aboutsummaryrefslogtreecommitdiff
path: root/Makefile
blob: 83da80c478d5843fa97263368bd91d8aa40eacf4 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
# Makefile for busybox
#
# Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
#
# Licensed under GPLv2, see the file LICENSE in this tarball for details.
#

# You shouldn't have to edit anything in this file for configuration
# purposes, try "make help" or read http://busybox.net/FAQ.html.

.PHONY: dummy subdirs release distclean clean config oldconfig menuconfig \
        tags check test depend dep buildtree hosttools _all checkhelp \
        sizes bloatcheck baseline objsizes

noconfig_targets := menuconfig config oldconfig randconfig hosttools \
	defconfig allyesconfig allnoconfig allbareconfig \
	clean distclean help \
	release tags

nocheck_targets := clean distclean help release tags

# the toplevel sourcedir
ifndef top_srcdir
top_srcdir=$(CURDIR)
endif
# toplevel directory of the object-tree
ifndef top_builddir
top_builddir=$(CURDIR)
endif

export srctree=$(top_srcdir)
vpath %/Config.in $(srctree)

DIRS:=applets archival archival/libunarchive coreutils console-tools \
	debianutils editors findutils init miscutils modutils networking \
	networking/libiproute networking/udhcp procps loginutils shell \
	sysklogd util-linux e2fsprogs libpwdgrp coreutils/libcoreutils \
	runit libbb

SRC_DIRS:=$(patsubst %,$(top_srcdir)/%,$(DIRS))

# That's our default target when none is given on the command line
_all:

CONFIG_CONFIG_IN = $(top_srcdir)/Config.in

ifeq ($(BUILD_SRC),)
ifdef O
  ifeq ("$(origin O)", "command line")
    BUILD_OUTPUT := $(O)
    top_builddir := $(O)
  endif
else
# If no alternate output-dir was specified, we build in cwd
# We are using BUILD_OUTPUT nevertheless to make sure that we create
# Rules.mak and the toplevel Makefile, in case they don't exist.
  BUILD_OUTPUT := $(top_builddir)
endif

# see if we are in verbose mode
BUILD_VERBOSE :=
ifdef V
  ifeq ("$(origin V)", "command line")
    BUILD_VERBOSE := $(V)
  endif
endif
ifdef VERBOSE
  ifeq ("$(origin VERBOSE)", "command line")
    BUILD_VERBOSE := $(VERBOSE)
  endif
endif

ifneq ($(strip $(BUILD_VERBOSE)),)
  export BUILD_VERBOSE
  CHECK_VERBOSE := -v
# ARFLAGS+=v
endif

ifneq ($(strip $(HAVE_DOT_CONFIG)),y)
# pull in settings 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 ($(BUILD_OUTPUT),)
# Invoke a second make in the output directory, passing relevant variables
# Check that the output directory actually exists
saved-output := $(BUILD_OUTPUT)
BUILD_OUTPUT := $(shell cd $(BUILD_OUTPUT) && /bin/pwd)
$(if $(wildcard $(BUILD_OUTPUT)),, \
     $(error output directory "$(saved-output)" does not exist))

.PHONY: $(MAKECMDGOALS)

$(filter-out _all,$(MAKECMDGOALS)) _all: $(BUILD_OUTPUT)/Rules.mak $(BUILD_OUTPUT)/Makefile all_tree
	$(Q)$(MAKE) -C $(BUILD_OUTPUT) \
	top_srcdir=$(top_srcdir) \
	top_builddir=$(top_builddir) \
	BUILD_SRC=$(top_srcdir) \
	-f $(CURDIR)/Makefile $@

$(BUILD_OUTPUT)/Rules.mak:
	@echo > $@
	@echo top_srcdir=$(top_srcdir) >> $@
	@echo top_builddir=$(BUILD_OUTPUT) >> $@
	@echo include $(top_srcdir)/Rules.mak >> $@

$(BUILD_OUTPUT)/Makefile:
	@echo > $@
	@echo top_srcdir=$(top_srcdir) >> $@
	@echo top_builddir=$(BUILD_OUTPUT) >> $@
	@echo BUILD_SRC='$$(top_srcdir)' >> $@
	@echo include '$$(BUILD_SRC)'/Makefile >> $@

# Leave processing to above invocation of make
skip-makefile := 1
endif # ifneq ($(BUILD_OUTPUT),)
endif # ifeq ($(BUILD_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

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 '  html			- create html-based cross-reference'
	@echo
	@echo 'Configuration:'
	@echo '  allnoconfig		- disable all symbols in .config'
	@echo '  allyesconfig		- enable all symbols in .config (see defconfig)'
	@echo '  allbareconfig		- enable all applets without any sub-features'
	@echo '  config		- text based configurator (of last resort)'
	@echo '  defconfig		- set .config to largest generic configuration'
	@echo '  menuconfig		- interactive curses-based configurator'
	@echo '  oldconfig		- resolve any unresolved symbols in .config'
	@echo '  hosttools  		- build sed for the host.'
	@echo '  			  You can use these commands if the commands on the host'
	@echo '  			  is unusable. Afterwards use it like:'
	@echo '			  make SED="$(top_builddir)/sed"'
	@echo
	@echo 'Installation:'
	@echo '  install		- install busybox into $(PREFIX)'
	@echo '  uninstall'
	@echo
	@echo 'Development:'
	@echo '  baseline		- create busybox_old for bloatcheck.'
	@echo '  bloatcheck		- show size difference between old and new versions'
	@echo '  check			- run the test suite for all applets'
	@echo '  checkhelp		- check for missing help-entries in Config.in'
	@echo '  randconfig		- generate a random configuration'
	@echo '  release		- create a distribution tarball'
	@echo '  sizes			- show size of all enabled busybox symbols'
	@echo '  objsizes		- show size of each .o object built'
	@echo


include $(top_srcdir)/Rules.mak

ifneq ($(strip $(HAVE_DOT_CONFIG)),y)

# Default target if none was requested explicitly
all: menuconfig

# 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
	$(Q)$(MAKE) -C scripts/config conf
	-@if [ ! -f .config ] ; then \
		touch .config; \
	fi

scripts/config/mconf: scripts/config/Makefile
	$(Q)$(MAKE) -C scripts/config ncurses conf mconf
	-@if [ ! -f .config ] ; then \
		touch .config; \
	fi

menuconfig: scripts/config/mconf
	@[ -f .config ] || $(MAKE) $(MAKEFLAGS) defconfig
	@./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) > /dev/null

allnoconfig: scripts/config/conf
	@./scripts/config/conf -n $(CONFIG_CONFIG_IN) > /dev/null

# defconfig is allyesconfig minus any features that are specialized enough
# or cause enough behavior change that the user really should switch them on
# manually if that's what they want.  Sort of "maximum sane config".

defconfig: scripts/config/conf
	@./scripts/config/conf -y $(CONFIG_CONFIG_IN) > /dev/null
	@$(SED) -i -r -e "s/^(CONFIG_(DEBUG.*|STATIC|SELINUX|NITPICK|BUILD_(AT_ONCE|LIBBUSYBOX)|FEATURE_(DEVFS|FULL_LIBBUSYBOX|SHARED_BUSYBOX|MTAB_SUPPORT|CLEAN_UP|UDHCP_DEBUG)|INSTALL_NO_USR))=.*/# \1 is not set/" .config
	@./scripts/config/conf -o $(CONFIG_CONFIG_IN) > /dev/null


allbareconfig: scripts/config/conf
	@./scripts/config/conf -y $(CONFIG_CONFIG_IN) > /dev/null
	@$(SED) -i -r -e "s/^(CONFIG_(DEBUG|STATIC|SELINUX|DEVFSD|NC_GAPING_SECURITY_HOLE|BUILD_AT_ONCE)).*/# \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
	@yes n | ./scripts/config/conf -o $(CONFIG_CONFIG_IN) > /dev/null

hosttools:
	$(Q)cp .config .config.bak || noold=yea
	$(Q)$(MAKE) CC="$(HOSTCC)" CFLAGS="$(HOSTCFLAGS) $(INCS)" allnoconfig
	$(Q)mv .config .config.in
	$(Q)(grep -v CONFIG_SED .config.in ; \
	 echo "CONFIG_SED=y" ; ) > .config
	$(Q)$(MAKE) CC="$(HOSTCC)" CFLAGS="$(HOSTCFLAGS) $(INCS)" oldconfig include/bb_config.h
	$(Q)$(MAKE) CC="$(HOSTCC)" CFLAGS="$(HOSTCFLAGS) $(INCS)" busybox
	$(Q)[ -f .config.bak ] && mv .config.bak .config || rm .config
	mv busybox sed
	@echo "Now do: $(MAKE) SED=$(top_builddir)/sed <target>"

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))

endif # ifneq ($(strip $(HAVE_DOT_CONFIG)),y)

-include $(top_builddir)/.config
-include $(top_builddir)/.depend


ifeq ($(strip $(CONFIG_BUILD_AT_ONCE)),y)
libraries-y:=
# Which parts of the internal libs are requested?
# Per default we only want what was actually selected.
# -a denotes all while -y denotes the selected ones.
ifeq ($(strip $(CONFIG_FEATURE_FULL_LIBBUSYBOX)),y)
LIBRARY_DEFINE:=$(LIBRARY_DEFINE-a)
LIBRARY_SRC   :=$(LIBRARY_SRC-a)
else # CONFIG_FEATURE_FULL_LIBBUSYBOX
LIBRARY_DEFINE:=$(LIBRARY_DEFINE-y)
LIBRARY_SRC   :=$(LIBRARY_SRC-y)
endif # CONFIG_FEATURE_FULL_LIBBUSYBOX
APPLET_SRC:=$(APPLET_SRC-y)
APPLETS_DEFINE:=$(APPLETS_DEFINE-y)
else  # CONFIG_BUILD_AT_ONCE
APPLET_SRC:=
# no --combine, build archives out of the individual .o
# This was the old way the binary was built.
libbusybox-obj:=archival/libunarchive/libunarchive.a \
	networking/libiproute/libiproute.a \
	libpwdgrp/libpwdgrp.a \
	coreutils/libcoreutils/libcoreutils.a \
	libbb/libbb.a
libbusybox-obj:=$(patsubst %,$(top_builddir)/%,$(libbusybox-obj))

ifeq ($(strip $(CONFIG_FEATURE_SHARED_BUSYBOX)),y)
# linking against libbusybox, so don't build the .a already contained in the .so
libraries-y:=$(filter-out $(libbusybox-obj),$(libraries-y))
endif # CONFIG_FEATURE_SHARED_BUSYBOX
endif # CONFIG_BUILD_AT_ONCE


ifeq ($(strip $(CONFIG_BUILD_LIBBUSYBOX)),y)
LD_LIBBUSYBOX:=libbusybox.so
LIBBUSYBOX_SONAME:=$(LD_LIBBUSYBOX).$(MAJOR_VERSION).$(MINOR_VERSION).$(SUBLEVEL_VERSION)
DO_INSTALL_LIBS:=$(LD_LIBBUSYBOX) \
	$(LD_LIBBUSYBOX).$(MAJOR_VERSION) \
	$(LD_LIBBUSYBOX).$(MAJOR_VERSION).$(MINOR_VERSION)
endif # CONFIG_BUILD_LIBBUSYBOX

ifeq ($(strip $(CONFIG_BUILD_AT_ONCE)),y)
ifneq ($(strip $(CONFIG_FEATURE_SHARED_BUSYBOX)),y)
# --combine but not linking against libbusybox, so compile all
BUSYBOX_SRC   := $(LIBRARY_SRC)
BUSYBOX_DEFINE:= $(LIBRARY_DEFINE)
endif # !CONFIG_FEATURE_SHARED_BUSYBOX
$(LIBBUSYBOX_SONAME): $(LIBRARY_SRC)
else # CONFIG_BUILD_AT_ONCE
$(LIBBUSYBOX_SONAME): $(libbusybox-obj)
endif # CONFIG_BUILD_AT_ONCE

ifeq ($(strip $(CONFIG_FEATURE_SHARED_BUSYBOX)),y)
LDBUSYBOX:=-L$(top_builddir) -lbusybox
endif

ifeq ($(strip $(CONFIG_BUILD_LIBBUSYBOX)),y)
$(LIBBUSYBOX_SONAME):
ifndef MAJOR_VERSION
	$(error MAJOR_VERSION needed for $@ is not defined)
endif
	$(do_link.so) \
	-Wl,-soname=$(LD_LIBBUSYBOX).$(MAJOR_VERSION) \
	-Wl,-z,combreloc
	@rm -f $(DO_INSTALL_LIBS)
	@for i in $(DO_INSTALL_LIBS); do ln -s $(@) $$i ; done
	$(do_strip)

endif # ifeq ($(strip $(CONFIG_BUILD_LIBBUSYBOX)),y)

busybox_unstripped: .depend $(LIBBUSYBOX_SONAME) $(BUSYBOX_SRC) $(APPLET_SRC) $(libraries-y)
	$(do_link)

busybox: busybox_unstripped
	$(Q)cp busybox_unstripped busybox
	$(do_strip)

%.bflt: %_unstripped
	$(do_elf2flt)

busybox.links: $(top_srcdir)/applets/busybox.mkll include/bb_config.h $(top_srcdir)/include/applets.h
	$(Q)-$(SHELL) $^ >$@

install: $(top_srcdir)/applets/install.sh busybox busybox.links
	$(Q)DO_INSTALL_LIBS="$(strip $(LIBBUSYBOX_SONAME) $(DO_INSTALL_LIBS))" \
		$(SHELL) $< $(PREFIX) $(INSTALL_OPTS)
ifeq ($(strip $(CONFIG_FEATURE_SUID)),y)
	@echo
	@echo
	@echo --------------------------------------------------
	@echo You will probably need to make your busybox binary
	@echo setuid root to ensure all configured applets will
	@echo work properly.
	@echo --------------------------------------------------
	@echo
endif

uninstall: busybox.links
	rm -f $(PREFIX)/bin/busybox
	for i in `cat busybox.links` ; do rm -f $(PREFIX)$$i; done
ifneq ($(strip $(DO_INSTALL_LIBS)),n)
	for i in $(LIBBUSYBOX_SONAME) $(DO_INSTALL_LIBS); do \
		rm -f $(PREFIX)$$i; \
	done
endif

check test: busybox
	bindir=$(top_builddir) srcdir=$(top_srcdir)/testsuite SED="$(SED)" \
	$(SHELL) $(top_srcdir)/testsuite/runtest $(CHECK_VERBOSE)

checkhelp:
	$(Q)$(top_srcdir)/scripts/checkhelp.awk \
		$(wildcard $(patsubst %,%/Config.in,$(SRC_DIRS) ./))

sizes: busybox_unstripped
	$(NM) --size-sort $(<)

bloatcheck: busybox_old busybox_unstripped
	@$(top_srcdir)/scripts/bloat-o-meter busybox_old busybox_unstripped

baseline: busybox_unstripped
	@mv busybox_unstripped busybox_old

objsizes: busybox_unstripped
	$(SHELL) $(top_srcdir)/scripts/objsizes

# Documentation Targets
doc: docs/busybox.pod docs/BusyBox.txt docs/BusyBox.1 docs/BusyBox.html

docs/busybox.pod : $(top_srcdir)/docs/busybox_header.pod $(top_srcdir)/include/usage.h $(top_srcdir)/docs/busybox_footer.pod $(top_srcdir)/docs/autodocifier.pl
	$(disp_doc)
	$(Q)-mkdir -p docs
	$(Q)-( cat $(top_srcdir)/docs/busybox_header.pod ; \
	    $(top_srcdir)/docs/autodocifier.pl $(top_srcdir)/include/usage.h ; \
	    cat $(top_srcdir)/docs/busybox_footer.pod ; ) > docs/busybox.pod

docs/BusyBox.txt: docs/busybox.pod
	$(disp_doc)
	$(Q)-mkdir -p docs
	$(Q)-pod2text $< > $@

docs/BusyBox.1: docs/busybox.pod
	$(disp_doc)
	$(Q)-mkdir -p docs
	$(Q)-pod2man --center=BusyBox --release="version $(VERSION)" \
		$< > $@

docs/BusyBox.html: docs/busybox.net/BusyBox.html
	$(disp_doc)
	$(Q)-mkdir -p docs
	$(Q)-rm -f docs/BusyBox.html
	$(Q)-cp docs/busybox.net/BusyBox.html docs/BusyBox.html

docs/busybox.net/BusyBox.html: docs/busybox.pod
	$(Q)-mkdir -p docs/busybox.net
	$(Q)-pod2html --noindex $< > \
	    docs/busybox.net/BusyBox.html
	$(Q)-rm -f pod2htm*

# The nifty new dependency stuff
scripts/bb_mkdep: $(top_srcdir)/scripts/bb_mkdep.c
	$(do_link.h)

DEP_INCLUDES := include/bb_config.h

ifeq ($(strip $(CONFIG_BBCONFIG)),y)
DEP_INCLUDES += include/bbconfigopts.h

include/bbconfigopts.h: .config $(top_srcdir)/scripts/config/mkconfigs
	$(disp_gen)
	$(Q)$(top_srcdir)/scripts/config/mkconfigs > $@
endif

ifeq ($(strip $(CONFIG_FEATURE_COMPRESS_USAGE)),y)
USAGE_BIN:=scripts/usage
$(USAGE_BIN): $(top_srcdir)/scripts/usage.c .config \
		$(top_srcdir)/include/usage.h
	$(do_link.h)

DEP_INCLUDES += include/usage_compressed.h

include/usage_compressed.h: .config $(USAGE_BIN) \
		$(top_srcdir)/scripts/usage_compressed
	$(Q)SED="$(SED)" $(SHELL) $(top_srcdir)/scripts/usage_compressed \
	"$(top_builddir)/scripts" > $@
endif # CONFIG_FEATURE_COMPRESS_USAGE

depend dep: .depend
.depend: scripts/bb_mkdep $(USAGE_BIN) $(DEP_INCLUDES)
	$(disp_gen)
	$(Q)rm -f .depend
	$(Q)mkdir -p include/config
	$(Q)scripts/bb_mkdep -I $(top_srcdir)/include $(top_srcdir) > $@.tmp
	$(Q)mv $@.tmp $@

include/bb_config.h: .config
	@if [ ! -x $(top_builddir)/scripts/config/conf ] ; then \
	    $(MAKE) -C scripts/config conf; \
	fi;
	@$(top_builddir)/scripts/config/conf -o $(CONFIG_CONFIG_IN)

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 \
	    libbusybox.so* \
	    .config.old busybox busybox_unstripped \
	    include/usage_compressed.h scripts/usage
	- rm -r -f _install testsuite/links
	- find . -name .\*.flags -o -name \*.o  -o -name \*.om -o -name \*.syn \
	    -o -name \*.os -o -name \*.osm -o -name \*.a | xargs rm -f

distclean: clean
	rm -f scripts/bb_mkdep scripts/usage
	rm -r -f include/config include/config.h $(DEP_INCLUDES)
	find . -name .depend'*' -print0 | xargs -0 rm -f
	find . -name '*.rej' -print0 | xargs -0 rm -f
	rm -f .hdepend busybox_old .config .config.old .config.cmd

release: distclean #doc
	cd ..; \
	rm -r -f $(PROG)-$(VERSION); \
	cp -a busybox $(PROG)-$(VERSION); \
	\
	find $(PROG)-$(VERSION)/ -type d \
		-name .svn \
		-print \
		-exec rm -r -f {} \; ; \
	\
	find $(PROG)-$(VERSION)/ -type f \
		-name .\#* \
		-print \
		-exec rm -f {} \; ; \
	\
	tar -cvzf $(PROG)-$(VERSION).tar.gz $(PROG)-$(VERSION)/;

tags:
	ctags -R .

# documentation, cross-reference
# Modern distributions already ship synopsis packages (e.g. debian)
# If you have an old distribution go to http://synopsis.fresco.org/
syn_tgt := $(wildcard $(patsubst %,%/*.c,$(SRC_DIRS)))
syn     := $(patsubst %.c, %.syn, $(syn_tgt))

%.syn: %.c
	synopsis -p C -l Comments.SSDFilter,Comments.Previous $(INCS) -Wp,verbose,debug,preprocess,cppflags="'$(CFLAGS) $(EXTRA_CFLAGS) $(LDFLAGS) $(PROG_CFLAGS) $(PROG_LDFLAGS) $(CFLAGS_COMBINE) $(APPLETS_DEFINE) $(BUSYBOX_DEFINE)'" -o $@ $<
html: $(syn)
	synopsis -f HTML -Wf,title="'BusyBox Documentation'" -o $@ $^


endif # ifeq ($(skip-makefile),)