restore compare_string_array new interface (make broken by landley)
[oweals/busybox.git] / Makefile
index 5e636362977b7bc7d0675ac4bffcd5e65f63f29a..6e0b7a322656b5e0e47755194ac079aa8c5335da 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -2,34 +2,22 @@
 #
 # Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
 #
-# 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; either version 2 of the License, or
-# (at your option) any later version.
-#
-# 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+# Licensed under GPLv2, see the file LICENSE in this tarball for details.
 #
 
 #--------------------------------------------------------------
 # You shouldn't need to mess with anything beyond this point...
 #--------------------------------------------------------------
 noconfig_targets := menuconfig config oldconfig randconfig \
-       defconfig allyesconfig allnoconfig clean distclean \
+       defconfig allyesconfig allnoconfig allbareconfig \
+       clean distclean \
        release tags
 
-ifndef TOPDIR
-TOPDIR=$(CURDIR)/
-endif
+# the toplevel sourcedir
 ifndef top_srcdir
 top_srcdir=$(CURDIR)
 endif
+# toplevel directory of the object-tree
 ifndef top_builddir
 top_builddir=$(CURDIR)
 endif
@@ -37,8 +25,6 @@ endif
 export srctree=$(top_srcdir)
 vpath %/Config.in $(srctree)
 
-include $(top_builddir)/Rules.mak
-
 DIRS:=applets archival archival/libunarchive coreutils console-tools \
        debianutils editors findutils init miscutils modutils networking \
        networking/libiproute networking/udhcp procps loginutils shell \
@@ -46,31 +32,42 @@ DIRS:=applets archival archival/libunarchive coreutils console-tools \
 
 SRC_DIRS:=$(patsubst %,$(top_srcdir)/%,$(DIRS))
 
-ifeq ($(strip $(CONFIG_SELINUX)),y)
-LIBRARIES += -lselinux
-endif
+# That's our default target when none is given on the command line
+.PHONY: _all
+_all:
 
 CONFIG_CONFIG_IN = $(top_srcdir)/sysdeps/$(TARGET_OS)/Config.in
 CONFIG_DEFCONFIG = $(top_srcdir)/sysdeps/$(TARGET_OS)/defconfig
 
-ALL_DIRS:= $(DIRS) scripts/config
-ALL_MAKEFILES:=$(patsubst %,%/Makefile,$(ALL_DIRS))
-
 ifeq ($(KBUILD_SRC),)
 
 ifdef O
   ifeq ("$(origin O)", "command line")
     KBUILD_OUTPUT := $(O)
+    top_builddir := $(O)
   endif
+else
+# If no alternate output-dir was specified, we build in cwd
+# We are using KBUILD_OUTPUT nevertheless to make sure that we create
+# Rules.mak and the toplevel Makefile, in case they don't exist.
+  KBUILD_OUTPUT := $(top_builddir)
 endif
 
-# That's our default target when none is given on the command line
-.PHONY: _all
-_all:
+ifneq ($(strip $(HAVE_DOT_CONFIG)),y)
+# pull in OS specific commands like cp, mkdir, etc. early
+-include $(top_srcdir)/Rules.mak
+endif
+
+# All object directories.
+OBJ_DIRS := $(DIRS)
+all_tree := $(patsubst %,$(top_builddir)/%,$(OBJ_DIRS) scripts scripts/config include)
+all_tree: $(all_tree)
+$(all_tree):
+       @mkdir -p "$@"
 
 ifneq ($(KBUILD_OUTPUT),)
 # Invoke a second make in the output directory, passing relevant variables
-# check that the output directory actually exists
+# Check that the output directory actually exists
 saved-output := $(KBUILD_OUTPUT)
 KBUILD_OUTPUT := $(shell cd $(KBUILD_OUTPUT) && /bin/pwd)
 $(if $(wildcard $(KBUILD_OUTPUT)),, \
@@ -78,23 +75,22 @@ $(if $(wildcard $(KBUILD_OUTPUT)),, \
 
 .PHONY: $(MAKECMDGOALS)
 
-$(filter-out _all,$(MAKECMDGOALS)) _all: $(KBUILD_OUTPUT)/Rules.mak $(KBUILD_OUTPUT)/Makefile
+$(filter-out _all,$(MAKECMDGOALS)) _all: $(KBUILD_OUTPUT)/Rules.mak $(KBUILD_OUTPUT)/Makefile all_tree
        $(MAKE) -C $(KBUILD_OUTPUT) \
-       top_srcdir=$(CURDIR) \
-       top_builddir=$(KBUILD_OUTPUT) \
-       TOPDIR=$(KBUILD_OUTPUT) \
-       KBUILD_SRC=$(CURDIR) \
+       top_srcdir=$(top_srcdir) \
+       top_builddir=$(top_builddir) \
+       KBUILD_SRC=$(top_srcdir) \
        -f $(CURDIR)/Makefile $@
 
 $(KBUILD_OUTPUT)/Rules.mak:
        @echo > $@
-       @echo top_srcdir=$(CURDIR) >> $@
+       @echo top_srcdir=$(top_srcdir) >> $@
        @echo top_builddir=$(KBUILD_OUTPUT) >> $@
        @echo include $(top_srcdir)/Rules.mak >> $@
 
 $(KBUILD_OUTPUT)/Makefile:
        @echo > $@
-       @echo top_srcdir=$(CURDIR) >> $@
+       @echo top_srcdir=$(top_srcdir) >> $@
        @echo top_builddir=$(KBUILD_OUTPUT) >> $@
        @echo KBUILD_SRC='$$(top_srcdir)' >> $@
        @echo include '$$(KBUILD_SRC)'/Makefile >> $@
@@ -106,31 +102,124 @@ endif # ifeq ($(KBUILD_SRC),)
 
 ifeq ($(skip-makefile),)
 
+# We only need a copy of the Makefile for the config targets and reuse
+# the rest from the source directory, i.e. we do not cp ALL_MAKEFILES.
+scripts/config/Makefile: $(top_srcdir)/scripts/config/Makefile
+       cp $< $@
+
 _all: all
 
-ifeq ($(strip $(HAVE_DOT_CONFIG)),y)
+help:
+       @echo 'Cleaning:'
+       @echo '  clean                  - delete temporary files created by build'
+       @echo '  distclean              - delete all non-source files (including .config)'
+       @echo
+       @echo 'Build:'
+       @echo '  all                    - Executable and documentation'
+       @echo '  busybox                - the swiss-army executable'
+       @echo '  doc                    - docs/BusyBox.{txt,html,1}'
+       @echo
+       @echo 'Configuration:'
+       @echo '  allnoconfig            - disable all symbols in .config'
+       @echo '  allyesconfig           - enable (almost) all symbols in .config'
+       @echo '  allbareconfig          - enable all basics without any features'
+       @echo '  config         - text based configurator (of last resort)'
+       @echo '  defconfig              - set .config to defaults'
+       @echo '  menuconfig             - interactive curses-based configurator'
+       @echo '  oldconfig              - resolve any unresolved symbols in .config'
+       @echo
+       @echo 'Installation:'
+       @echo '  install                - install busybox into $prefix'
+       @echo '  uninstall'
+       @echo
+       @echo 'Development:'
+       @echo '  check                  - run the test suite for all applets'
+       @echo '  randconfig             - generate a random configuration'
+       @echo '  release                - create a distribution tarball'
+       @echo '  sizes                  - show size of all enabled busybox symbols'
+       @echo
 
-all: busybox busybox.links doc
 
-all_tree:      $(ALL_MAKEFILES)
+include $(top_srcdir)/Rules.mak
+
+ifneq ($(strip $(HAVE_DOT_CONFIG)),y)
+
+# Default target if none was requested explicitly
+all: menuconfig
 
-$(ALL_MAKEFILES): %/Makefile: $(top_srcdir)/%/Makefile
-       d=`dirname $@`; [ -d "$$d" ] || mkdir -p "$$d"; cp $< $@
+# warn if no configuration exists and we are asked to build a non-config target
+.config:
+       @echo ""
+       @echo "No $(top_builddir)/$@ found!"
+       @echo "Please refer to 'make  help', section Configuration."
+       @echo ""
+       @exit 1
+
+# configuration
+# ---------------------------------------------------------------------------
+
+scripts/config/conf: scripts/config/Makefile
+       $(MAKE) -C scripts/config conf
+       -@if [ ! -f .config ] ; then \
+               cp $(CONFIG_DEFCONFIG) .config; \
+       fi
+
+scripts/config/mconf: scripts/config/Makefile
+       $(MAKE) -C scripts/config ncurses conf mconf
+       -@if [ ! -f .config ] ; then \
+               cp $(CONFIG_DEFCONFIG) .config; \
+       fi
+
+menuconfig: scripts/config/mconf
+       @./scripts/config/mconf $(CONFIG_CONFIG_IN)
+
+config: scripts/config/conf
+       @./scripts/config/conf $(CONFIG_CONFIG_IN)
+
+oldconfig: scripts/config/conf
+       @./scripts/config/conf -o $(CONFIG_CONFIG_IN)
+
+randconfig: scripts/config/conf
+       @./scripts/config/conf -r $(CONFIG_CONFIG_IN)
+
+allyesconfig: scripts/config/conf
+       @./scripts/config/conf -y $(CONFIG_CONFIG_IN)
+       sed -i -r -e "s/^(CONFIG_DEBUG|USING_CROSS_COMPILER|CONFIG_STATIC|CONFIG_SELINUX|CONFIG_FEATURE_DEVFS).*/# \1 is not set/" .config
+       @./scripts/config/conf -o $(CONFIG_CONFIG_IN)
+
+allnoconfig: scripts/config/conf
+       @./scripts/config/conf -n $(CONFIG_CONFIG_IN)
+
+defconfig: scripts/config/conf
+       @./scripts/config/conf -d $(CONFIG_CONFIG_IN)
+
+allbareconfig: scripts/config/conf
+       @./scripts/config/conf -y $(CONFIG_CONFIG_IN)
+       @sed -i -r -e "s/^(CONFIG_DEBUG|USING_CROSS_COMPILER|CONFIG_STATIC|CONFIG_SELINUX).*/# \1 is not set/" .config
+       @sed -i -e "/FEATURE/s/=.*//;/^[^#]/s/.*FEATURE.*/# \0 is not set/;" .config
+       @echo "CONFIG_FEATURE_BUFFERS_GO_ON_STACK=y" >> .config
+       @./scripts/config/conf -o $(CONFIG_CONFIG_IN)
+
+else # ifneq ($(strip $(HAVE_DOT_CONFIG)),y)
+
+all: busybox busybox.links doc
 
 # In this section, we need .config
 -include $(top_builddir)/.config.cmd
 include $(patsubst %,%/Makefile.in, $(SRC_DIRS))
 -include $(top_builddir)/.depend
 
-busybox: $(ALL_MAKEFILES) .depend include/bb_config.h $(libraries-y)
-       $(CC) $(LDFLAGS) -o $@ -Wl,--start-group $(libraries-y) $(LIBRARIES) -Wl,--end-group
+endif # ifneq ($(strip $(HAVE_DOT_CONFIG)),y)
+
+busybox: .depend $(libraries-y)
+       $(CC) $(EXTRA_CFLAGS) $(LDFLAGS) -o $@ -Wl,--start-group $(libraries-y) $(LIBRARIES) -Wl,--end-group
        $(STRIPCMD) $@
 
 busybox.links: $(top_srcdir)/applets/busybox.mkll include/config.h $(top_srcdir)/include/applets.h
        - $(SHELL) $^ >$@
 
 install: $(top_srcdir)/applets/install.sh busybox busybox.links
-       $(SHELL) $< $(PREFIX)
+       $(SHELL) $< $(PREFIX) $(INSTALL_OPTS)
 ifeq ($(strip $(CONFIG_FEATURE_SUID)),y)
        @echo
        @echo
@@ -146,12 +235,25 @@ uninstall: busybox.links
        rm -f $(PREFIX)/bin/busybox
        for i in `cat busybox.links` ; do rm -f $(PREFIX)$$i; done
 
-install-hardlinks: $(top_srcdir)/applets/install.sh busybox busybox.links
-       $(SHELL) $< $(PREFIX) --hardlinks
-
-check: busybox
+# see if we are in verbose mode
+KBUILD_VERBOSE :=
+ifdef V
+  ifeq ("$(origin V)", "command line")
+    KBUILD_VERBOSE := $(V)
+  endif
+endif
+ifneq ($(strip $(KBUILD_VERBOSE)),)
+  CHECK_VERBOSE := -v
+endif
+check test: busybox
        bindir=$(top_builddir) srcdir=$(top_srcdir)/testsuite \
-       $(top_srcdir)/testsuite/runtest
+       $(top_srcdir)/testsuite/runtest $(CHECK_VERBOSE)
+
+sizes:
+       -rm -f busybox
+       $(MAKE) top_srcdir=$(top_srcdir) top_builddir=$(top_builddir) \
+               -f $(top_srcdir)/Makefile STRIPCMD=/bin/true
+       $(NM) --size-sort busybox
 
 # Documentation Targets
 doc: docs/busybox.pod docs/BusyBox.txt docs/BusyBox.1 docs/BusyBox.html
@@ -186,24 +288,25 @@ docs/busybox.net/BusyBox.html: docs/busybox.pod
        -@ rm -f pod2htm*
 
 # The nifty new buildsystem stuff
-scripts/mkdep: $(top_srcdir)/scripts/mkdep.c
+scripts/bb_mkdep: $(top_srcdir)/scripts/bb_mkdep.c
        $(HOSTCC) $(HOSTCFLAGS) -o $@ $<
 
-scripts/split-include: $(top_srcdir)/scripts/split-include.c
-       $(HOSTCC) $(HOSTCFLAGS) -o $@ $<
+DEP_INCLUDES := include/config.h include/bb_config.h
+
+ifeq ($(strip $(CONFIG_BBCONFIG)),y)
+DEP_INCLUDES += include/bbconfigopts.h
+
+include/bbconfigopts.h: .config
+       $(top_srcdir)/scripts/config/mkconfigs > $@
+endif
 
 depend dep: .depend
-.depend: scripts/mkdep include/config.h include/bbconfigopts.h
-       rm -f .depend .hdepend;
-       mkdir -p include/config;
-       scripts/mkdep -I include -- \
-         `find $(top_srcdir) -name \*.c -print | sed -e "s,^./,,"` >> .depend;
-       scripts/mkdep -I include -- \
-         `find $(top_srcdir) -name \*.h -print | sed -e "s,^./,,"` >> .hdepend;
-
-include/config/MARKER: depend scripts/split-include
-       scripts/split-include include/config.h include/config
-       @ touch include/config/MARKER
+.depend: scripts/bb_mkdep $(DEP_INCLUDES)
+       @rm -f .depend
+       @mkdir -p include/config
+       scripts/bb_mkdep -c include/config.h -c include/bb_config.h \
+                       -I $(top_srcdir)/include $(top_srcdir) > $@.tmp
+       mv $@.tmp $@
 
 include/config.h: .config
        @if [ ! -x $(top_builddir)/scripts/config/conf ] ; then \
@@ -212,86 +315,30 @@ include/config.h: .config
        @$(top_builddir)/scripts/config/conf -o $(CONFIG_CONFIG_IN)
 
 include/bb_config.h: include/config.h
-       echo "#ifndef AUTOCONF_INCLUDED" > $@
-       sed -e 's/#undef CONFIG_\(.*\)/#define ENABLE_\1 0/' \
+       @echo -e "#ifndef BB_CONFIG_H\n#define BB_CONFIG_H" > $@
+       @sed -e 's/#undef CONFIG_\(.*\)/#define ENABLE_\1 0/' \
            -e 's/#define CONFIG_\(.*\)/#define CONFIG_\1\n#define ENABLE_\1/' \
                < $< >> $@
-       echo "#endif" >> $@
-
-include/bbconfigopts.h: .config
-       scripts/config/mkconfigs >include/bbconfigopts.h
-
-finished2:
-       $(SECHO)
-       $(SECHO) Finished installing...
-       $(SECHO)
-
-else # ifeq ($(strip $(HAVE_DOT_CONFIG)),y)
-
-all: menuconfig
-
-# configuration
-# ---------------------------------------------------------------------------
-
-$(ALL_MAKEFILES): %/Makefile: $(top_srcdir)/%/Makefile
-       d=`dirname $@`; [ -d "$$d" ] || mkdir -p "$$d"; cp $< $@
-
-scripts/config/conf: scripts/config/Makefile Rules.mak
-       $(MAKE) -C scripts/config conf
-       -@if [ ! -f .config ] ; then \
-               cp $(CONFIG_DEFCONFIG) .config; \
-       fi
-
-scripts/config/mconf: scripts/config/Makefile Rules.mak
-       $(MAKE) -C scripts/config ncurses conf mconf
-       -@if [ ! -f .config ] ; then \
-               cp $(CONFIG_DEFCONFIG) .config; \
-       fi
-
-menuconfig: scripts/config/mconf
-       @./scripts/config/mconf $(CONFIG_CONFIG_IN)
-
-config: scripts/config/conf
-       @./scripts/config/conf $(CONFIG_CONFIG_IN)
-
-oldconfig: scripts/config/conf
-       @./scripts/config/conf -o $(CONFIG_CONFIG_IN)
-
-randconfig: scripts/config/conf
-       @./scripts/config/conf -r $(CONFIG_CONFIG_IN)
-
-allyesconfig: scripts/config/conf
-       @./scripts/config/conf -y $(CONFIG_CONFIG_IN)
-       sed -i -e "s/^CONFIG_DEBUG.*/# CONFIG_DEBUG is not set/" .config
-       sed -i -e "s/^USING_CROSS_COMPILER.*/# USING_CROSS_COMPILER is not set/" .config
-       sed -i -e "s/^CONFIG_STATIC.*/# CONFIG_STATIC is not set/" .config
-       sed -i -e "s/^CONFIG_SELINUX.*/# CONFIG_SELINUX is not set/" .config
-       @./scripts/config/conf -o $(CONFIG_CONFIG_IN)
-
-allnoconfig: scripts/config/conf
-       @./scripts/config/conf -n $(CONFIG_CONFIG_IN)
-
-defconfig: scripts/config/conf
-       @./scripts/config/conf -d $(CONFIG_CONFIG_IN)
+       @echo "#endif" >> $@
 
 clean:
+       - $(MAKE) -C scripts/config $@
        - rm -f docs/busybox.dvi docs/busybox.ps \
            docs/busybox.pod docs/busybox.net/busybox.html \
            docs/busybox pod2htm* *.gdb *.elf *~ core .*config.log \
            docs/BusyBox.txt docs/BusyBox.1 docs/BusyBox.html \
            docs/busybox.net/BusyBox.html busybox.links libbb/loop.h \
-           .config.old .hdepend busybox
-       - rm -rf _install
+           .config.old busybox
+       - rm -rf _install testsuite/links
        - find . -name .\*.flags -exec rm -f {} \;
        - find . -name \*.o -exec rm -f {} \;
        - find . -name \*.a -exec rm -f {} \;
 
 distclean: clean
-       - rm -f scripts/split-include scripts/mkdep
-       - rm -rf include/config include/config.h include/bb_config.h
+       - rm -f scripts/bb_mkdep
+       - rm -rf include/config include/config.h include/bb_config.h include/bbconfigopts.h
        - find . -name .depend -exec rm -f {} \;
        rm -f .config .config.old .config.cmd
-       - $(MAKE) -C scripts/config clean
 
 release: distclean #doc
        cd ..; \
@@ -299,7 +346,7 @@ release: distclean #doc
        cp -a busybox $(PROG)-$(VERSION); \
        \
        find $(PROG)-$(VERSION)/ -type d \
-               -name CVS \
+               -name .svn \
                -print \
                -exec rm -rf {} \; ; \
        \
@@ -314,9 +361,7 @@ tags:
        ctags -R .
 
 
-endif # ifeq ($(strip $(HAVE_DOT_CONFIG)),y)
-
 endif # ifeq ($(skip-makefile),)
 
 .PHONY: dummy subdirs release distclean clean config oldconfig \
-       menuconfig tags check test depend buildtree
+       menuconfig tags check test depend dep buildtree