summaryrefslogtreecommitdiff
path: root/Makefile
blob: 53f8ad59922f888bdc373c374bcf4aa55ab556cd (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
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
# Makefile for buildroot
#
# Copyright (C) 1999-2005 by Erik Andersen <andersen@codepoet.org>
# Copyright (C) 2006-2014 by the Buildroot developers <buildroot@uclibc.org>
# Copyright (C) 2014 by the Buildroot developers <buildroot@buildroot.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
#

#--------------------------------------------------------------
# Just run 'make menuconfig', configure stuff, then run 'make'.
# You shouldn't need to mess with anything beyond this point...
#--------------------------------------------------------------

# Set and export the version string
export BR2_VERSION := 2014.11-git

# Check for minimal make version (note: this check will break at make 10.x)
MIN_MAKE_VERSION = 3.81
ifneq ($(firstword $(sort $(MAKE_VERSION) $(MIN_MAKE_VERSION))),$(MIN_MAKE_VERSION))
$(error You have make '$(MAKE_VERSION)' installed. GNU make >= $(MIN_MAKE_VERSION) is required)
endif

export HOSTARCH := $(shell uname -m | \
	sed -e s/i.86/x86/ \
	    -e s/sun4u/sparc64/ \
	    -e s/arm.*/arm/ \
	    -e s/sa110/arm/ \
	    -e s/ppc64/powerpc64/ \
	    -e s/ppc/powerpc/ \
	    -e s/macppc/powerpc/\
	    -e s/sh.*/sh/)

# Parallel execution of this Makefile is disabled because it changes
# the packages building order, that can be a problem for two reasons:
# - If a package has an unspecified optional dependency and that
#   dependency is present when the package is built, it is used,
#   otherwise it isn't (but compilation happily proceeds) so the end
#   result will differ if the order is swapped due to parallel
#   building.
# - Also changing the building order can be a problem if two packages
#   manipulate the same file in the target directory.
#
# Taking into account the above considerations, if you still want to execute
# this top-level Makefile in parallel comment the ".NOTPARALLEL" line and
# build using the following command:
#	make BR2_JLEVEL= -j$((`getconf _NPROCESSORS_ONLN`+1))
.NOTPARALLEL:

# absolute path
TOPDIR := $(shell pwd)
CONFIG_CONFIG_IN = Config.in
CONFIG = support/kconfig
DATE := $(shell date +%Y%m%d)

# Compute the full local version string so packages can use it as-is
# Need to export it, so it can be got from environment in children (eg. mconf)
export BR2_VERSION_FULL := $(BR2_VERSION)$(shell $(TOPDIR)/support/scripts/setlocalversion)

noconfig_targets := menuconfig nconfig gconfig xconfig config oldconfig randconfig \
	defconfig %_defconfig allyesconfig allnoconfig silentoldconfig release \
	randpackageconfig allyespackageconfig allnopackageconfig \
	source-check print-version olddefconfig

# Strip quotes and then whitespaces
qstrip = $(strip $(subst ",,$(1)))
#"))

# Variables for use in Make constructs
comma := ,
empty :=
space := $(empty) $(empty)

ifneq ("$(origin O)", "command line")
O := output
CONFIG_DIR := $(TOPDIR)
NEED_WRAPPER =
else
# other packages might also support Linux-style out of tree builds
# with the O=<dir> syntax (E.G. BusyBox does). As make automatically
# forwards command line variable definitions those packages get very
# confused. Fix this by telling make to not do so
MAKEOVERRIDES =
# strangely enough O is still passed to submakes with MAKEOVERRIDES
# (with make 3.81 atleast), the only thing that changes is the output
# of the origin function (command line -> environment).
# Unfortunately some packages don't look at origin (E.G. uClibc 0.9.31+)
# To really make O go away, we have to override it.
override O := $(O)
CONFIG_DIR := $(O)
# we need to pass O= everywhere we call back into the toplevel makefile
EXTRAMAKEARGS = O=$(O)
NEED_WRAPPER = y
endif

# bash prints the name of the directory on 'cd <dir>' if CDPATH is
# set, so unset it here to not cause problems. Notice that the export
# line doesn't affect the environment of $(shell ..) calls, so
# explictly throw away any output from 'cd' here.
export CDPATH :=
BASE_DIR := $(shell mkdir -p $(O) && cd $(O) >/dev/null && pwd)
$(if $(BASE_DIR),, $(error output directory "$(O)" does not exist))


# Handling of BR2_EXTERNAL.
#
# The value of BR2_EXTERNAL is stored in .br-external in the output directory.
# On subsequent invocations of make, it is read in. It can still be overridden
# on the command line, therefore the file is re-created every time make is run.
#
# When BR2_EXTERNAL is not set, the .br-external file is removed and we point
# to support/dummy-external. This makes sure we can unconditionally include the
# Config.in and external.mk from the BR2_EXTERNAL directory. In this case,
# override is necessary so the user can clear BR2_EXTERNAL from the command
# line, but the dummy path is still used internally.

BR2_EXTERNAL_FILE = $(BASE_DIR)/.br-external
-include $(BR2_EXTERNAL_FILE)
ifeq ($(BR2_EXTERNAL),)
  override BR2_EXTERNAL = support/dummy-external
  $(shell rm -f $(BR2_EXTERNAL_FILE))
else
  _BR2_EXTERNAL = $(shell cd $(BR2_EXTERNAL) >/dev/null 2>&1 && pwd)
  ifeq ($(_BR2_EXTERNAL),)
    $(error BR2_EXTERNAL='$(BR2_EXTERNAL)' does not exist, relative to $(TOPDIR))
  endif
  override BR2_EXTERNAL := $(_BR2_EXTERNAL)
  $(shell echo BR2_EXTERNAL ?= $(BR2_EXTERNAL) > $(BR2_EXTERNAL_FILE))
endif

# To make sure the the environment variable overrides the .config option,
# set this before including .config.
ifneq ($(BR2_DL_DIR),)
DL_DIR := $(BR2_DL_DIR)
endif


# Need that early, before we scan packages
# Avoids doing the $(or...) everytime
BR_GRAPH_OUT := $(or $(BR2_GRAPH_OUT),pdf)

BUILD_DIR := $(BASE_DIR)/build
BINARIES_DIR := $(BASE_DIR)/images
TARGET_DIR := $(BASE_DIR)/target
# initial definition so that 'make clean' works for most users, even without
# .config. HOST_DIR will be overwritten later when .config is included.
HOST_DIR := $(BASE_DIR)/host

LEGAL_INFO_DIR = $(BASE_DIR)/legal-info
REDIST_SOURCES_DIR_TARGET = $(LEGAL_INFO_DIR)/sources
REDIST_SOURCES_DIR_HOST = $(LEGAL_INFO_DIR)/host-sources
LICENSE_FILES_DIR_TARGET = $(LEGAL_INFO_DIR)/licenses
LICENSE_FILES_DIR_HOST = $(LEGAL_INFO_DIR)/host-licenses
LEGAL_MANIFEST_CSV_TARGET = $(LEGAL_INFO_DIR)/manifest.csv
LEGAL_MANIFEST_CSV_HOST = $(LEGAL_INFO_DIR)/host-manifest.csv
LEGAL_LICENSES_TXT_TARGET = $(LEGAL_INFO_DIR)/licenses.txt
LEGAL_LICENSES_TXT_HOST = $(LEGAL_INFO_DIR)/host-licenses.txt
LEGAL_WARNINGS = $(LEGAL_INFO_DIR)/.warnings
LEGAL_REPORT = $(LEGAL_INFO_DIR)/README

BR2_CONFIG = $(CONFIG_DIR)/.config

# Pull in the user's configuration file
ifeq ($(filter $(noconfig_targets),$(MAKECMDGOALS)),)
-include $(BR2_CONFIG)
endif

# To put more focus on warnings, be less verbose as default
# Use 'make V=1' to see the full commands
ifdef V
  ifeq ("$(origin V)", "command line")
    KBUILD_VERBOSE = $(V)
  endif
endif
ifndef KBUILD_VERBOSE
  KBUILD_VERBOSE = 0
endif

ifeq ($(KBUILD_VERBOSE),1)
  quiet =
  Q =
ifndef VERBOSE
  VERBOSE = 1
endif
else
  quiet = quiet_
  Q = @
endif

# we want bash as shell
SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \
	 else if [ -x /bin/bash ]; then echo /bin/bash; \
	 else echo sh; fi; fi)

# kconfig uses CONFIG_SHELL
CONFIG_SHELL := $(SHELL)

export SHELL CONFIG_SHELL quiet Q KBUILD_VERBOSE VERBOSE

ifndef HOSTAR
HOSTAR := ar
endif
ifndef HOSTAS
HOSTAS := as
endif
ifndef HOSTCC
HOSTCC := gcc
HOSTCC := $(shell which $(HOSTCC) || type -p $(HOSTCC) || echo gcc)
endif
HOSTCC_NOCCACHE := $(HOSTCC)
ifndef HOSTCXX
HOSTCXX := g++
HOSTCXX := $(shell which $(HOSTCXX) || type -p $(HOSTCXX) || echo g++)
endif
HOSTCXX_NOCCACHE := $(HOSTCXX)
ifndef HOSTFC
HOSTFC := gfortran
endif
ifndef HOSTCPP
HOSTCPP := cpp
endif
ifndef HOSTLD
HOSTLD := ld
endif
ifndef HOSTLN
HOSTLN := ln
endif
ifndef HOSTNM
HOSTNM := nm
endif
ifndef HOSTOBJCOPY
HOSTOBJCOPY := objcopy
endif
ifndef HOSTRANLIB
HOSTRANLIB := ranlib
endif
HOSTAR := $(shell which $(HOSTAR) || type -p $(HOSTAR) || echo ar)
HOSTAS := $(shell which $(HOSTAS) || type -p $(HOSTAS) || echo as)
HOSTFC := $(shell which $(HOSTLD) || type -p $(HOSTLD) || echo || which g77 || type -p g77 || echo gfortran)
HOSTCPP := $(shell which $(HOSTCPP) || type -p $(HOSTCPP) || echo cpp)
HOSTLD := $(shell which $(HOSTLD) || type -p $(HOSTLD) || echo ld)
HOSTLN := $(shell which $(HOSTLN) || type -p $(HOSTLN) || echo ln)
HOSTNM := $(shell which $(HOSTNM) || type -p $(HOSTNM) || echo nm)
HOSTOBJCOPY := $(shell which $(HOSTOBJCOPY) || type -p $(HOSTOBJCOPY) || echo objcopy)
HOSTRANLIB := $(shell which $(HOSTRANLIB) || type -p $(HOSTRANLIB) || echo ranlib)

export HOSTAR HOSTAS HOSTCC HOSTCXX HOSTFC HOSTLD
export HOSTCC_NOCCACHE HOSTCXX_NOCCACHE

# Make sure pkg-config doesn't look outside the buildroot tree
unexport PKG_CONFIG_PATH
unexport PKG_CONFIG_SYSROOT_DIR
unexport PKG_CONFIG_LIBDIR

# Having DESTDIR set in the environment confuses the installation
# steps of some packages.
unexport DESTDIR

# Causes breakage with packages that needs host-ruby
unexport RUBYOPT

include package/pkg-utils.mk

ifeq ($(BR2_HAVE_DOT_CONFIG),y)

################################################################################
#
# Hide troublesome environment variables from sub processes
#
################################################################################
unexport CROSS_COMPILE
unexport ARCH
unexport CC
unexport CXX
unexport CPP
unexport CFLAGS
unexport CXXFLAGS
unexport GREP_OPTIONS
unexport TAR_OPTIONS
unexport CONFIG_SITE
unexport QMAKESPEC
unexport TERMINFO
unexport MACHINE

GNU_HOST_NAME := $(shell support/gnuconfig/config.guess)

TARGETS :=

# silent mode requested?
QUIET := $(if $(findstring s,$(MAKEFLAGS)),-q)

# Strip off the annoying quoting
ARCH := $(call qstrip,$(BR2_ARCH))

KERNEL_ARCH := $(shell echo "$(ARCH)" | sed -e "s/-.*//" \
	-e s/i.86/i386/ -e s/sun4u/sparc64/ \
	-e s/arcle/arc/ \
	-e s/arceb/arc/ \
	-e s/arm.*/arm/ -e s/sa110/arm/ \
	-e s/aarch64/arm64/ \
	-e s/bfin/blackfin/ \
	-e s/parisc64/parisc/ \
	-e s/powerpc64.*/powerpc/ \
	-e s/ppc.*/powerpc/ -e s/mips.*/mips/ \
	-e s/sh.*/sh/ \
	-e s/microblazeel/microblaze/)

ZCAT := $(call qstrip,$(BR2_ZCAT))
BZCAT := $(call qstrip,$(BR2_BZCAT))
XZCAT := $(call qstrip,$(BR2_XZCAT))
TAR_OPTIONS = $(call qstrip,$(BR2_TAR_OPTIONS)) -xf

# packages compiled for the host go here
HOST_DIR := $(call qstrip,$(BR2_HOST_DIR))

# Quotes are needed for spaces and all in the original PATH content.
BR_PATH = "$(HOST_DIR)/bin:$(HOST_DIR)/sbin:$(HOST_DIR)/usr/bin:$(HOST_DIR)/usr/sbin:$(PATH)"

TARGET_SKELETON = $(TOPDIR)/system/skeleton

# Location of a file giving a big fat warning that output/target
# should not be used as the root filesystem.
TARGET_DIR_WARNING_FILE = $(TARGET_DIR)/THIS_IS_NOT_YOUR_ROOT_FILESYSTEM

ifeq ($(BR2_CCACHE),y)
CCACHE := $(HOST_DIR)/usr/bin/ccache
BR_CACHE_DIR = $(call qstrip,$(BR2_CCACHE_DIR))
export BR_CACHE_DIR
HOSTCC := $(CCACHE) $(HOSTCC)
HOSTCXX := $(CCACHE) $(HOSTCXX)
endif

# Scripts in support/ or post-build scripts may need to reference
# these locations, so export them so it is easier to use
export BR2_CONFIG
export TARGET_DIR
export STAGING_DIR
export HOST_DIR
export BINARIES_DIR
export BASE_DIR

################################################################################
#
# You should probably leave this stuff alone unless you know
# what you are doing.
#
################################################################################

all: world

# Include legacy before the other things, because package .mk files
# may rely on it.
ifneq ($(BR2_DEPRECATED),y)
include Makefile.legacy
endif

include package/Makefile.in
include support/dependencies/dependencies.mk

# We also need the various per-package makefiles, which also add
# each selected package to TARGETS if that package was selected
# in the .config file.
include toolchain/*.mk
include toolchain/*/*.mk

# Include the package override file if one has been provided in the
# configuration.
PACKAGE_OVERRIDE_FILE = $(call qstrip,$(BR2_PACKAGE_OVERRIDE_FILE))
ifneq ($(PACKAGE_OVERRIDE_FILE),)
-include $(PACKAGE_OVERRIDE_FILE)
endif

include $(sort $(wildcard package/*/*.mk))

include boot/common.mk
include linux/linux.mk
include system/system.mk
include fs/common.mk

include $(BR2_EXTERNAL)/external.mk

TARGETS_SOURCE := $(patsubst %,%-source,$(TARGETS))
TARGETS_DIRCLEAN := $(patsubst %,%-dirclean,$(TARGETS))

# host-* dependencies have to be handled specially, as those aren't
# visible in Kconfig and hence not added to a variable like TARGETS.
# instead, find all the host-* targets listed in each <PKG>_DEPENDENCIES
# variable for each enabled target.
# Notice: this only works for newstyle gentargets/autotargets packages
TARGETS_HOST_DEPS = $(sort $(filter host-%,$(foreach dep,\
		$(addsuffix _DEPENDENCIES,\
			$(call UPPERCASE,$(TARGETS) $(TARGETS_ROOTFS))),\
		$($(dep)))))
# Host packages can in turn have their own dependencies. Likewise find
# all the package names listed in the HOST_<PKG>_DEPENDENCIES for each
# host package found above. Ideally this should be done recursively until
# no more packages are found, but that's hard to do in make, so limit to
# 1 level for now.
HOST_DEPS = $(sort $(foreach dep,\
		$(addsuffix _DEPENDENCIES,$(call UPPERCASE,$(TARGETS_HOST_DEPS))),\
		$($(dep))))
HOST_SOURCE += $(addsuffix -source,$(sort $(TARGETS_HOST_DEPS) $(HOST_DEPS)))

TARGETS_LEGAL_INFO := $(patsubst %,%-legal-info,\
		$(TARGETS) $(TARGETS_HOST_DEPS) $(HOST_DEPS))))

dirs: $(BUILD_DIR) $(STAGING_DIR) $(TARGET_DIR) \
	$(HOST_DIR) $(BINARIES_DIR)

$(BUILD_DIR)/buildroot-config/auto.conf: $(BR2_CONFIG)
	$(MAKE1) $(EXTRAMAKEARGS) HOSTCC="$(HOSTCC_NOCCACHE)" HOSTCXX="$(HOSTCXX_NOCCACHE)" silentoldconfig

prepare: $(BUILD_DIR)/buildroot-config/auto.conf

world: target-post-image

.PHONY: all world toolchain dirs clean distclean source outputmakefile \
	legal-info legal-info-prepare legal-info-clean printvars \
	target-finalize target-post-image \
	$(TARGETS) $(TARGETS_ROOTFS) \
	$(TARGETS_DIRCLEAN) $(TARGETS_SOURCE) $(TARGETS_LEGAL_INFO) \
	$(BUILD_DIR) $(STAGING_DIR) $(TARGET_DIR) \
	$(HOST_DIR) $(BINARIES_DIR)

################################################################################
#
# staging and target directories do NOT list these as
# dependencies anywhere else
#
################################################################################
$(BUILD_DIR) $(HOST_DIR) $(BINARIES_DIR) $(LEGAL_INFO_DIR) $(REDIST_SOURCES_DIR_TARGET) $(REDIST_SOURCES_DIR_HOST):
	@mkdir -p $@

# We make a symlink lib32->lib or lib64->lib as appropriate
# MIPS64/n32 requires lib32 even though it's a 64-bit arch.
ifeq ($(BR2_ARCH_IS_64)$(BR2_MIPS_NABI32),y)
LIB_SYMLINK = lib64
else
LIB_SYMLINK = lib32
endif

$(STAGING_DIR):
	@mkdir -p $(STAGING_DIR)/bin
	@mkdir -p $(STAGING_DIR)/lib
	@ln -snf lib $(STAGING_DIR)/$(LIB_SYMLINK)
	@mkdir -p $(STAGING_DIR)/usr/lib
	@ln -snf lib $(STAGING_DIR)/usr/$(LIB_SYMLINK)
	@mkdir -p $(STAGING_DIR)/usr/include
	@mkdir -p $(STAGING_DIR)/usr/bin
	@ln -snf $(STAGING_DIR) $(BASE_DIR)/staging

ifeq ($(BR2_ROOTFS_SKELETON_CUSTOM),y)
TARGET_SKELETON = $(BR2_ROOTFS_SKELETON_CUSTOM_PATH)
endif

RSYNC_VCS_EXCLUSIONS = \
	--exclude .svn --exclude .git --exclude .hg --exclude .bzr \
	--exclude CVS

$(BUILD_DIR)/.root:
	mkdir -p $(TARGET_DIR)
	rsync -a --ignore-times $(RSYNC_VCS_EXCLUSIONS) \
		--chmod=Du+w --exclude .empty --exclude '*~' \
		$(TARGET_SKELETON)/ $(TARGET_DIR)/
	$(INSTALL) -m 0644 support/misc/target-dir-warning.txt $(TARGET_DIR_WARNING_FILE)
	@ln -snf lib $(TARGET_DIR)/$(LIB_SYMLINK)
	@mkdir -p $(TARGET_DIR)/usr
	@ln -snf lib $(TARGET_DIR)/usr/$(LIB_SYMLINK)
	touch $@

$(TARGET_DIR): $(BUILD_DIR)/.root

STRIP_FIND_CMD = find $(TARGET_DIR)
ifneq (,$(call qstrip,$(BR2_STRIP_EXCLUDE_DIRS)))
STRIP_FIND_CMD += \( $(call finddirclauses,$(TARGET_DIR),$(call qstrip,$(BR2_STRIP_EXCLUDE_DIRS))) \) -prune -o
endif
STRIP_FIND_CMD += -type f \( -perm /111 -o -name '*.so*' \)
# file exclusions:
# - libpthread.so: a non-stripped libpthread shared library is needed for
#   proper debugging of pthread programs using gdb.
# - kernel modules (*.ko): do not function properly when stripped like normal
#   applications and libraries. Normally kernel modules are already excluded
#   by the executable permission check above, so the explicit exclusion is only
#   done for kernel modules with incorrect permissions.
STRIP_FIND_CMD += -not \( $(call findfileclauses,libpthread*.so* *.ko $(call qstrip,$(BR2_STRIP_EXCLUDE_FILES))) \) -print

ifeq ($(BR2_ECLIPSE_REGISTER),y)
define TOOLCHAIN_ECLIPSE_REGISTER
	./support/scripts/eclipse-register-toolchain `readlink -f $(O)` \
		$(notdir $(TARGET_CROSS)) $(BR2_ARCH)
endef
TARGET_FINALIZE_HOOKS += TOOLCHAIN_ECLIPSE_REGISTER
endif

# Generate locale data. Basically, we call the localedef program
# (built by the host-localedef package) for each locale. The input
# data comes preferably from the toolchain, or if the toolchain does
# not have them (Linaro toolchains), we use the ones available on the
# host machine.
ifeq ($(BR2_TOOLCHAIN_USES_GLIBC),y)
GENERATE_LOCALE = $(call qstrip,$(BR2_GENERATE_LOCALE))
ifneq ($(GENERATE_LOCALE),)
TARGETS += host-localedef

define GENERATE_LOCALES
	$(Q)mkdir -p $(TARGET_DIR)/usr/lib/locale/
	$(Q)for locale in $(GENERATE_LOCALE) ; do \
		inputfile=`echo $${locale} | cut -f1 -d'.'` ; \
		charmap=`echo $${locale} | cut -f2 -d'.' -s` ; \
		if test -z "$${charmap}" ; then \
			charmap="UTF-8" ; \
		fi ; \
		echo "Generating locale $${inputfile}.$${charmap}" ; \
		I18NPATH=$(STAGING_DIR)/usr/share/i18n:/usr/share/i18n \
		$(HOST_DIR)/usr/bin/localedef \
			--prefix=$(TARGET_DIR) \
			--$(call LOWERCASE,$(BR2_ENDIAN))-endian \
			-i $${inputfile} -f $${charmap} \
			$${locale} ; \
	done
endef
TARGET_FINALIZE_HOOKS += GENERATE_LOCALES
endif
endif

ifeq ($(BR2_ENABLE_LOCALE_PURGE),y)
LOCALE_WHITELIST = $(BUILD_DIR)/locales.nopurge
LOCALE_NOPURGE = $(call qstrip,$(BR2_ENABLE_LOCALE_WHITELIST))

define PURGE_LOCALES
	rm -f $(LOCALE_WHITELIST)
	for i in $(LOCALE_NOPURGE) locale-archive; do echo $$i >> $(LOCALE_WHITELIST); done

	for dir in $(wildcard $(addprefix $(TARGET_DIR),/usr/share/locale /usr/share/X11/locale /usr/man /usr/share/man /usr/lib/locale)); \
	do \
		for lang in $$(cd $$dir; ls .|grep -v man); \
		do \
			grep -qx $$lang $(LOCALE_WHITELIST) || rm -rf $$dir/$$lang; \
		done; \
	done
endef
TARGET_FINALIZE_HOOKS += PURGE_LOCALES
endif

$(TARGETS_ROOTFS): target-finalize

target-finalize: $(TARGETS)
	@$(call MESSAGE,"Finalizing target directory")
	$(foreach hook,$(TARGET_FINALIZE_HOOKS),$($(hook))$(sep))
	rm -rf $(TARGET_DIR)/usr/include $(TARGET_DIR)/usr/share/aclocal \
		$(TARGET_DIR)/usr/lib/pkgconfig $(TARGET_DIR)/usr/share/pkgconfig \
		$(TARGET_DIR)/usr/lib/cmake $(TARGET_DIR)/usr/share/cmake
	find $(TARGET_DIR)/usr/{lib,share}/ -name '*.cmake' -print0 | xargs -0 rm -f
	find $(TARGET_DIR)/lib \( -name '*.a' -o -name '*.la' \) -print0 | xargs -0 rm -f
	find $(TARGET_DIR)/usr/lib \( -name '*.a' -o -name '*.la' \) -print0 | xargs -0 rm -f
ifneq ($(BR2_PACKAGE_GDB),y)
	rm -rf $(TARGET_DIR)/usr/share/gdb
endif
	rm -rf $(TARGET_DIR)/usr/man $(TARGET_DIR)/usr/share/man
	rm -rf $(TARGET_DIR)/usr/info $(TARGET_DIR)/usr/share/info
	rm -rf $(TARGET_DIR)/usr/doc $(TARGET_DIR)/usr/share/doc
	rm -rf $(TARGET_DIR)/usr/share/gtk-doc
	-rmdir $(TARGET_DIR)/usr/share 2>/dev/null
ifeq ($(BR2_PACKAGE_PYTHON_PY_ONLY)$(BR2_PACKAGE_PYTHON3_PY_ONLY),y)
	find $(TARGET_DIR)/usr/lib/ -name '*.pyc' -print0 | xargs -0 rm -f
endif
ifeq ($(BR2_PACKAGE_PYTHON_PYC_ONLY)$(BR2_PACKAGE_PYTHON3_PYC_ONLY),y)
	find $(TARGET_DIR)/usr/lib/ -name '*.py' -print0 | xargs -0 rm -f
endif
	$(STRIP_FIND_CMD) | xargs $(STRIPCMD) 2>/dev/null || true
	if test -d $(TARGET_DIR)/lib/modules; then \
		find $(TARGET_DIR)/lib/modules -type f -name '*.ko' | \
		xargs -r $(KSTRIPCMD); fi

# See http://sourceware.org/gdb/wiki/FAQ, "GDB does not see any threads
# besides the one in which crash occurred; or SIGTRAP kills my program when
# I set a breakpoint"
ifeq ($(BR2_TOOLCHAIN_HAS_THREADS),y)
	find $(TARGET_DIR)/lib -type f -name 'libpthread*.so*' | \
		xargs -r $(STRIPCMD) $(STRIP_STRIP_DEBUG)
endif

	mkdir -p $(TARGET_DIR)/etc
	# Mandatory configuration file and auxilliary cache directory
	# for recent versions of ldconfig
	touch $(TARGET_DIR)/etc/ld.so.conf
	mkdir -p $(TARGET_DIR)/var/cache/ldconfig
	if [ -x "$(TARGET_CROSS)ldconfig" ]; \
	then \
		$(TARGET_CROSS)ldconfig -r $(TARGET_DIR); \
	else \
		/sbin/ldconfig -r $(TARGET_DIR); \
	fi
	( \
		echo "NAME=Buildroot"; \
		echo "VERSION=$(BR2_VERSION_FULL)"; \
		echo "ID=buildroot"; \
		echo "VERSION_ID=$(BR2_VERSION)"; \
		echo "PRETTY_NAME=\"Buildroot $(BR2_VERSION)\"" \
	) >  $(TARGET_DIR)/etc/os-release

	@$(foreach d, $(call qstrip,$(BR2_ROOTFS_OVERLAY)), \
		$(call MESSAGE,"Copying overlay $(d)"); \
		rsync -a --ignore-times $(RSYNC_VCS_EXCLUSIONS) \
			--chmod=Du+w --exclude .empty --exclude '*~' \
			$(d)/ $(TARGET_DIR)$(sep))

	@$(foreach s, $(call qstrip,$(BR2_ROOTFS_POST_BUILD_SCRIPT)), \
		$(call MESSAGE,"Executing post-build script $(s)"); \
		$(EXTRA_ENV) $(s) $(TARGET_DIR) $(call qstrip,$(BR2_ROOTFS_POST_SCRIPT_ARGS))$(sep))

target-post-image: $(TARGETS_ROOTFS) target-finalize
	@$(foreach s, $(call qstrip,$(BR2_ROOTFS_POST_IMAGE_SCRIPT)), \
		$(call MESSAGE,"Executing post-image script $(s)"); \
		$(EXTRA_ENV) $(s) $(BINARIES_DIR) $(call qstrip,$(BR2_ROOTFS_POST_SCRIPT_ARGS))$(sep))

source: $(TARGETS_SOURCE) $(HOST_SOURCE)

external-deps:
	@$(MAKE1) -Bs DL_MODE=SHOW_EXTERNAL_DEPS $(EXTRAMAKEARGS) source | sort -u

legal-info-clean:
	@rm -fr $(LEGAL_INFO_DIR)

legal-info-prepare: $(LEGAL_INFO_DIR)
	@$(call MESSAGE,"Collecting legal info")
	@$(call legal-license-file,buildroot,COPYING,COPYING,HOST)
	@$(call legal-manifest,PACKAGE,VERSION,LICENSE,LICENSE FILES,SOURCE ARCHIVE,SOURCE SITE,TARGET)
	@$(call legal-manifest,PACKAGE,VERSION,LICENSE,LICENSE FILES,SOURCE ARCHIVE,SOURCE SITE,HOST)
	@$(call legal-manifest,buildroot,$(BR2_VERSION_FULL),GPLv2+,COPYING,not saved,not saved,HOST)
	@$(call legal-warning,the Buildroot source code has not been saved)
	@$(call legal-warning,the toolchain has not been saved)
	@cp $(BR2_CONFIG) $(LEGAL_INFO_DIR)/buildroot.config

legal-info: dirs legal-info-clean legal-info-prepare $(TARGETS_LEGAL_INFO) \
		$(REDIST_SOURCES_DIR_TARGET) $(REDIST_SOURCES_DIR_HOST)
	@cat support/legal-info/README.header >>$(LEGAL_REPORT)
	@if [ -r $(LEGAL_WARNINGS) ]; then \
		cat support/legal-info/README.warnings-header \
			$(LEGAL_WARNINGS) >>$(LEGAL_REPORT); \
		cat $(LEGAL_WARNINGS); fi
	@echo "Legal info produced in $(LEGAL_INFO_DIR)"
	@rm -f $(LEGAL_WARNINGS)

show-targets:
	@echo $(HOST_DEPS) $(TARGETS_HOST_DEPS) $(TARGETS) $(TARGETS_ROOTFS)

graph-build: $(O)/build/build-time.log
	@install -d $(O)/graphs
	$(foreach o,name build duration,./support/scripts/graph-build-time \
					--type=histogram --order=$(o) --input=$(<) \
					--output=$(O)/graphs/build.hist-$(o).$(BR_GRAPH_OUT) \
					$(if $(BR2_GRAPH_ALT),--alternate-colors)$(sep))
	$(foreach t,packages steps,./support/scripts/graph-build-time \
				   --type=pie-$(t) --input=$(<) \
				   --output=$(O)/graphs/build.pie-$(t).$(BR_GRAPH_OUT) \
				   $(if $(BR2_GRAPH_ALT),--alternate-colors)$(sep))

graph-depends-requirements:
	@dot -? >/dev/null 2>&1 || \
		{ echo "ERROR: The 'dot' program from Graphviz is needed for graph-depends" >&2; exit 1; }

graph-depends: graph-depends-requirements
	@$(INSTALL) -d $(O)/graphs
	@cd "$(CONFIG_DIR)"; \
	$(TOPDIR)/support/scripts/graph-depends $(BR2_GRAPH_DEPS_OPTS) \
	|tee $(BASE_DIR)/graphs/$(@).dot \
	|dot $(BR2_GRAPH_DOT_OPTS) -T$(BR_GRAPH_OUT) -o $(BASE_DIR)/graphs/$(@).$(BR_GRAPH_OUT)

else # ifeq ($(BR2_HAVE_DOT_CONFIG),y)

all: menuconfig

endif # ifeq ($(BR2_HAVE_DOT_CONFIG),y)

# configuration
# ---------------------------------------------------------------------------

HOSTCFLAGS = $(CFLAGS_FOR_BUILD)
export HOSTCFLAGS

$(BUILD_DIR)/buildroot-config/%onf:
	mkdir -p $(@D)/lxdialog
	$(MAKE) CC="$(HOSTCC_NOCCACHE)" HOSTCC="$(HOSTCC_NOCCACHE)" obj=$(@D) -C $(CONFIG) -f Makefile.br $(@F)

DEFCONFIG = $(call qstrip,$(BR2_DEFCONFIG))

# We don't want to fully expand BR2_DEFCONFIG here, so Kconfig will
# recognize that if it's still at its default $(CONFIG_DIR)/defconfig
COMMON_CONFIG_ENV = \
	BR2_DEFCONFIG='$(call qstrip,$(value BR2_DEFCONFIG))' \
	KCONFIG_AUTOCONFIG=$(BUILD_DIR)/buildroot-config/auto.conf \
	KCONFIG_AUTOHEADER=$(BUILD_DIR)/buildroot-config/autoconf.h \
	KCONFIG_TRISTATE=$(BUILD_DIR)/buildroot-config/tristate.config \
	BR2_CONFIG=$(BR2_CONFIG) \
	BR2_EXTERNAL=$(BR2_EXTERNAL)

xconfig: $(BUILD_DIR)/buildroot-config/qconf outputmakefile
	@mkdir -p $(BUILD_DIR)/buildroot-config
	@$(COMMON_CONFIG_ENV) $< $(CONFIG_CONFIG_IN)

gconfig: $(BUILD_DIR)/buildroot-config/gconf outputmakefile
	@mkdir -p $(BUILD_DIR)/buildroot-config
	@$(COMMON_CONFIG_ENV) srctree=$(TOPDIR) $< $(CONFIG_CONFIG_IN)

menuconfig: $(BUILD_DIR)/buildroot-config/mconf outputmakefile
	@mkdir -p $(BUILD_DIR)/buildroot-config
	@$(COMMON_CONFIG_ENV) $< $(CONFIG_CONFIG_IN)

nconfig: $(BUILD_DIR)/buildroot-config/nconf outputmakefile
	@mkdir -p $(BUILD_DIR)/buildroot-config
	@$(COMMON_CONFIG_ENV) $< $(CONFIG_CONFIG_IN)

config: $(BUILD_DIR)/buildroot-config/conf outputmakefile
	@mkdir -p $(BUILD_DIR)/buildroot-config
	@$(COMMON_CONFIG_ENV) $< $(CONFIG_CONFIG_IN)

oldconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile
	mkdir -p $(BUILD_DIR)/buildroot-config
	@$(COMMON_CONFIG_ENV) $< --oldconfig $(CONFIG_CONFIG_IN)

randconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile
	@mkdir -p $(BUILD_DIR)/buildroot-config
	@$(COMMON_CONFIG_ENV) $< --randconfig $(CONFIG_CONFIG_IN)

allyesconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile
	@mkdir -p $(BUILD_DIR)/buildroot-config
	@$(COMMON_CONFIG_ENV) $< --allyesconfig $(CONFIG_CONFIG_IN)

allnoconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile
	@mkdir -p $(BUILD_DIR)/buildroot-config
	@$(COMMON_CONFIG_ENV) $< --allnoconfig $(CONFIG_CONFIG_IN)

randpackageconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile
	@mkdir -p $(BUILD_DIR)/buildroot-config
	@grep -v BR2_PACKAGE_ $(BR2_CONFIG) > $(CONFIG_DIR)/.config.nopkg
	@grep '^config BR2_PACKAGE_' Config.in.legacy | \
		while read config pkg; do \
		echo "# $$pkg is not set" >> $(CONFIG_DIR)/.config.nopkg; done
	@$(COMMON_CONFIG_ENV) \
		KCONFIG_ALLCONFIG=$(CONFIG_DIR)/.config.nopkg \
		$< --randconfig $(CONFIG_CONFIG_IN)
	@rm -f $(CONFIG_DIR)/.config.nopkg

allyespackageconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile
	@mkdir -p $(BUILD_DIR)/buildroot-config
	@grep -v BR2_PACKAGE_ $(BR2_CONFIG) > $(CONFIG_DIR)/.config.nopkg
	@grep '^config BR2_PACKAGE_' Config.in.legacy | \
		while read config pkg; do \
		echo "# $$pkg is not set" >> $(CONFIG_DIR)/.config.nopkg; done
	@$(COMMON_CONFIG_ENV) \
		KCONFIG_ALLCONFIG=$(CONFIG_DIR)/.config.nopkg \
		$< --allyesconfig $(CONFIG_CONFIG_IN)
	@rm -f $(CONFIG_DIR)/.config.nopkg

allnopackageconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile
	@mkdir -p $(BUILD_DIR)/buildroot-config
	@grep -v BR2_PACKAGE_ $(BR2_CONFIG) > $(CONFIG_DIR)/.config.nopkg
	@$(COMMON_CONFIG_ENV) \
		KCONFIG_ALLCONFIG=$(CONFIG_DIR)/.config.nopkg \
		$< --allnoconfig $(CONFIG_CONFIG_IN)
	@rm -f $(CONFIG_DIR)/.config.nopkg

silentoldconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile
	@mkdir -p $(BUILD_DIR)/buildroot-config
	$(COMMON_CONFIG_ENV) $< --silentoldconfig $(CONFIG_CONFIG_IN)

olddefconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile
	@mkdir -p $(BUILD_DIR)/buildroot-config
	$(COMMON_CONFIG_ENV) $< --olddefconfig $(CONFIG_CONFIG_IN)

defconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile
	@mkdir -p $(BUILD_DIR)/buildroot-config
	@$(COMMON_CONFIG_ENV) $< --defconfig$(if $(DEFCONFIG),=$(DEFCONFIG)) $(CONFIG_CONFIG_IN)

%_defconfig: $(BUILD_DIR)/buildroot-config/conf $(TOPDIR)/configs/%_defconfig outputmakefile
	@mkdir -p $(BUILD_DIR)/buildroot-config
	@$(COMMON_CONFIG_ENV) $< --defconfig=$(TOPDIR)/configs/$@ $(CONFIG_CONFIG_IN)

%_defconfig: $(BUILD_DIR)/buildroot-config/conf $(BR2_EXTERNAL)/configs/%_defconfig outputmakefile
	@mkdir -p $(BUILD_DIR)/buildroot-config
	@$(COMMON_CONFIG_ENV) $< --defconfig=$(BR2_EXTERNAL)/configs/$@ $(CONFIG_CONFIG_IN)

savedefconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile
	@mkdir -p $(BUILD_DIR)/buildroot-config
	@$(COMMON_CONFIG_ENV) $< \
		--savedefconfig=$(if $(DEFCONFIG),$(DEFCONFIG),$(CONFIG_DIR)/defconfig) \
		$(CONFIG_CONFIG_IN)

# check if download URLs are outdated
source-check:
	$(MAKE1) DL_MODE=SOURCE_CHECK $(EXTRAMAKEARGS) source

.PHONY: defconfig savedefconfig

################################################################################
#
# Cleanup and misc junk
#
################################################################################

# outputmakefile generates a Makefile in the output directory, if using a
# separate output directory. This allows convenient use of make in the
# output directory.
outputmakefile:
ifeq ($(NEED_WRAPPER),y)
	$(Q)$(TOPDIR)/support/scripts/mkmakefile $(TOPDIR) $(O)
endif

# printvars prints all the variables currently defined in our Makefiles
printvars:
	@$(foreach V, \
		$(sort $(.VARIABLES)), \
		$(if $(filter-out environment% default automatic, \
				$(origin $V)), \
		$(info $V=$($V) ($(value $V)))))

clean:
	rm -rf $(TARGET_DIR) $(BINARIES_DIR) $(HOST_DIR) \
		$(BUILD_DIR) $(BASE_DIR)/staging \
		$(LEGAL_INFO_DIR)

distclean: clean
ifeq ($(DL_DIR),$(TOPDIR)/dl)
	rm -rf $(DL_DIR)
endif
ifeq ($(O),output)
	rm -rf $(O)
endif
	rm -rf $(BR2_CONFIG) $(CONFIG_DIR)/.config.old $(CONFIG_DIR)/.auto.deps

help:
	@echo 'Cleaning:'
	@echo '  clean                  - delete all files created by build'
	@echo '  distclean              - delete all non-source files (including .config)'
	@echo
	@echo 'Build:'
	@echo '  all                    - make world'
	@echo '  toolchain              - build toolchain'
	@echo '  <package>-rebuild      - force recompile <package>'
	@echo '  <package>-reconfigure  - force reconfigure <package>'
	@echo '  <package>-graph-depends    - generate graph of the dependency tree for package'
	@echo
	@echo 'Configuration:'
	@echo '  menuconfig             - interactive curses-based configurator'
	@echo '  nconfig                - interactive ncurses-based configurator'
	@echo '  xconfig                - interactive Qt-based configurator'
	@echo '  gconfig                - interactive GTK-based configurator'
	@echo '  oldconfig              - resolve any unresolved symbols in .config'
	@echo '  silentoldconfig        - Same as oldconfig, but quietly, additionally update deps'
	@echo '  olddefconfig           - Same as silentoldconfig but sets new symbols to their default value'
	@echo '  randconfig             - New config with random answer to all options'
	@echo '  defconfig              - New config with default answer to all options'
	@echo '                             BR2_DEFCONFIG, if set, is used as input'
	@echo '  savedefconfig          - Save current config as ./defconfig (minimal config)'
	@echo '  allyesconfig           - New config where all options are accepted with yes'
	@echo '  allnoconfig            - New config where all options are answered with no'
	@echo '  randpackageconfig      - New config with random answer to package options'
	@echo '  allyespackageconfig    - New config where pkg options are accepted with yes'
	@echo '  allnopackageconfig     - New config where package options are answered with no'
ifeq ($(BR2_PACKAGE_BUSYBOX),y)
	@echo '  busybox-menuconfig     - Run BusyBox menuconfig'
endif
ifeq ($(BR2_LINUX_KERNEL),y)
	@echo '  linux-menuconfig       - Run Linux kernel menuconfig'
	@echo '  linux-savedefconfig    - Run Linux kernel savedefconfig'
endif
ifeq ($(BR2_TOOLCHAIN_BUILDROOT),y)
	@echo '  uclibc-menuconfig      - Run uClibc menuconfig'
endif
ifeq ($(BR2_TARGET_BAREBOX),y)
	@echo '  barebox-menuconfig     - Run barebox menuconfig'
	@echo '  barebox-savedefconfig  - Run barebox savedefconfig'
endif
	@echo
	@echo 'Documentation:'
	@echo '  manual                 - build manual in all formats'
	@echo '  manual-html            - build manual in HTML'
	@echo '  manual-split-html      - build manual in split HTML'
	@echo '  manual-pdf             - build manual in PDF'
	@echo '  manual-text            - build manual in text'
	@echo '  manual-epub            - build manual in ePub'
	@echo '  graph-build            - generate graphs of the build times'
	@echo '  graph-depends          - generate graph of the dependency tree'
	@echo
	@echo 'Miscellaneous:'
	@echo '  source                 - download all sources needed for offline-build'
	@echo '  source-check           - check selected packages for valid download URLs'
	@echo '  external-deps          - list external packages used'
	@echo '  legal-info             - generate info about license compliance'
	@echo
	@echo '  make V=0|1             - 0 => quiet build (default), 1 => verbose build'
	@echo '  make O=dir             - Locate all output files in "dir", including .config'
	@echo
	@echo 'Built-in configs:'
	@$(foreach b, $(sort $(notdir $(wildcard $(TOPDIR)/configs/*_defconfig))), \
	  printf "  %-35s - Build for %s\\n" $(b) $(b:_defconfig=);)
ifneq ($(wildcard $(BR2_EXTERNAL)/configs/*_defconfig),)
	@echo
	@echo 'User-provided configs:'
	@$(foreach b, $(sort $(notdir $(wildcard $(BR2_EXTERNAL)/configs/*_defconfig))), \
	  printf "  %-35s - Build for %s\\n" $(b) $(b:_defconfig=);)
endif
	@echo
	@echo 'See docs/README, or generate the Buildroot manual for further details'
	@echo

release: OUT = buildroot-$(BR2_VERSION)

# Create release tarballs. We need to fiddle a bit to add the generated
# documentation to the git output
release:
	git archive --format=tar --prefix=$(OUT)/ HEAD > $(OUT).tar
	$(MAKE) O=$(OUT) manual-html manual-text manual-pdf
	tar rf $(OUT).tar $(OUT)
	gzip -9 -c < $(OUT).tar > $(OUT).tar.gz
	bzip2 -9 -c < $(OUT).tar > $(OUT).tar.bz2
	rm -rf $(OUT) $(OUT).tar

print-version:
	@echo $(BR2_VERSION_FULL)

include docs/manual/manual.mk

.PHONY: $(noconfig_targets)