIX)
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install-hardlinks: install.sh busybox busybox.links
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$(SHELL) $< $(PREFIX) --hardlinks
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debug_pristine:
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@ echo VPATH=\"$(VPATH)\"
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@ echo OBJECTS=\"$(OBJECTS)\"
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dist release: distclean doc
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cd ..; \
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rm -rf busybox-$(VERSION); \
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cp -a busybox busybox-$(VERSION); \
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\
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find busybox-$(VERSION)/ -type d \
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-name CVS \
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-print \
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| xargs rm -rf; \
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\
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find busybox-$(VERSION)/ -type f \
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-name .cvsignore \
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-print \
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| xargs rm -f; \
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\
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find busybox-$(VERSION)/ -type f \
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-name .\#* \
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-print \
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| xargs rm -f; \
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\
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tar -cvzf busybox-$(VERSION).tar.gz busybox-$(VERSION)/;
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.PHONY: tags
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tags:
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ctags -R .
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