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header.kmk@ 623

Last change on this file since 623 was 601, checked in by bird, 19 years ago
o Added rmdir as builtin and external command. o Made mkdir not modify the argument strings. o Made mkdir deal properly with DOS slashes on OS/2 and Windows.
Property svn:eol-style set to `native` Property svn:keywords set to `Author Date Id Revision`
File size: 16.2 KB

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1	# $Id: header.kmk 601 2006-11-26 00:19:19Z bird $
2	## @file
3	#
4	# kBuild - File included at top of makefile.
5	#
6	# Copyright (c) 2004-2005 knut st. osmundsen <bird-srcspam@anduin.net>
7	#
8	#
9	# This file is part of kBuild.
10	#
11	# kBuild is free software; you can redistribute it and/or modify
12	# it under the terms of the GNU General Public License as published by
13	# the Free Software Foundation; either version 2 of the License, or
14	# (at your option) any later version.
15	#
16	# kBuild is distributed in the hope that it will be useful,
17	# but WITHOUT ANY WARRANTY; without even the implied warranty of
18	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19	# GNU General Public License for more details.
20	#
21	# You should have received a copy of the GNU General Public License
22	# along with kBuild; if not, write to the Free Software
23	# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
24	#
25	#
26
27	ifndef __header_kmk__
28	# start-of-file-content
29
30	#
31	# default rule
32	#
33	all: all_recursive
34
35	#
36	# The FORCE rule.
37	#
38	FORCE:
39
40	#
41	# Try avoid inference rules.
42	#
43	.SUFFIXES:
44	SUFFIXES :=
45
46
47	#
48	# General purpose macros.
49	#
50
51	## get last word in a list.
52	# @returns last word in $1.
53	# @param $1 Word list.
54	lastword = $(word $(words $(1)), $(1))
55
56	##
57	# Newline character(s).
58	define NL
59
60
61	endef
62
63	##
64	# Tab character.
65	TAB := $(subst ., ,.)
66
67	##
68	# Space character.
69	SP := $(subst ., ,.)
70
71	##
72	# Checks if two strings are equal.
73	# @returns blank if equal
74	# @returns non-blank if not equal.
75	# @param $1 String 1.
76	# @param $2 String 2
77	STRCMP = $( todo )
78
79	#
80	# Set default build type.
81	#
82	ifndef BUILD_TYPE
83	ifdef BUILD_MODE
84	# BUILD_MODE is legacy from the OS/2 build system. :)
85	BUILD_TYPE := $(tolower $(BUILD_MODE))
86	else
87	BUILD_TYPE := release
88	endif
89	endif
90
91
92	#
93	# Assert build platform.
94	#
95	ifndef BUILD_PLATFORM
96	$(error kBuild: BUILD_PLATFORM is undefined!)
97	else
98	BUILD_PLATFORM := $(strip $(BUILD_PLATFORM))
99	ifneq ($(words $(BUILD_PLATFORM))$(filter-out darwin freebsd l4 linux nt os2 win win32 win64,$(BUILD_PLATFORM)),1)
100	# OS/2 (have uppercase legacy)
101	ifeq ($(BUILD_PLATFORM),OS2)
102	$(error kBuild: BUILD_PLATFORM must be all lowercase!)
103	endif
104	$(error kBuild: BUILD_PLATFORM value '$(BUILD_PLATFORM)' was not recognized!)
105	endif
106	endif
107
108	# Fill in defaults if needed.
109	ifndef BUILD_PLATFORM_ARCH
110	ifeq ($(filter-out win64,$(BUILD_PLATFORM)),)
111	BUILD_PLATFORM_ARCH := amd64
112	else
113	BUILD_PLATFORM_ARCH := x86
114	endif
115	endif
116	ifndef BUILD_PLATFORM_CPU
117	ifeq ($(filter-out amd64,$(BUILD_PLATFORM_ARCH)),)
118	BUILD_PLATFORM_CPU:= k8
119	else
120	BUILD_PLATFORM_CPU:= i586
121	endif
122	endif
123
124
125	#
126	# Assert target platform.
127	#
128	ifndef BUILD_TARGET
129	# not defined, set to the same as build platform
130	BUILD_TARGET := $(BUILD_PLATFORM)
131	else
132	BUILD_TARGET := $(strip $(BUILD_TARGET))
133	ifneq ($(words $(BUILD_TARGET))$(filter-out darwin freebsd l4 linux nt os2 win win32 win64,$(BUILD_TARGET)),1)
134	# OS/2 (have uppercase legacy)
135	ifeq ($(BUILD_TARGET),OS2)
136	$(error kBuild: BUILD_TARGET must be all lowercase!)
137	endif
138	$(error kBuild: BUILD_TARGET value '$(BUILD_TARGET)' was not recognized!)
139	endif
140	endif
141
142	# Fill in defaults if needed.
143	ifndef BUILD_TARGET_ARCH
144	BUILD_TARGET_ARCH := x86
145	endif
146	ifndef BUILD_TARGET_CPU
147	BUILD_TARGET_CPU := i586
148	endif
149
150	# Adjust the DEPTH definition first
151	ifeq ($(strip $(DEPTH)),)
152	DEPTH := .
153	endif
154
155	#
156	# Common definitions.
157	#
158	PATH_CURRENT := $(abspath $(CURDIR))
159	ifneq ($(strip $(SUB_DEPTH)),)
160	PATH_SUB_CURRENT := $(abspath $(PATH_CURRENT)/$(SUB_DEPTH))
161	else
162	PATH_SUB_CURRENT := $(PATH_CURRENT)
163	endif
164	PATH_ROOT := $(abspath $(PATH_CURRENT)/$(DEPTH))
165
166	# Subdirectory relative to the root.
167	ifneq ($(PATH_ROOT),$(PATH_CURRENT))
168	CURSUBDIR := $(patsubst $(PATH_ROOT)/%,%,$(PATH_SUB_CURRENT))
169	else
170	CURSUBDIR := .
171	endif
172
173	# Output directories.
174	ifndef PATH_OUT_BASE
175	PATH_OUT_BASE := $(PATH_ROOT)/out
176	endif
177	ifndef PATH_OUT
178	ifdef BUILD_TARGET_SUB # (BUILD_TARGET_SUB is not currently recognized by kBuild in any other places.)
179	PATH_OUT := $(PATH_OUT_BASE)/$(BUILD_TARGET).$(BUILD_TARGET_ARCH).$(BUILD_TARGET_SUB)/$(BUILD_TYPE)
180	else
181	PATH_OUT := $(PATH_OUT_BASE)/$(BUILD_TARGET).$(BUILD_TARGET_ARCH)/$(BUILD_TYPE)
182	endif
183	endif # !define PATH_OUT
184	PATH_OBJ = $(PATH_OUT)/obj
185	PATH_TARGET = $(PATH_OBJ)/$(CURSUBDIR)
186	PATH_INS = $(PATH_OUT)
187	PATH_BIN = $(PATH_INS)/bin
188	PATH_DLL = $(PATH_INS)/bin
189	PATH_SYS = $(PATH_INS)/bin
190	PATH_LIB = $(PATH_INS)/lib
191	PATH_DOC = $(PATH_INS)/doc
192
193	# Usually kBuild is external to the source tree.
194	ifndef PATH_KBUILD
195	PATH_KBUILD := $(PATH_ROOT)/kBuild
196	endif
197	PATH_KBUILD := $(abspath $(PATH_KBUILD))
198	# kBuild files which might be of interest.
199	FILE_KBUILD_HEADER := $(PATH_KBUILD)/header.kmk
200	FILE_KBUILD_CONFIG := $(PATH_KBUILD)/config.kmk
201	FILE_KBUILD_FOOTER := $(PATH_KBUILD)/footer.kmk
202
203	SUFF_DEP := .dep
204	MAKEFILE := $(firstword $(MAKEFILE_LIST))
205
206
207	#
208	# Check make version.
209	#
210	ifdef KMK_VERSION
211	ifneq ($(KBUILD_VERSION_MAJOR).$(KBUILD_VERSION_MINOR),0.1)
212	ifneq ($(KBUILD_VERSION_MAJOR),0)
213	$(warning kBuild: kmk major version mismatch, expected '0' found '$(KBUILD_VERSION_MAJOR)'!)
214	else
215	$(warning kBuild: kmk minor version mismatch, expected '1' found '$(KBUILD_VERSION_MINOR)'!)
216	endif
217	endif
218	else
219	# Vanilla GNU Make. Only supported for kBuild bootstrapping. Disable some features to make it work.
220	NO_COMPILE_CMDS_DEPS:= 1
221	NO_LINK_CMDS_DEPS := 1
222	sinclude $(PATH_KBUILD)/StampOutPredefines.kmk
223	ifndef IS_BOOTSTRAPPING_KBUILD_NOW
224	$(warning kBuild: Using vanilla GNU make isn't safe for anything but kBuild bootstrapping!)
225	endif
226	endif
227
228
229	#
230	# Build platform setup.
231	#
232	# OS/2
233	ifeq ($(BUILD_PLATFORM),os2)
234	EXEC_X86_WIN32 := innopec.exe
235	HOSTSUFF_EXE := .exe
236	endif
237
238	# Linux
239	ifeq ($(BUILD_PLATFORM),linux)
240	EXEC_X86_WIN32 := wine
241	HOSTSUFF_EXE :=
242	endif
243
244	# Win, Win32, Win64, NT.
245	ifeq ($(filter-out win32 win64 win nt,$(BUILD_PLATFORM)),)
246	EXEC_X86_WIN32 :=
247	HOSTSUFF_EXE := .exe
248	endif
249
250	# FreeBSD
251	ifeq ($(BUILD_PLATFORM),freebsd)
252	EXEC_X86_WIN32 := wine
253	HOSTSUFF_EXE :=
254	endif
255
256	# Darwin / Mac OS X
257	ifeq ($(BUILD_PLATFORM),darwin)
258	EXEC_X86_WIN32 := false
259	HOSTSUFF_EXE :=
260	endif
261
262	ifndef PATH_KBUILD_BIN
263	PATH_KBUILD_BIN := $(PATH_KBUILD)/bin/$(BUILD_PLATFORM_ARCH).$(BUILD_PLATFORM)
264	ifeq ($(wildcard $(PATH_KBUILD_BIN)/kmk_ash$(HOSTSUFF_EXE)),)
265	ifeq ($(BUILD_TARGET_ARCH),amd64)
266	PATH_KBUILD_BIN := $(PATH_KBUILD)/bin/x86.$(BUILD_PLATFORM)
267	endif
268	ifeq ($(wildcard $(PATH_KBUILD_BIN)/kmk_ash$(HOSTSUFF_EXE)),)
269	ifeq ($(filter-out win64 win nt ,$(BUILD_PLATFORM)),)
270	PATH_KBUILD_BIN := $(PATH_KBUILD)/bin/x86.win32
271	endif
272	endif
273	ifeq ($(wildcard $(PATH_KBUILD_BIN)/kmk_ash$(HOSTSUFF_EXE)),)
274	# give up
275	PATH_KBUILD_BIN := $(PATH_KBUILD)/bin/$(BUILD_PLATFORM_ARCH).$(BUILD_PLATFORM)
276	endif
277	endif
278	endif
279
280
281	#
282	# Build target setup.
283	#
284	ifeq ($(filter-out win32 win64 win nt os2,$(BUILD_TARGET)),)
285	SUFF_OBJ := .obj
286	SUFF_LIB := .lib
287	SUFF_DLL := .dll
288	SUFF_EXE := .exe
289	SUFF_SYS := .sys
290	SUFF_RES := .res
291	endif
292	ifeq ($(BUILD_TARGET),l4)
293	SUFF_OBJ := .o
294	SUFF_LIB := .a
295	SUFF_DLL := .s.so
296	SUFF_EXE :=
297	SUFF_SYS := .a
298	SUFF_RES :=
299	endif
300	ifeq ($(BUILD_TARGET),darwin)
301	SUFF_OBJ := .o
302	SUFF_LIB := .a
303	SUFF_DLL := .dylib
304	SUFF_EXE :=
305	SUFF_SYS := .a
306	SUFF_RES :=
307	endif
308	ifndef SUFF_OBJ
309	SUFF_OBJ := .o
310	SUFF_LIB := .a
311	SUFF_DLL := .so
312	SUFF_EXE :=
313	SUFF_SYS := .a
314	SUFF_RES :=
315	endif
316
317	#
318	# Standard kBuild tools.
319	#
320	ifeq ($(MAKE),kmk)
321	MAKE := $(PATH_KBUILD_BIN)/kmk$(HOSTSUFF_EXE)
322	endif
323
324	DEP_EXT := $(PATH_KBUILD_BIN)/kDep$(HOSTSUFF_EXE)
325	ifeq ($(filter kDep,$(KMK_BUILTIN)),kDep)
326	DEP := kmk_builtin_kDep
327	else
328	DEP := $(DEP_EXT)
329	endif
330
331	DEP_IDB_EXT := $(PATH_KBUILD_BIN)/kDepIDB$(HOSTSUFF_EXE)
332	ifeq ($(filter kDepPre,$(KMK_BUILTIN)),kDepIDB)
333	DEP_IDB := $(if kmk_builtin_kDepIDB
334	else
335	DEP_IDB := $(DEP_IDB_EXT)
336	endif
337
338	DEP_PRE_EXT := $(PATH_KBUILD_BIN)/kDepPre$(HOSTSUFF_EXE)
339	ifeq ($(filter kDepPre,$(KMK_BUILTIN)),kDepPre)
340	DEP_PRE := $(if kmk_builtin_kDepPre
341	else
342	DEP_PRE := $(DEP_PRE_EXT)
343	endif
344
345	APPEND_EXT := $(PATH_KBUILD_BIN)/kmk_append$(HOSTSUFF_EXE)
346	ifeq ($(filter append,$(KMK_BUILTIN)),append)
347	APPEND := kmk_builtin_append
348	else
349	APPEND := $(APPEND_EXT)
350	endif
351
352	CAT_EXT := $(PATH_KBUILD_BIN)/kmk_cat$(HOSTSUFF_EXE)
353	ifeq ($(filter cat,$(KMK_BUILTIN)),cat)
354	CAT := kmk_builtin_cat
355	else
356	CAT := $(CAT_EXT)
357	endif
358
359	CP_EXT := $(PATH_KBUILD_BIN)/kmk_cp$(HOSTSUFF_EXE)
360	ifeq ($(filter cp,$(KMK_BUILTIN)),cp)
361	CP := kmk_builtin_cp
362	else
363	CP := $(CP_EXT)
364	endif
365
366	ECHO_EXT := $(PATH_KBUILD_BIN)/kmk_echo$(HOSTSUFF_EXE)
367	ifeq ($(filter echo,$(KMK_BUILTIN)),echo)
368	ECHO := kmk_builtin_echo
369	else
370	ECHO := $(ECHO_EXT)
371	endif
372
373	INSTALL_EXT := $(PATH_KBUILD_BIN)/kmk_install$(HOSTSUFF_EXE)
374	ifeq ($(filter install,$(KMK_BUILTIN)),install)
375	INSTALL := kmk_builtin_install
376	else
377	INSTALL := $(INSTALL_EXT)
378	endif
379
380	LN_EXT := $(PATH_KBUILD_BIN)/kmk_ln$(HOSTSUFF_EXE)
381	ifeq ($(filter ln,$(KMK_BUILTIN)),ln)
382	LN := kmk_builtin_ln
383	else
384	LN := $(LN_EXT)
385	endif
386
387	MKDIR_EXT := $(PATH_KBUILD_BIN)/kmk_mkdir$(HOSTSUFF_EXE)
388	ifeq ($(filter mkdir,$(KMK_BUILTIN)),mkdir)
389	MKDIR := kmk_builtin_mkdir
390	else
391	MKDIR := $(MKDIR_EXT)
392	endif
393
394	MV_EXT := $(PATH_KBUILD_BIN)/kmk_mv$(HOSTSUFF_EXE)
395	ifeq ($(filter mv,$(KMK_BUILTIN)),mv)
396	MV := kmk_builtin_mv
397	else
398	MV := $(MV_EXT)
399	endif
400
401	RM_EXT := $(PATH_KBUILD_BIN)/kmk_rm$(HOSTSUFF_EXE)
402	ifeq ($(filter rm,$(KMK_BUILTIN)),rm)
403	RM := kmk_builtin_rm
404	else
405	RM := $(RM_EXT)
406	endif
407
408	RMDIR_EXT := $(PATH_KBUILD_BIN)/kmk_rmdir$(HOSTSUFF_EXE)
409	ifeq ($(filter rmdir,$(KMK_BUILTIN)),rmdir)
410	RMDIR := kmk_builtin_rmdir
411	else
412	RMDIR := $(RMDIR_EXT)
413	endif
414
415	SED_EXT := $(PATH_KBUILD_BIN)/kmk_sed$(HOSTSUFF_EXE)
416	ifeq ($(filter sed,$(KMK_BUILTIN)),sed)
417	SED := kmk_builtin_sed
418	else
419	SED := $(SED_EXT)
420	endif
421
422	# Our default shell is the Almquist shell from *BSD.
423	ASH := $(PATH_KBUILD_BIN)/kmk_ash$(HOSTSUFF_EXE)
424	MAKESHELL := $(ASH)
425	SHELL := $(ASH)
426	export SHELL MAKESHELL
427
428	# Symlinking is problematic on some platforms...
429	LN_SYMLINK := $(LN) -s
430
431
432
433	#
434	# Message macros.
435	#
436
437	ifndef BUILD_QUIET
438	ifdef BUILD_DEBUG
439	BUILD_VERBOSE := 9
440	endif
441	MSG_L1 = @$(ECHO) "kBuild: $1"
442	ifdef BUILD_VERBOSE
443	MSG_L2 = @$(ECHO) "kBuild: $1"
444	QUIET :=
445	else
446	QUIET := @
447	MSG_L2 =
448	endif
449	ifdef BUILD_DEBUG
450	MSG_L3 = @$(ECHO) "kBuild: $1"
451	else
452	MSG_L3 =
453	endif
454	else
455	QUIET :=
456	MSG_L1 =
457	MSG_L2 =
458	MSG_L3 =
459	endif
460
461	## ABSPATH - make paths absolute.
462	# This implementation is clumsy and doesn't resolve '..' and '.' components.
463	#
464	# @param $1 The paths to make absolute.
465	ABSPATH = $(abspath $(1))
466
467	## DIRDEP - make create directory dependencies.
468	#
469	# @param $1 The paths to the directories which must be created.
470	DIRDEP = $(foreach path,$(patsubst %/,%,$(1)),$(path)/)
471
472
473	## Cygwin kludge.
474	# This converts /cygdrive/x/% to x:%.
475	#
476	# @param $1 The paths to make native.
477	# @remark This macro is pretty much obsolete since we don't use cygwin base make.
478	ifneq ($(patsubst /cygdrive/%,%,$(CURDIR)),$(CURDIR))
479	CYGPATHMIXED = $(foreach path,$(1)\
480	,$(if $(patsubst /cygdrive/%,,$(path)),$(path),$(patsubst $(strip $(firstword $(subst /, ,$(patsubst /cygdrive/%,%,$(path)))))/%,$(strip $(firstword $(subst /, ,$(patsubst /cygdrive/%,%,$(path))))):/%,$(patsubst /cygdrive/%,%,$(path)))))
481	else
482	CYGPATHMIXED = $(1)
483	endif
484
485	#
486	# Initialize some of the globals which the Config.kmk and
487	# others can add stuff to if they like for processing in the footer.
488	#
489
490	## ALL_TARGET
491	# This is the list of all targets.
492	ALL_TARGETS :=
493
494	## TEMPLATE_PATHS
495	# List a paths (separated by space) where templates can be found.
496	TEMPLATE_PATHS :=
497
498	## TOOL_PATHS
499	# List of paths (separated by space) where tools can be found.
500	TOOL_PATHS :=
501
502	## SDK_PATHS
503	# List of paths (separated by space) where SDKs can be found.
504	SDK_PATHS :=
505
506	## Proritized list of the default makefile when walking subdirectories.
507	# The user can overload this list.
508	DEFAULT_MAKEFILE := Makefile.kmk makefile.kmk Makefile makefile
509
510	## PROPS_SINGLE
511	# The list of non-accumulative target properties.
512	# A Config.kmk file can add it's own properties to this list and kBuild
513	# will do the necessary inheritance from templates to targets.
514	PROPS_SINGLE := TOOL ARTOOL CTOOL CXXTOOL ASTOOL LDTOOL INST NOINST
515
516	## PROPS_DEFERRED
517	# This list of non-accumulative target properties which are functions,
518	# and thus should not be expanded until the very last moment.
519	PROPS_DEFERRED := INSTFUN INSTALLER
520
521	## PROPS_ACCUMULATE
522	# The list of accumulative target properties.
523	# A Config.kmk file can add it's own properties to this list and kBuild
524	# will do the necessary inheritance from templates to targets.
525	PROPS_ACCUMULATE := \
526	SDKS DEFS DEPS INCS SOURCES \
527	COPTS CFLAGS CDEFS CINCS CXXOPTS CXXFLAGS CXXDEFS CXXINCS \
528	ASOPTS ASFLAGS ASDEFS ASINCS \
529	LDFLAGS LIBS LIBPATH \
530	BLD_TYPE BLD_TRG BLD_TRG_ARCH BLD_TRG_CPU \
531	SYSSUFF EXESUFF DLLSUFF LIBSUFF ARLIBSUFF \
532
533
534	## PROPS_TOOLS
535	# This is a subset of the other PROPS
536	PROPS_TOOLS := TOOL CTOOL CXXTOOL ASTOOL ARTOOL LDTOOL
537
538
539	#
540	# Pass configuration.
541	#
542	# The PASS_<passname>_trgs variable is listing the targets.
543	# The PASS_<passname>_vars variable is listing the target variables.
544	# The PASS_<passname>_pass variable is the lowercased passname.
545	#
546
547	## PASS: bldprogs
548	# This pass builds targets which are required for building the rest.
549	PASS_BLDPROGS := Build Programs
550	PASS_BLDPROGS_trgs :=
551	PASS_BLDPROGS_vars := _BLDPROGS
552	PASS_BLDPROGS_pass := bldprogs
553
554	## PASS: libraries
555	# This pass builds library targets.
556	PASS_LIBRARIES := Libraries
557	PASS_LIBRARIES_trgs :=
558	PASS_LIBRARIES_vars := _LIBS _IMPORT_LIBS _OTHER_LIBRARIES
559	PASS_LIBRARIES_pass := libraries
560
561	## PASS: binaries
562	# This pass builds dll targets.
563	PASS_DLLS := DLLs
564	PASS_DLLS_trgs :=
565	PASS_DLLS_vars := _DLLS _OTHER_DLLS
566	PASS_DLLS_pass := dlls
567
568	## PASS: binaries
569	# This pass builds binary targets, i.e. programs, system modules and stuff.
570	PASS_BINARIES := Programs
571	PASS_BINARIES_trgs :=
572	PASS_BINARIES_vars := _PROGRAMS _SYSMODS _OTHER_BINARIES
573	PASS_BINARIES_pass := binaries
574
575	## PASS: others
576	# This pass builds other targets.
577	PASS_OTHERS := Other Stuff
578	PASS_OTHERS_trgs :=
579	PASS_OTHERS_vars := _OTHERS
580	PASS_OTHERS_pass := others
581
582	## PASS: install
583	# This pass installs the built entities to a sandbox area.
584	PASS_INSTALLS := Install
585	PASS_INSTALLS_trgs :=
586	PASS_INSTALLS_vars := _INSTALLS_DIRS _INSTALLS
587	PASS_INSTALLS_pass := installs
588
589	## PASS: packing
590	# This pass processes custom packing rules.
591	PASS_PACKING := Packing
592	PASS_PACKING_trgs :=
593	PASS_PACKING_vars := _PACKING
594	PASS_PACKING_pass := packing
595	#alias
596	packing: pass_packing
597
598	## PASS: clean
599	# This pass removes all generated files.
600	PASS_CLEAN := Clean
601	PASS_CLEAN_trgs := do-clean
602	PASS_CLEAN_vars :=
603	PASS_CLEAN_pass := clean
604	# alias
605	clean: pass_clean
606
607	## PASS: nothing
608	# This pass just walks the tree.
609	PASS_NOTHING := Nothing
610	PASS_NOTHING_trgs := do-nothing
611	PASS_NOTHING_vars :=
612	PASS_NOTHING_pass := nothing
613	# alias
614	nothing: pass_nothing
615
616	## DEFAULT_PASSES
617	# The default passes and their order.
618	DEFAULT_PASSES := BLDPROGS LIBRARIES DLLS BINARIES OTHERS INSTALLS
619
620	## PASSES
621	# The passes that should be defined. This must include
622	# all passes mentioned by DEFAULT_PASSES.
623	PASSES := $(DEFAULT_PASSES) NOTHING CLEAN
624
625
626	#
627	# This is how we find the closest config.kmk.
628	# It's a little hacky but I think it works fine.
629	#
630	_CFGDIR := .
631	_CFGFILES := ./Config.kmk ./config.kmk
632	define def_include_config
633	$(eval _CFGDIR := $(_CFGDIR)/$(dir))
634	_CFGFILES += $(_CFGDIR)/Config.kmk $(_CFGDIR)/config.kmk
635	endef
636	# walk down the _RELATIVE_ path specified by DEPTH.
637	$(foreach dir,$(subst /, ,$(DEPTH)), $(eval $(def_include_config)) )
638	# add the default config file.
639	_CFGFILE := $(firstword $(wildcard $(_CFGFILES) $(FILE_KBUILD_CONFIG)))
640	_CFGFILES :=
641	_CFGDIR :=
642	ifeq ($(_CFGFILE),)
643	$(error kBuild: no Config.kmk file found! Check the DEPTH: DEPTH='$(DEPTH)' PATH_CURRENT='$(PATH_CURRENT)')
644	endif
645
646	# Include the config.kmk we found file (or the default one).
647	include $(_CFGFILE)
648
649
650	# end-of-file-content
651	__header_kmk__ := 1
652	endif # __header_kmk__
653

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