path: root/kBuild/header.kmk

# $Id: header.kmk 3579 2023-01-05 01:53:41Z bird $
## @file
# kBuild - File included at top of a makefile.
#

#
# Copyright (c) 2004-2017 knut st. osmundsen <bird-kBuild-spam-xviiv@anduin.net>
#
# This file is part of kBuild.
#
# kBuild 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.
#
# kBuild 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 kBuild; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
#
#
# As a special exception you are granted permission to include this file, via
# the kmk include directive, as you wish without this in itself causing the
# resulting makefile, program or whatever to be covered by the GPL license.
# This exception does not however invalidate any other reasons why the makefile,
# program, whatever should not be covered the GPL.
#
#

ifndef __header_kmk__
# start-of-file-content
ifdef KBUILD_PROFILE_SELF
 _KBUILD_TS_HEADER_START := $(nanots ) # just a dummy warm up query
 $(info prof: since start - since previous -- event description)
 ifeq ($(KBUILD_PROFILE_SELF),2)
  $(info stat: $(make-stats ))
 endif
 _KBUILD_TS_HEADER_START := $(nanots )
 _KBUILD_TS_PREV := $(_KBUILD_TS_HEADER_START)

 _KBUILD_FMT_ELAPSED_EX = $(int-div $(int-add $(int-sub $1, $2),500000),1000000)ms
 _KBUILD_FMT_ELAPSED = $(call _KBUILD_FMT_ELAPSED_EX,$(_KBUILD_TS_NOW),$1)

define def_profile_self
 _KBUILD_TS_NOW := $(nanots )
 $(info prof: $(call _KBUILD_FMT_ELAPSED,$(_KBUILD_TS_HEADER_START)) - $(call _KBUILD_FMT_ELAPSED, $(_KBUILD_TS_PREV)) -- $(strip $1))
 ifeq ($(KBUILD_PROFILE_SELF),2)
  $(info stat: $(make-stats ))
 endif
 _KBUILD_TS_PREV := $(_KBUILD_TS_NOW)
endef

endif


#
# Check make version before we do anything else.
#
ifndef KMK_VERSION
 $(error kBuild: The kmk default variable KMK_VERSION isn't defined! Make sure you are using 'kmk' and not 'make', 'gmake', 'kmk_gmake', 'dmake' or any other make program)
endif
ifneq ($(KBUILD_VERSION_MAJOR).$(KBUILD_VERSION_MINOR),0.1)
 ifneq ($(KBUILD_VERSION_MAJOR),0)
  $(warning kBuild: kmk major version mismatch! Expected '0' but found '$(KBUILD_VERSION_MAJOR)'!)
 else
  $(warning kBuild: kmk minor version mismatch! Expected '1' but found '$(KBUILD_VERSION_MINOR)'!)
 endif
else
 if $(KBUILD_VERSION_PATCH) < 999
  $(error kBuild: kmk version mismatch! Expected 0.1.999 or later. Actual version is $(KBUILD_VERSION).)
 endif
endif

#
# The revision in which this file was last modified.
# This can be useful when using development versions of kBuild.
#
KMK_REVISION := $(patsubst %:,,  $Rev: 3579 $  )


#
# Define the default goal.
#
.PHONY: all all_recursive
all: all_recursive

#
# The phony FORCE target.
#
.PHONY: FORCE
FORCE:


#
# Enable delete on error and second expansion of prerequisites and targets.
#
.DELETE_ON_ERROR:

.SECONDEXPANSION:

.SECONDTARGETEXPANSION:


#
# General purpose macros.
#

##
# Newline character(s).
define NL


endef

##
# Tab character.
TAB := $(subst .,	,.)

##
# Newline + tab characters (for generating commands).
NLTAB = $(NL)$(TAB)

##
# Space character.
SP := $(subst ., ,.)

##
# Hash character.
define HASH
#
endef

##
# Colon character.
COLON := :

##
# Semicolon character.
SEMICOLON := ;

##
# Comma character.
COMMA := ,

##
# Dot character.
DOT := .

##
# Dollar character.
DOLLAR := $$

##
# Equal character.
EQUAL := =

##
# Percent character.
PERCENT := %

##
# Single quote character.
SQUOTE := '

##
# Double quote character.
DQUOTE := "

##
# Opening parenthesis.
OPENPAR := (

##
# Closing parenthesis.
CLOSEPAR := )


#
# The list of standard build types in kBuild.
#
# This list can be extended in Config.kmk and it's possible to extend
# (inherit) another build type.
#
KBUILD_BLD_TYPES := release profile debug


#
# The OSes, Architectures and CPUs that kBuild recognizes.
#
# When kBuild is ported to a new OS or architecture a unique keyword needs
# to be assigned to it and added here. This strictness is required because
# this keyword namespace is shared between OSes, architectures, cpus and
# build types. (PORTME)
#
KBUILD_OSES      := darwin dos dragonfly freebsd gnuhurd gnukfbsd gnuknbsd haiku l4 linux netbsd nt openbsd os2 solaris win os-agnostic
KBUILD_ARCHES    := x86 amd64 noarch alpha arm32 arm64 hppa32 hppa64 ia64 m68k mips32 mips64 ppc32 ppc64 riscv32 riscv64 s390 s390x sh32 sh64 sparc32 sparc64 x32
KBUILD_ARCHES_64 := amd64 alpha arm64 hppa64 ia64 mips64 ppc64 riscv64 s390x sh64 sparc64 x32
KBUILD_ARCHES_32 := x86 arm32 hppa32 m68k mips32 ppc32 riscv32 s390 sh32 sparc32



#
# Mapping of kBuild OS + ARCH to GNU system type wildcards.
# For use with the foreach/append/prepend and wildcard functions.
#
KBUILD_OSARCH_2_GNU_SYSTEM_TYPES.darwin.x86      = i?86-apple-darwin*
KBUILD_OSARCH_2_GNU_SYSTEM_TYPES.darwin.amd64    = x86_64-apple-darwin* amd64-apple-darwin*
KBUILD_OSARCH_2_GNU_SYSTEM_TYPES.freebsd.x86     = i?86-*freebsd*
KBUILD_OSARCH_2_GNU_SYSTEM_TYPES.freebsd.amd64   = x86_64-*freebsd* amd64-*freebsd*
KBUILD_OSARCH_2_GNU_SYSTEM_TYPES.linux.x86       = i?86-*linux-gnu
KBUILD_OSARCH_2_GNU_SYSTEM_TYPES.linux.amd64     = x86_64-*linux-gnu amd64-*linux-gnu
KBUILD_OSARCH_2_GNU_SYSTEM_TYPES.netbsd.x86      = i?86-*netbsd*
KBUILD_OSARCH_2_GNU_SYSTEM_TYPES.netbsd.amd64    = x86_64-*netbsd* amd64-*netbsd*
KBUILD_OSARCH_2_GNU_SYSTEM_TYPES.os2.x86         = i?86-*os2*
KBUILD_OSARCH_2_GNU_SYSTEM_TYPES.solaris.x86     = i?86-*solaris2*
KBUILD_OSARCH_2_GNU_SYSTEM_TYPES.solaris.amd64   = amd64-*solaris2* x86_64-*solaris2*
KBUILD_OSARCH_2_GNU_SYSTEM_TYPES.solaris.sparc32 = sparc-*solaris2*
KBUILD_OSARCH_2_GNU_SYSTEM_TYPES.solaris.sparc64 = sparc64-*solaris2* sparcv9-*solaris2*
KBUILD_OSARCH_2_GNU_SYSTEM_TYPES.win.x86         = i?86-*mingw32* i?86-*msys* i?86-*cygwin*
KBUILD_OSARCH_2_GNU_SYSTEM_TYPES.win.amd64       = x86_64-*mingw64* amd64-*mingw64* x86_64-*msys* amd64-*msys* x86_64-*cygwin* amd64-*cygwin*


#
# Set default build type.
#
ifndef KBUILD_TYPE
 ifdef BUILD_TYPE
  KBUILD_TYPE := $(BUILD_TYPE)
 endif
else ifdef BUILD_TYPE
 ifneq ($(KBUILD_TYPE),$(BUILD_TYPE))
  ifeq ($(origin KBUILD_TYPE):$(origin BUILD_TYPE),environment:command line)
   $(warning kBuild: Please use KBUILD_TYPE instead of BUILD_TYPE on the command line!)
   KBUILD_TYPE := $(BUILD_TYPE)
  else ifneq ($(origin KBUILD_TYPE):$(origin BUILD_TYPE),command line:environment)
   $(error kBuild: KBUILD_TYPE (command line) and BUILD_TYPE (env) disagree.)
  endif
 endif
endif
override BUILD_TYPE = $(KBUILD_TYPE)

ifndef KBUILD_TYPE
 KBUILD_TYPE := release
else
 if1of ($(KBUILD_TYPE), $(KBUILD_OSES) $(KBUILD_ARCHES))
  $(error kBuild: The KBUILD_TYPE value '$(KBUILD_TYPE)' is an OS or architecture!)
 endif
 ifneq (.$(words $(KBUILD_TYPE)).$(KBUILD_TYPE).,.1.$(strip $(KBUILD_TYPE)).)
  $(error kBuild: The KBUILD_TYPE value '$(KBUILD_TYPE)' contains spaces/tabs!)
 endif
endif


#
# Assert valid build platform variables.
#
# All these are set by kmk so they shouldn't be any trouble
# unless the user starts messing about with environment variables.
#
ifneq (.$(words $(KBUILD_HOST)).$(KBUILD_HOST).,.1.$(strip $(KBUILD_HOST)).)
 $(error kBuild: The KBUILD_HOST value '$(KBUILD_HOST)' contains spaces/tabs!)
endif
ifneq ($(words $(filter $(KBUILD_HOST),$(KBUILD_OSES))),1)
 $(error kBuild: KBUILD_HOST value '$(KBUILD_HOST)' is not recognized (valid: $(KBUILD_OSES)))
endif

ifneq (.$(words $(KBUILD_HOST_ARCH)).$(KBUILD_HOST_ARCH).,.1.$(strip $(KBUILD_HOST_ARCH)).)
 $(error kBuild: The KBUILD_HOST_ARCH value '$(KBUILD_HOST_ARCH)' contains spaces/tabs!)
endif
ifneq ($(words $(filter $(KBUILD_HOST_ARCH),$(KBUILD_ARCHES))),1)
 $(error kBuild: KBUILD_HOST_ARCH value '$(KBUILD_HOST_ARCH)' is not recognized (valid: $(KBUILD_ARCHES)))
endif

ifeq ($(strip $(KBUILD_HOST_CPU)),)
 KBUILD_HOST_CPU := blend
else
 ifneq (.$(words $(KBUILD_HOST_CPU)).$(KBUILD_HOST_CPU).,.1.$(strip $(KBUILD_HOST_CPU)).)
  $(error kBuild: The KBUILD_HOST_CPU value '$(KBUILD_HOST_CPU)' contains spaces/tabs!)
 endif
 if1of ($(KBUILD_HOST_CPU), $(KBUILD_OSES) $(KBUILD_ARCHES))
  $(error kBuild: The KBUILD_HOST_CPU value '$(KBUILD_HOST_CPU)' was found in the OS or architecture keywords!)
 endif
 ifeq ($(KBUILD_HOST_CPU),$(KBUILD_TYPE))
  $(error kBuild: The KBUILD_HOST_CPU value '$(KBUILD_HOST_CPU)' is the same as the KBUILD_TYPE!)
 endif
endif


#
# Deal with target platform legacy.
#
ifndef KBUILD_TARGET
 ifdef BUILD_TARGET
  KBUILD_TARGET := $(BUILD_TARGET)
 endif
else ifdef BUILD_TARGET
 ifneq ($(KBUILD_TARGET),$(BUILD_TARGET))
  ifeq ($(origin KBUILD_TARGET):$(origin BUILD_TARGET),environment:command line)
   $(warning kBuild: Please use KBUILD_TARGET instead of BUILD_TARGET on the command line!)
   KBUILD_TARGET := $(BUILD_TARGET)
  else ifneq ($(origin KBUILD_TARGET):$(origin BUILD_TARGET),command line:environment)
   $(error kBuild: KBUILD_TARGET and BUILD_TARGET disagree)
  endif
 endif
endif
override BUILD_TARGET = $(KBUILD_TARGET)

ifndef KBUILD_TARGET_ARCH
 ifdef BUILD_TARGET_ARCH
  KBUILD_TARGET_ARCH := $(BUILD_TARGET_ARCH)
 endif
else ifdef BUILD_TARGET_ARCH
 ifneq ($(KBUILD_TARGET_ARCH),$(BUILD_TARGET_ARCH))
  ifeq ($(origin KBUILD_TARGET_ARCH):$(origin BUILD_TARGET_ARCH),environment:command line)
   $(warning kBuild: Please use KBUILD_TARGET_ARCH instead of BUILD_TARGET_ARCH on the command line!)
   KBUILD_TARGET_ARCH := $(BUILD_TARGET_ARCH)
  else ifneq ($(origin KBUILD_TARGET_ARCH):$(origin BUILD_TARGET_ARCH),command line:environment)
   $(error kBuild: KBUILD_TARGET_ARCH and BUILD_TARGET_ARCH disagree)
  endif
 endif
endif
override BUILD_TARGET_ARCH = $(KBUILD_TARGET_ARCH)

ifndef KBUILD_TARGET_CPU
 ifdef BUILD_TARGET_CPU
  KBUILD_TARGET_CPU := $(BUILD_TARGET_CPU)
 endif
else ifdef BUILD_TARGET_CPU
 ifneq ($(KBUILD_TARGET_CPU),$(BUILD_TARGET_CPU))
  ifeq ($(origin KBUILD_TARGET_CPU):$(origin BUILD_TARGET_CPU),environment:command line)
   $(warning kBuild: Please use KBUILD_TARGET_CPU instead of BUILD_TARGET_CPU on the command line!)
   KBUILD_TARGET_CPU := $(BUILD_TARGET_CPU)
  else ifneq ($(origin KBUILD_TARGET_CPU):$(origin BUILD_TARGET_CPU),command line:environment)
   $(error kBuild: KBUILD_TARGET_CPU and BUILD_TARGET_CPU disagree)
  endif
 endif
endif
override BUILD_TARGET_CPU = $(KBUILD_TARGET_CPU)


#
# Assert or set default target platform.
# When not defined use the corresponding KBUILD_HOST value.
#
ifndef KBUILD_TARGET
 KBUILD_TARGET := $(KBUILD_HOST)
else
 ifneq (.$(words $(KBUILD_TARGET)).$(KBUILD_TARGET).,.1.$(strip $(KBUILD_TARGET)).)
  $(error kBuild: The KBUILD_TARGET value '$(KBUILD_TARGET)' contains spaces/tabs!)
 endif
 ifneq ($(words $(filter $(KBUILD_TARGET),$(KBUILD_OSES))),1)
  $(error kBuild: KBUILD_TARGET value '$(KBUILD_TARGET)' is not recognized (valid: $(KBUILD_OSES)))
 endif
endif

ifndef KBUILD_TARGET_ARCH
 KBUILD_TARGET_ARCH := $(KBUILD_HOST_ARCH)
else
 ifneq (.$(words $(KBUILD_TARGET_ARCH)).$(KBUILD_TARGET_ARCH).,.1.$(strip $(KBUILD_TARGET_ARCH)).)
  $(error kBuild: The KBUILD_TARGET_ARCH value '$(KBUILD_TARGET_ARCH)' contains spaces/tabs!)
 endif
 ifneq ($(words $(filter $(KBUILD_TARGET_ARCH),$(KBUILD_ARCHES))),1)
  $(error kBuild: KBUILD_TARGET_ARCH value '$(KBUILD_TARGET_ARCH)' is not recognized (valid: $(KBUILD_ARCHES)))
 endif
endif

ifndef KBUILD_TARGET_CPU
 KBUILD_TARGET_CPU := $(KBUILD_HOST_CPU)
else ifeq ($(strip $(KBUILD_TARGET_CPU)),)
 ifeq ($(KBUILD_TARGET_ARCH),$(KBUILD_HOST_ARCH))
  KBUILD_TARGET_CPU := $(KBUILD_HOST_CPU)
 else
  KBUILD_TARGET_CPU := blend
 endif
else
 ifneq (.$(words $(KBUILD_TARGET_CPU)).$(KBUILD_TARGET_CPU).,.1.$(strip $(KBUILD_TARGET_CPU)).)
  $(error kBuild: The KBUILD_TARGET_CPU value '$(KBUILD_TARGET_CPU)' contains spaces/tabs!)
 endif
 if1of ($(KBUILD_TARGET_CPU), $(KBUILD_OSES) $(KBUILD_ARCHES))
  $(error kBuild: The KBUILD_TARGET_CPU value was found in the OS or architecture keywords!)
 endif
 ifeq ($(KBUILD_TARGET_CPU),$(KBUILD_TYPE))
  $(error kBuild: The KBUILD_TARGET_CPU value '$(KBUILD_TARGET_CPU)' is the same as the KBUILD_TYPE!)
 endif
endif

# Short hand for $(KBUILD_TARGET).$(KBUILD_TARGET_ARCH).
KBUILD_TARGET_DOT_ARCH = $(KBUILD_TARGET).$(KBUILD_TARGET_ARCH)
KBUILD_HOST_DOT_ARCH   = $(KBUILD_HOST).$(KBUILD_TARGET_ARCH)


#
# Feature indicators.
#

## File quoting functions.
if1of (quote, $(KMK_FEATURES))
 KMK_WITH_QUOTING := 1
endif

## Version sorting and comparing.
if1of (versort, $(KMK_FEATURES))
 KMK_WITH_VERSION_COMPARE := 1
endif


#
# Paths and stuff.
#

# Adjust DEPTH first.
DEPTH := $(strip $(DEPTH))
ifeq ($(DEPTH),)
 DEPTH := .
endif

## PATH_CURRENT is the current directory (getcwd).
PATH_CURRENT        := $(abspath $(CURDIR))
## PATH_SUB_CURRENT points to current directory of the current makefile.
# Meaning that it will change value as we enter and exit sub-makefiles.
PATH_SUB_CURRENT    := $(PATH_CURRENT)
## PATH_ROOT points to the project root directory.
PATH_ROOT           := $(abspath $(PATH_CURRENT)/$(DEPTH))
## PATH_SUB_ROOT points to the directory of the top-level makefile.
ifneq ($(strip $(SUB_DEPTH)),)
 SUB_DEPTH          := $(strip $(SUB_DEPTH))
 PATH_SUB_ROOT      := $(abspath $(PATH_CURRENT)/$(SUB_DEPTH))
else
 PATH_SUB_ROOT      := $(PATH_CURRENT)
endif

## CURSUBDIR is PATH_SUB_ROOT described relative to PATH_ROOT.
# This variable is used to determin where the object files and other output goes.
ifneq ($(PATH_ROOT),$(PATH_SUB_ROOT))
 CURSUBDIR          := $(patsubst $(PATH_ROOT)/%,%,$(PATH_SUB_ROOT))
else
 CURSUBDIR          := .
endif

# Install directory layout.  Relative to PATH_INS.
KBUILD_INST_PATHS   := BIN DLL SYS LIB DOC DEBUG SBIN LIBEXEC SHARE
INST_BIN             = bin/
if1of ($(KBUILD_TARGET), win)
INST_DLL             = bin/
else
INST_DLL             = lib/
endif
if1of ($(KBUILD_TARGET), os2 win)
INST_SYS             = drivers/
else
INST_SYS             = kernel/
endif
INST_LIB             = lib/
INST_DOC             = share/doc/
INST_DEBUG           = debug/
INST_SBIN            = sbin/
INST_LIBEXEC         = libexec/
INST_SHARE           = share/

# Staging directory layout. Relative to PATH_STAGE.
STAGE_BIN            = $(INST_BIN)
STAGE_DLL            = $(INST_DLL)
STAGE_SYS            = $(INST_SYS)
STAGE_LIB            = $(INST_LIB)
STAGE_DOC            = $(INST_DOC)
STAGE_DEBUG          = $(INST_DEBUG)
STAGE_SBIN           = $(INST_SBIN)
STAGE_LIBEXEC        = $(INST_LIBEXEC)
STAGE_SHARE          = $(INST_SHARE)

# Install and staging directory paths.
$(foreach path, $(KBUILD_INST_PATHS), \
	$(eval PATH_STAGE_$(path) = $$(patsubst %/,%,$$(PATH_STAGE)/$$(STAGE_$(path)))) \
	$(eval PATH_INST_$(path) = $$(patsubst %/,%,$$(PATH_INS)/$$(INST_$(path)))) \
)

# Output directories.
ifndef PATH_OUT_BASE
 PATH_OUT_BASE      := $(PATH_ROOT)/out
endif
ifndef PATH_OUT
 ifdef BUILD_TARGET_SUB # (BUILD_TARGET_SUB is not currently recognized by kBuild in any other places - obsolete)
  PATH_OUT           = $(PATH_OUT_BASE)/$(KBUILD_TARGET).$(KBUILD_TARGET_ARCH).$(BUILD_TARGET_SUB)/$(KBUILD_TYPE)
 else
  PATH_OUT           = $(PATH_OUT_BASE)/$(KBUILD_TARGET).$(KBUILD_TARGET_ARCH)/$(KBUILD_TYPE)
 endif
endif # !define PATH_OUT
PATH_OBJCACHE        = $(PATH_OUT_BASE)/kObjCache
PATH_OBJ             = $(PATH_OUT)/obj
PATH_TARGET          = $(PATH_OBJ)/$(CURSUBDIR)
PATH_STAGE           = $(PATH_OUT)/stage
ifndef PATH_INS
 ifdef DESTDIR
PATH_INS             = $(DESTDIR)
 else ifdef DESTROOT
PATH_INS             = $(DESTROOT)
 else
PATH_INS             = $(PATH_OUT)/dist
 endif
endif

# Tripwire obsolete PATH defines.
PATH_BIN = $(error kBuild: PATH_BIN is obsoleted in kBuild 0.1.2. Use PATH_STAGE_BIN or PATH_INST_BIN instead)
PATH_DLL = $(error kBuild: PATH_LIB is obsoleted in kBuild 0.1.2. Use PATH_STAGE_DLL or PATH_INST_DLL instead)
PATH_LIB = $(error kBuild: PATH_LIB is obsoleted in kBuild 0.1.2. Use PATH_STAGE_LIB or PATH_INST_LIB instead)
PATH_SYS = $(error kBuild: PATH_SYS is obsoleted in kBuild 0.1.2. Use PATH_STAGE_SYS or PATH_INST_SYS instead)
PATH_DOC = $(error kBuild: PATH_DOC is obsoleted in kBuild 0.1.2. Use PATH_STAGE_DOC or PATH_INST_DOC instead)

# Development tool tree.
ifndef KBUILD_DEVTOOLS
 ifeq ($(PATH_DEVTOOLS),)
  KBUILD_DEVTOOLS    = $(PATH_ROOT)/tools
 else
  KBUILD_DEVTOOLS   := $(PATH_DEVTOOLS)
  export KBUILD_DEVTOOLS
 endif
endif
KBUILD_DEVTOOLS_TRG ?= $(KBUILD_DEVTOOLS)/$(KBUILD_TARGET).$(KBUILD_TARGET_ARCH)
KBUILD_DEVTOOLS_HST ?= $(KBUILD_DEVTOOLS)/$(KBUILD_HOST).$(KBUILD_HOST_ARCH)
KBUILD_DEVTOOLS_TRG_NOARCH ?= $(KBUILD_DEVTOOLS)/$(KBUILD_TARGET).noarch
KBUILD_DEVTOOLS_HST_NOARCH ?= $(KBUILD_DEVTOOLS)/$(KBUILD_HOST).noarch

if1of ($(KBUILD_TARGET_ARCH), amd64 hppa64 mips64 ppc64 s390x sparc64)
 ifeq ($(KBUILD_TARGET_ARCH),amd64)
  KBUILD_DEVTOOLS_TRG_ALT ?= $(KBUILD_DEVTOOLS)/$(KBUILD_TARGET).x86
 else ifeq ($(KBUILD_TARGET_ARCH),hppa64)
  KBUILD_DEVTOOLS_TRG_ALT ?= $(KBUILD_DEVTOOLS)/$(KBUILD_TARGET).hppa32
 else ifeq ($(KBUILD_TARGET_ARCH),mips64)
  KBUILD_DEVTOOLS_TRG_ALT ?= $(KBUILD_DEVTOOLS)/$(KBUILD_TARGET).mips32
 else ifeq ($(KBUILD_TARGET_ARCH),ppc64)
  KBUILD_DEVTOOLS_TRG_ALT ?= $(KBUILD_DEVTOOLS)/$(KBUILD_TARGET).ppc32
 else ifeq ($(KBUILD_TARGET_ARCH),s390x)
  KBUILD_DEVTOOLS_TRG_ALT ?= $(KBUILD_DEVTOOLS)/$(KBUILD_TARGET).s390
 else ifeq ($(KBUILD_TARGET_ARCH),sparc64)
  KBUILD_DEVTOOLS_TRG_ALT ?= $(KBUILD_DEVTOOLS)/$(KBUILD_TARGET).sparc32
 endif
endif

if1of ($(KBUILD_HOST_ARCH), amd64 hppa64 mips64 ppc64 s390x sparc64)
 ifeq ($(KBUILD_HOST_ARCH),amd64)
  KBUILD_DEVTOOLS_HST_ALT ?= $(KBUILD_DEVTOOLS)/$(KBUILD_HOST).x86
 else ifeq ($(KBUILD_HOST_ARCH),hppa64)
  KBUILD_DEVTOOLS_HST_ALT ?= $(KBUILD_DEVTOOLS)/$(KBUILD_HOST).hppa32
 else ifeq ($(KBUILD_HOST_ARCH),mips64)
  KBUILD_DEVTOOLS_HST_ALT ?= $(KBUILD_DEVTOOLS)/$(KBUILD_HOST).mips32
 else ifeq ($(KBUILD_HOST_ARCH),ppc64)
  KBUILD_DEVTOOLS_HST_ALT ?= $(KBUILD_DEVTOOLS)/$(KBUILD_HOST).ppc32
 else ifeq ($(KBUILD_HOST_ARCH),s390x)
  KBUILD_DEVTOOLS_HST_ALT ?= $(KBUILD_DEVTOOLS)/$(KBUILD_HOST).s390
 else ifeq ($(KBUILD_HOST_ARCH),sparc64)
  KBUILD_DEVTOOLS_HST_ALT ?= $(KBUILD_DEVTOOLS)/$(KBUILD_HOST).sparc32
 endif
endif

# Deprecated legacy names.
unexport PATH_DEVTOOLS
PATH_DEVTOOLS         = $(warning Please replace obsolete PATH_DEVTOOLS with KBUILD_DEVTOOLS)$(KBUILD_DEVTOOLS)
PATH_DEVTOOLS_TRG     = $(warning Please replace obsolete PATH_DEVTOOLS_TRG with KBUILD_DEVTOOLS_TRG)$(KBUILD_DEVTOOLS_TRG)
PATH_DEVTOOLS_BLD     = $(warning Please replace obsolete PATH_DEVTOOLS_BLD with KBUILD_DEVTOOLS_BLD)$(KBUILD_DEVTOOLS_TRG)
PATH_DEVTOOLS_TRG_ALT = $(warning Please replace obsolete PATH_DEVTOOLS_TRG_ALT with KBUILD_DEVTOOLS_TRG_ALT)$(KBUILD_DEVTOOLS_TRG_ALT)
PATH_DEVTOOLS_HST     = $(warning Please replace obsolete PATH_DEVTOOLS_HST with KBUILD_DEVTOOLS_HST)$(KBUILD_DEVTOOLS_HST)
PATH_DEVTOOLS_HST_ALT = $(warning Please replace obsolete PATH_DEVTOOLS_HST_ALT with KBUILD_DEVTOOLS_HST_ALT)$(KBUILD_DEVTOOLS_HST_ALT)

# KBUILD_PATH / PATH_KBUILD is determined by kmk.
ifndef KBUILD_PATH
 KBUILD_PATH := $(PATH_KBUILD)
endif
ifeq ($(strip $(KBUILD_PATH)),)
 $(error kBuild: KBUILD_PATH is missing or empty! kmk is supposed to set it.)
endif
# KBUILD_BIN_PATH / PATH_KBUILD_BIN is determined by kmk.
ifndef KBUILD_BIN_PATH
 KBUILD_BIN_PATH := $(PATH_KBUILD_BIN)
endif
ifeq ($(strip $(KBUILD_BIN_PATH)),)
 $(error kBuild: KBUILD_BIN_PATH is missing or empty! kmk is supposed to set it.)
endif

# kBuild files which might be of interest.
FILE_KBUILD_HEADER := $(KBUILD_PATH)/header.kmk
#FILE_KBUILD_CONFIG := $(KBUILD_PATH)/config.kmk
FILE_KBUILD_FOOTER := $(KBUILD_PATH)/footer.kmk
FILE_KBUILD_SUB_HEADER := $(KBUILD_PATH)/subheader.kmk
FILE_KBUILD_SUB_FOOTER := $(KBUILD_PATH)/subfooter.kmk

## MAKEFILE is the name of the main makefile.
MAKEFILE            := $(firstword $(MAKEFILE_LIST))
## MAKEFILE_CURRENT is the name of the current makefile.
# This is updated everything a sub-makefile is included.
MAKEFILE_CURRENT    := $(MAKEFILE)


## @todo this should be done via SUFF_XYZ.target/host...

#
# Build platform setup.
# (PORTME)
#
if1of ($(KBUILD_HOST), win nt)
# Win, Win32, Win64, NT.
EXEC_X86_WIN32      :=
HOSTSUFF_EXE        := .exe
HOST_PATH_SEP       := $(SEMICOLON)

# OS/2.
else ifeq ($(KBUILD_HOST),os2)
EXEC_X86_WIN32      := innopec.exe
HOSTSUFF_EXE        := .exe
HOST_PATH_SEP       := $(SEMICOLON)

else if1of ($(KBUILD_HOST), dragonfly freebsd gnukfbsd gnuknbsd linux openbsd netbsd)
# Unix (like) systems with wine.
EXEC_X86_WIN32      := wine
HOSTSUFF_EXE        :=
HOST_PATH_SEP       := $(COLON)

else
# Unix (like) systems without wine.
EXEC_X86_WIN32      := false
HOSTSUFF_EXE        :=
HOST_PATH_SEP       := $(COLON)
endif


#
# Build target setup.
# (PORTME)
#
SUFF_DEP    := .dep
SUFF_BIN    :=
if1of ($(KBUILD_TARGET), win nt os2)
SUFF_OBJ    := .obj
SUFF_LIB    := .lib
SUFF_DLL    := .dll
SUFF_EXE    := .exe
SUFF_SYS    := .sys
SUFF_RES    := .res
else ifeq ($(KBUILD_TARGET),l4)
SUFF_OBJ    := .o
SUFF_LIB    := .a
SUFF_DLL    := .s.so
SUFF_EXE    :=
SUFF_SYS    := .a
SUFF_RES    :=
else ifeq ($(KBUILD_TARGET),darwin)
SUFF_OBJ    := .o
SUFF_LIB    := .a
SUFF_DLL    := .dylib
SUFF_EXE    :=
SUFF_SYS    :=
SUFF_RES    :=
else
SUFF_OBJ    := .o
SUFF_LIB    := .a
SUFF_DLL    := .so
SUFF_EXE    :=
 if1of ($(KBUILD_TARGET), dragonfly freebsd gnukfbsd gnuknbsd linux netbsd openbsd) ## @todo check netbsd, gnuknbsd and openbsd.
SUFF_SYS    := .ko
 else
SUFF_SYS    :=
 endif
SUFF_RES    :=
endif

#
# Standard kBuild tools.
#
ifeq ($(KMK),kmk)
KMK         := $(KBUILD_BIN_PATH)/kmk$(HOSTSUFF_EXE)
endif
MAKE        := $(KMK)

GMAKE       := $(KBUILD_BIN_PATH)/kmk_gmake$(HOSTSUFF_EXE)

#DEP_EXT     := $(KBUILD_BIN_PATH)/kDep$(HOSTSUFF_EXE)
#DEP_INT     := $(KBUILD_BIN_PATH)/kDep$(HOSTSUFF_EXE)
#DEP         := $(DEP_INT)

DEP_IDB_EXT := $(KBUILD_BIN_PATH)/kDepIDB$(HOSTSUFF_EXE)
DEP_IDB_INT := kmk_builtin_kDepIDB
DEP_IDB     := $(DEP_IDB_INT)

DEP_OBJ_EXT := $(KBUILD_BIN_PATH)/kDepObj$(HOSTSUFF_EXE)
DEP_OBJ_INT := kmk_builtin_kDepObj
DEP_OBJ     := $(DEP_OBJ_INT)

DEP_PRE     := $(KBUILD_BIN_PATH)/kDepPre$(HOSTSUFF_EXE)

KOBJCACHE_EXT := $(KBUILD_BIN_PATH)/kObjCache$(HOSTSUFF_EXE)
KOBJCACHE   := $(KOBJCACHE_EXT)

KLIBTWEAKER_EXT := $(KBUILD_BIN_PATH)/kLibTweaker$(HOSTSUFF_EXE)
KLIBTWEAKER := $(KLIBTWEAKER_EXT)

APPEND_EXT  := $(KBUILD_BIN_PATH)/kmk_append$(HOSTSUFF_EXE)
APPEND_INT  := kmk_builtin_append
APPEND      := $(APPEND_INT)

CAT_EXT     := $(KBUILD_BIN_PATH)/kmk_cat$(HOSTSUFF_EXE)
CAT_INT     := kmk_builtin_cat
CAT         := $(CAT_INT)

CHMOD_EXT   := $(KBUILD_BIN_PATH)/kmk_chmod$(HOSTSUFF_EXE)
CHMOD_INT   := kmk_builtin_chmod
CHMOD       := $(CHMOD_INT)

CMP_EXT     := $(KBUILD_BIN_PATH)/kmk_cmp$(HOSTSUFF_EXE)
CMP_INT     := kmk_builtin_cmp
CMP         := $(CMP_INT)

CP_EXT      := $(KBUILD_BIN_PATH)/kmk_cp$(HOSTSUFF_EXE)
CP_INT      := kmk_builtin_cp
CP          := $(CP_INT)

ECHO_EXT    := $(KBUILD_BIN_PATH)/kmk_echo$(HOSTSUFF_EXE)
ECHO_INT    := kmk_builtin_echo
ECHO        := $(ECHO_INT)

EXPR_EXT    := $(KBUILD_BIN_PATH)/kmk_expr$(HOSTSUFF_EXE)
EXPR_INT    := kmk_builtin_expr
EXPR        := $(EXPR_INT)

INSTALL_EXT := $(KBUILD_BIN_PATH)/kmk_install$(HOSTSUFF_EXE)
INSTALL_INT := kmk_builtin_install
INSTALL     := $(INSTALL_INT)

LN_EXT      := $(KBUILD_BIN_PATH)/kmk_ln$(HOSTSUFF_EXE)
LN_INT      := kmk_builtin_ln
LN          := $(LN_INT)

MD5SUM_EXT  := $(KBUILD_BIN_PATH)/kmk_md5sum$(HOSTSUFF_EXE)
MD5SUM_INT  := kmk_builtin_md5sum
MD5SUM      := $(MD5SUM_INT)

MKDIR_EXT   := $(KBUILD_BIN_PATH)/kmk_mkdir$(HOSTSUFF_EXE)
MKDIR_INT   := kmk_builtin_mkdir
MKDIR       := $(MKDIR_INT)

MV_EXT      := $(KBUILD_BIN_PATH)/kmk_mv$(HOSTSUFF_EXE)
MV_INT      := kmk_builtin_mv
MV          := $(MV_INT)

PRINTF_EXT  := $(KBUILD_BIN_PATH)/kmk_printf$(HOSTSUFF_EXE)
PRINTF_INT  := kmk_builtin_printf
PRINTF      := $(PRINTF_INT)

REDIRECT_EXT:= $(KBUILD_BIN_PATH)/kmk_redirect$(HOSTSUFF_EXE)
if $(KBUILD_KMK_REVISION) > 2911
REDIRECT_INT:= kmk_builtin_redirect
else
REDIRECT_INT:= $(REDIRECT_EXT)
endif
REDIRECT    := $(REDIRECT_INT)

RM_EXT      := $(KBUILD_BIN_PATH)/kmk_rm$(HOSTSUFF_EXE)
RM_INT      := kmk_builtin_rm
RM          := $(RM_INT)

RMDIR_EXT   := $(KBUILD_BIN_PATH)/kmk_rmdir$(HOSTSUFF_EXE)
RMDIR_INT   := kmk_builtin_rmdir
RMDIR       := $(RMDIR_INT)

SED_EXT     := $(KBUILD_BIN_PATH)/kmk_sed$(HOSTSUFF_EXE)
SED_INT     := $(SED_EXT)
SED         := $(SED_EXT)

SLEEP_INT   := kmk_builtin_sleep
SLEEP_EXT   := $(KBUILD_BIN_PATH)/kmk_sleep$(HOSTSUFF_EXE)
SLEEP       := $(SLEEP_EXT)

TEST_EXT    := $(KBUILD_BIN_PATH)/kmk_test$(HOSTSUFF_EXE)
TEST_INT    := kmk_builtin_test
TEST        := $(TEST_INT)

TIME_EXT    := $(KBUILD_BIN_PATH)/kmk_time$(HOSTSUFF_EXE)
TIME_INT    := $(TIME_EXT)
TIME        := $(TIME_INT)

TOUCH_EXT   := $(KBUILD_BIN_PATH)/kmk_touch$(HOSTSUFF_EXE)
if $(KBUILD_KMK_REVISION) >= 3060
TOUCH_INT   := kmk_builtin_touch
else
TOUCH_INT   := $(TOUCH_EXT)
endif
TOUCH       := $(TOUCH_INT)

# Our default shell is the Almquist shell from *BSD.
ASH         := $(KBUILD_BIN_PATH)/kmk_ash$(HOSTSUFF_EXE)
MAKESHELL   := $(ASH)
SHELL       := $(ASH)
export SHELL MAKESHELL

# Symlinking is problematic on some platforms...
LN_SYMLINK  := $(LN) -s

# When copying to the staging area, use hard links to save time and space.
ifndef KBUILD_NO_HARD_LINKING
 INSTALL_STAGING := $(INSTALL) --hard-link-files-when-possible
else
 INSTALL_STAGING := $(INSTALL)
endif


#
# Some Functions.
# The lower cased ones are either fallbacks or candidates for functions.c.
#

## ABSPATH - make paths absolute.
# This implementation is clumsy and doesn't resolve '..' and '.' components.
#
# @param	$1	The paths to make absolute.
# @obsolete Use the GNU make function $(abspath) directly now.
ABSPATH = $(abspath $(1))$(warning ABSPATH is deprecated, use abspath directly!)

## DIRDEP - make create directory dependencies.
#
# @param	$1	The paths to the directories which must be created.
DIRDEP = $(foreach path,$(patsubst %/,%,$(1)),$(path)/)

## Cygwin kludge.
# This converts /cygdrive/x/% to x:%.
#
# @param	$1	The paths to make native.
# @remark	This macro is pretty much obsolete since we don't use cygwin base make.
ifneq ($(patsubst /cygdrive/%,%,$(CURDIR)),$(CURDIR))
 CYGPATHMIXED = $(foreach path,$(1)\
   ,$(if $(patsubst /cygdrive/%,,$(path)),$(path),$(patsubst $(strip $(firstword $(subst /, ,$(patsubst /cygdrive/%,%,$(path)))))/%,$(strip $(firstword $(subst /, ,$(patsubst /cygdrive/%,%,$(path))))):/%,$(patsubst /cygdrive/%,%,$(path)))))
else
 CYGPATHMIXED = $(1)
endif

## Removes the drive letter from a path (if it has one)
# @param	$1 		the path
no-drive    = $(word $(words $(subst :, ,$(1))),$(subst :, ,$(1)))

## Removes the root slash from a path (if it has one)
# @param	$1 		the path
no-root-slash = $(patsubst /%,%,$(1))

##
# Similar to firstword, except it returns the value of first defined variable.
# @param        $1              list of variables to probe.
define FIRST-DEFINED-VAR
local .RETURN := $(strip $(firstdefined $1, value))
endef

## Figure out where to put object files.
# @param    $1      real target name.
# @param    $2      normalized main target
TARGET_BASE = $(PATH_TARGET)/$(2)/$(call no-root-slash,$(call no-drive,$(1)))

## Figure out where to put object files.
# @param    $1      normalized main target
TARGET_PATH = $(PATH_TARGET)/$(1)

##
# Checks if the specified short option ($1) is found in the flags ($2),
# assuming getopt style options.
#
# @returns $3 if present, $4 not.
#
# @param   $1	The option (single char!).
# @param   $2   The option arguments.
# @param   $3   Eval and return if present.
# @param   $4   Eval and return if not present.
#
# @todo    May confuse option values starting with '-' for options.
# @remarks Invoke like this: $(evalcall KB_FN_OPT_TEST_SHORT,d,$(flags),present,not-present)
#
define KB_FN_OPT_TEST_SHORT
local options := $(translate $(strip $(filter -%,$(filter-out --%,$2))),$(SP)-,)
local .RETURN := $(if-expr $(pos $1,$(options)) != 0,$3,$4)
endef

##
# Checks if the specified long option ($1) is found in the flags ($2),
# assuming getopt style options.
#
# @returns $3 if present, $4 not.
#
# @param   $1	The long option, dashes included. No % chars.
# @param   $2   The option arguments.
# @param   $3   Eval and return if present.
# @param   $4   Eval and return if not present.
#
# @todo    May confuse option values starting with '--' for options.
# @remarks Invoke like this: $(evalcall KBFN_OPT_TEST_SHORT,--defined,$(flags),present,not-present)
#
define KB_FN_OPT_TEST_LONG
local options := $(filter-out =delete=%,$(subst :, =delete=,$(subst =, =delete=,$2)))
local .RETURN := $(if-expr "$(filter $1,$(options))" != "",$3,$4)
endef

##
# Checks if the specified short ($1) or long ($2) option is found in the flags ($2),
# assuming getopt style options.
#
# @returns $4 if present, $5 not.
#
# @param   $1	The short option (single char!).
# @param   $2	The long option, dashes included. No % chars.
# @param   $3   The option arguments.
# @param   $4   Eval and return if present.
# @param   $5   Eval and return if not present.
#
# @todo    May confuse option values starting with '--' for options.
# @remarks Invoke like this: $(evalcall KB_FN_OPT_TEST_SHORT_LONG,d,--defined,$(flags),present,not-present)
#
define KB_FN_OPT_TEST_SHORT_LONG
local short_options := $(translate $(strip $(filter -%,$(filter-out --%,$3))),$(SP)-,)
local long_options := $(filter-out =delete=%,$(subst :, =delete=,$(subst =, =delete=,$3)))
local .RETURN := $(if-expr $(pos $1,$(short_options)) != 0 || "$(filter $2,$(long_options))" != "",$4,$5)
endef

##
# Make an assignment to a deprecated variable.
#
# @param   $1   The variable name.
# @param   $2   The value.
# @param   $3   The variable to use instead.
#
ifdef KBUILD_WITH_DEPREATED_AS_ERROR
 KB_FN_ASSIGN_DEPRECATED = $(eval $(subst :,$$(COLON),$1) = $2$$(error $1 is deprecated, use $3 instead))
else
 KB_FN_ASSIGN_DEPRECATED = $(eval $(subst :,$$(COLON),$1) = $2$$(warning $1 is deprecated, use $3 instead))
endif

##
# Show an assertion message.
#
# @param   $1   The assertion name.
# @param   $2   The details.
#
define KB_FN_ASSERT_MSG
$(info !! kBuild $1 Assertion Failed !!)
ifdef target
 $(info !! target:   $(target))
 local varloc := $(where $(target))
 if "$(varloc)" == "undefined"
  local varloc := $(where $(target)_TEMPLATE)
 endif
 if "$(varloc)" == "undefined"
  local varloc := $(where $(target)_SOURCES)
 endif
 if "$(varloc)" == "undefined"
  local varloc := $(where $(target)_EXTENDS)
 endif
 if "$(varloc)" == "undefined"
  local varloc := $(where target)
 endif
 ifneq ($(varloc),)
  $(info !! location: $(varloc))
 else
  $(info !! probable location: $($(target)_DEFPATH)/Makefile.kmk)
 endif
endif
$(info !! $2)
$(error fixme)
endef

##
# Throw an error if the given path $1 isn't absolute and assertions are enabled.
#
# @param   $1   The name of the path variable to check.
#
ifdef KBUILD_INTERNAL_STRICT
 KB_FN_ASSERT_ABSPATH = $(if-expr "$(abspath $($(strip $1)))" != "$(strip $($(strip $1)))",\
 	$(evalcall KB_FN_ASSERT_MSG,abspath,$1 is:$(NLTAB)'$($(strip $1))'$(NLTAB)expected:$(NLTAB)'$(abspath $($(strip $1)))'))
else
 KB_FN_ASSERT_ABSPATH :=
endif


#
# Somewhat simple solution for automatic command dependencies.
#

## Included dependency files (used to be in footer.kmk).
_DEPFILES_INCLUDED :=

## Temporary for the compile rule below.
if "$(KBUILD_KMK_REVISION)" >= 3134
 KBUILD_HAVE_OPTIMIZED_APPEND := 1
endif

##
# Advanced version of KB_FN_AUTO_CMD_DEPS_COMMANDS_EX where you set
# the dependency file name yourself.
#
# After or before the recipe do $(call KB_FN_AUTO_CMD_DEPS_EX,<recipe-target>,<dep-file>).
#
# @param 1    dep file.
ifdef KBUILD_HAVE_OPTIMIZED_APPEND
define KB_FN_AUTO_CMD_DEPS_COMMANDS_EX
	%$(QUIET2)$(APPEND) -tin "$1" \
		'define AUTO_CMD_DEP_$(translate $@,:,_)_PREV_CMDS' \
       	'--insert-command=$@' \
       	'endef'
endef
else
define KB_FN_AUTO_CMD_DEPS_COMMANDS_EX
	%$(QUIET2)$(RM) -f -- "$1"
	%$(QUIET2)$(APPEND) "$1" 'define AUTO_CMD_DEP_$(translate $@,:,_)_PREV_CMDS'
	%$(QUIET2)$(APPEND) -c "$1"  '$@'
	%$(QUIET2)$(APPEND) "$1" 'endef'
endef
endif

##
# Advanced version of KB_FN_AUTO_CMD_DEPS
#
# @param 1     recipe name
# @param 2     dep file.
KB_FN_AUTO_CMD_DEPS_EX = $(eval includedep $2$(NL)_DEPFILES_INCLUDED += $2)$1: .MUST_MAKE = $$(comp-cmds-ex $$(AUTO_CMD_DEP_$(translate $1,:,_)_PREV_CMDS),$$(commands $1),FORCE)

##
# $(call KB_FN_AUTO_CMD_DEPS_COMMANDS) as the first command in a recipe to
# automatically generate command dependencies.
# After or before the recipe do $(call KB_FN_AUTO_CMD_DEPS,<recipe-target>).
ifdef KBUILD_HAVE_OPTIMIZED_APPEND
define KB_FN_AUTO_CMD_DEPS_COMMANDS
	%$(QUIET2)$(APPEND) -tni "$@.auto-dep" \
		'define AUTO_CMD_DEP_$(translate $@,:,_)_PREV_CMDS' \
		'--insert-command=$@' \
		'endef'
endef
else
define KB_FN_AUTO_CMD_DEPS_COMMANDS
	%$(QUIET2)$(RM) -f -- "$@.auto-dep"
       %$(QUIET2)$(APPEND) "$@.auto-dep" 'define AUTO_CMD_DEP_$(translate $@,:,_)_PREV_CMDS'
       %$(QUIET2)$(APPEND) -c "$@.auto-dep"  '$@'
       %$(QUIET2)$(APPEND) "$@.auto-dep" 'endef'
endef
endif

##
# Call before or after defining a recipe that you want automatic command
# dependencies on. The recipe must start off by $(call KB_FN_AUTO_CMD_DEPS_COMMANDS).
#
# @param 1     recipe name
KB_FN_AUTO_CMD_DEPS = $(call KB_FN_AUTO_CMD_DEPS_EX,$1,$1.auto-dep)


#
# Initialize some of the globals which the Config.kmk and
# others can add stuff to if they like for processing in the footer.
#

## KBUILD_TEMPLATE_PATHS
# List a paths (separated by space) where templates can be found.
KBUILD_TEMPLATE_PATHS :=

## KBUILD_TOOL_PATHS
# List of paths (separated by space) where tools can be found.
KBUILD_TOOL_PATHS :=

## KBUILD_SDK_PATHS
# List of paths (separated by space) where SDKs can be found.
KBUILD_SDK_PATHS :=

## KBUILD_UNIT_PATHS
# List of paths (separated by space) where units (USES) can be found.
KBUILD_UNIT_PATHS :=

## KBUILD_DEFAULT_PATHS
# List of paths (separated by space) to search for stuff as a last resort.
KBUILD_DEFAULT_PATHS :=

## Proritized list of the default makefile when walking subdirectories.
# The user can overload this list.
DEFAULT_MAKEFILE := Makefile.kmk makefile.kmk Makefile makefile

## KBUILD_SRC_HANDLERS
# The list of source handlers, pair of extension and handler.
# The user can overload this list to provide additional or custom
# handlers. On a per-target/template see SRC_HANDLERS.
KBUILD_SRC_HANDLERS := \
  .c:def_src_handler_c \
  .C:def_src_handler_c \
.cxx:def_src_handler_cxx \
.CXX:def_src_handler_cxx \
.cpp:def_src_handler_cxx \
.CPP:def_src_handler_cxx \
 .cc:def_src_handler_cxx \
 .CC:def_src_handler_cxx \
  .m:def_src_handler_objc \
  .M:def_src_handler_objcxx \
 .mm:def_src_handler_objcxx \
.asm:def_src_handler_asm \
.ASM:def_src_handler_asm \
  .s:def_src_handler_asm \
  .S:def_src_handler_asm \
 .rc:def_src_handler_rc \
.obj:def_src_handler_obj \
  .o:def_src_handler_obj \
.res:def_src_handler_obj

## PROPS_TOOLS
# This is a subset of PROPS_SINGLE.
PROPS_TOOLS := TOOL CTOOL CXXTOOL PCHTOOL OBJCTOOL OBJCXXTOOL ASTOOL RCTOOL ARTOOL LDTOOL FETCHTOOL UNPACKTOOL PATCHTOOL

## PROPS_SINGLE
# The list of non-accumulative target properties.
# A Config.kmk file can add it's own properties to this list and kBuild
# will do the necessary inheritance for templates, sdks, tools and targets.
PROPS_SINGLE := $(PROPS_TOOLS) TEMPLATE INSTTYPE INST STAGE NOINST BLD_TYPE BLD_TRG BLD_TRG_ARCH BLD_TRG_CPU FETCHDIR \
	OBJSUFF COBJSUFF CXXOBJSUFF PCHOBJSUFF OBJCOBJSUFF OBJCXXOBJSUFF ASOBJSUFF RCOBJSUFF SYSSUFF BINSUFF EXESUFF DLLSUFF LIBSUFF ARLIBSUFF \
	MODE UID GID LD_DEBUG DEBUG_INSTTYPE DEBUG_INST DEBUG_STAGE PCH_HDR
## PROPS_SINGLE_LNK
# Subset of PROPS_SINGLE which applies to all linkable targets.
PROPS_SINGLE_LNK := $(filter-out FETCHTOOL UNPACKTOOL PATCHTOOL FETCHDIR, $(PROPS_SINGLE))

## PROPS_DEFERRED
# This list of non-accumulative target properties which are or may be
# functions, and thus should not be expanded until the very last moment.
PROPS_DEFERRED := INSTFUN INSTALLER PRE_CMDS POST_CMDS PRE_INST_CMDS POST_INST_CMDS \
	PRE_FILE_CMDS POST_FILE_CMDS PRE_SYMLINK_CMDS POST_SYMLINK_CMDS PRE_DIRECTORY_CMDS POST_DIRECTORY_CMDS \
	NAME SONAME

## PROPS_ACCUMULATE_R
# The list of accumulative target properties where the right most value/flag
# is the 'most significant'.
# A Config.kmk file can add it's own properties to this list and kBuild
# will do the necessary inheritance from templates to targets.
PROPS_ACCUMULATE_R := \
	DEPS LNK_DEPS ORDERDEPS LNK_ORDERDEPS DEFS \
	ARFLAGS \
	CFLAGS CDEFS \
	CXXFLAGS CXXDEFS \
	PCHFLAGS PCHDEFS \
	OBJCFLAGS OBJCDEFS \
	OBJCXXFLAGS OBJCXXDEFS \
	ASFLAGS ASDEFS \
	RCFLAGS RCDEFS \
	LDFLAGS \
	IDFLAGS IFFLAGS EXEC_IFFLAGS ISFLAGS \
	FETCHFLAGS UNPACKFLAGS PATCHFLAGS
## PROPS_ACCUMULATE_R_LNK
# Subset of PROPS_ACCUMULATE_R which applies to all linkable targets.
PROPS_ACCUMULATE_R_LNK := $(filter-out ARFLAGS LDFLAGS EXEC_IFFLAGS FETCHFLAGS UNPACKFLAGS PATCHFLAGS, $(PROPS_ACCUMULATE_R))

## PROPS_ACCUMULATE
# The list of accumulative target properties where the left most value/flag
# is the 'most significant'.
# A Config.kmk file can add it's own properties to this list and kBuild
# will do the necessary inheritance from templates to targets.
PROPS_ACCUMULATE_L := \
	SDKS USES SOURCES EXEC_SOURCES SRC_HANDLERS INTERMEDIATES \
	INCS CINCS CXXINCS PCHINCS OBJCINCS OBJCXXINCS ASINCS RCINCS \
	LIBS LIBPATH \
	DIRS BLDDIRS CLEAN
## PROPS_ACCUMULATE_L_LNK
# Subset of PROPS_ACCUMULATE_L which applies to all linkable targets.
PROPS_ACCUMULATE_L_LNK := $(filter-out LIBS LIBPATH EXEC_SOURCES DIRS, $(PROPS_ACCUMULATE_L))

## PROPS_ALL
# List of all the properties.
PROPS_ALL = $(PROPS_SINGLE) $(PROPS_DEFERRED) $(PROPS_ACCUMULATE_L) $(PROPS_ACCUMULATE_R)

## @name Properties valid on programs (BLDPROGS and PROGRAMS)
## @{
PROPS_PROGRAMS_SINGLE        := $(PROPS_SINGLE_LNK) LDTOOL EXESUFF
PROPS_PROGRAMS_DEFERRED      := $(PROPS_DEFERRED)
PROPS_PROGRAMS_ACCUMULATE_R  := $(PROPS_ACCUMULATE_R_LNK) LDFLAGS
PROPS_PROGRAMS_ACCUMULATE_L  := $(PROPS_ACCUMULATE_L_LNK) LIBS LIBPATH
## @}

## @name Properties valid on libraries (LIBRARIES and IMPORT_LIBS)
## @{
PROPS_LIBRARIES_SINGLE       := $(PROPS_SINGLE_LNK) ARTOOL LIBSUFF ARLIBSUFF LIBSUFF
PROPS_LIBRARIES_DEFERRED     := $(filter-out SONAME,$(PROPS_DEFERRED))
PROPS_LIBRARIES_ACCUMULATE_R := $(PROPS_ACCUMULATE_R_LNK) ARFLAGS
PROPS_LIBRARIES_ACCUMULATE_L := $(PROPS_ACCUMULATE_L_LNK)
## @}

## @name Properties valid on dlls (DLLS)
## @{
PROPS_DLLS_SINGLE            := $(PROPS_SINGLE_LNK) LDTOOL DLLSUFF LIBSUFF
PROPS_DLLS_DEFERRED          := $(PROPS_DEFERRED)
PROPS_DLLS_ACCUMULATE_R      := $(PROPS_ACCUMULATE_R_LNK) LDFLAGS
PROPS_DLLS_ACCUMULATE_L      := $(PROPS_ACCUMULATE_L_LNK) LIBS LIBPATH
## @}

## @name Properties valid on system modules (SYSMODS)
## @{
PROPS_SYSMODS_SINGLE         := $(PROPS_SINGLE_LNK) LDTOOL SYSSUFF
PROPS_SYSMODS_DEFERRED       := $(PROPS_DEFERRED)
PROPS_SYSMODS_ACCUMULATE_R   := $(PROPS_ACCUMULATE_R_LNK) LDFLAGS
PROPS_SYSMODS_ACCUMULATE_L   := $(PROPS_ACCUMULATE_L_LNK) LIBS LIBPATH
## @}

## @name Properties valid on misc binaries (MISCBINS)
## @{
PROPS_MISCBINS_SINGLE        := $(PROPS_SINGLE_LNK) LDTOOL BINSUFF
PROPS_MISCBINS_DEFERRED      := $(PROPS_DEFERRED)
PROPS_MISCBINS_ACCUMULATE_R  := $(PROPS_ACCUMULATE_R_LNK) LDFLAGS
PROPS_MISCBINS_ACCUMULATE_L  := $(PROPS_ACCUMULATE_L_LNK) LIBS LIBPATH
## @}

## @name Properties valid on installs (INSTALLS)
## @{
PROPS_INSTALLS_SINGLE        := TOOL TEMPLATE INSTTYPE INST STAGE NOINST BLD_TYPE BLD_TRG BLD_TRG_ARCH BLD_TRG_CPU MODE UID GID
PROPS_INSTALLS_DEFERRED      := INSTFUN INSTALLER PRE_FILE_CMDS POST_FILE_CMDS PRE_SYMLINK_CMDS POST_SYMLINK_CMDS \
	PRE_DIRECTORY_CMDS POST_DIRECTORY_CMDS
PROPS_INSTALLS_ACCUMULATE_R  := DEPS ORDERDEPS GOALS INST_ONLY_GOALS STAGE_ONLY_GOALS IFFLAGS EXEC_IFFLAGS
PROPS_INSTALLS_ACCUMULATE_L  := SOURCES EXEC_SOURCES DIRS CLEAN
## @}

## @name Properties valid on fetches (FETCHES)
## @{
PROPS_FETCHES_SINGLE         := TOOL TEMPLATE FETCHTOOL UNPACKTOOL PATCHTOOL INST FETCHDIR
PROPS_FETCHES_DEFERRED       :=
PROPS_FETCHES_ACCUMULATE_R   := FETCHFLAGS UNPACKFLAGS PATCHFLAGS
PROPS_FETCHES_ACCUMULATE_L   := SOURCES CLEAN
## @}

## KBUILD_COMPILE_CATEGTORIES
# Tools categories for compiling.
KBUILD_COMPILE_CATEGTORIES   := AS C CXX PCH OBJC OBJCXX RC

## KBUILD_GENERIC_CATEGORIES
# Generic tool categories.
KBUILD_GENERIC_CATEGORIES    := FETCH UNPACK PATCH $(addprefix LINK_,LIBRARY PROGRAM DLL SYSMOD MISCBIN)

## PROPS_TOOLS_ONLY
# Properties found only on tools.
# This is expanded in a deferred manner, so it will pick up changes made to
# KBUILD_COMPILE_CATEGTORIES and KBUILD_GENERIC_CATEGORIES made by units.
PROPS_TOOLS_ONLY              = \
	$(foreach cat, $(KBUILD_COMPILE_CATEGTORIES), \
		COMPILE_$(cat)_CMDS \
		COMPILE_$(cat)_OUTPUT \
		COMPILE_$(cat)_OUTPUT_MAYBE \
		COMPILE_$(cat)_DEPEND \
		COMPILE_$(cat)_DEPORD \
		COMPILE_$(cat)_USES_KOBJCACHE ) \
	$(foreach cat, $(KBUILD_GENERIC_CATEGORIES), \
		$(cat)_CMDS \
		$(cat)_OUTPUT \
		$(cat)_OUTPUT_MAYBE \
		$(cat)_DEPEND \
		$(cat)_DEPORD ))


#
# Here is a special 'hack' to prevent innocent environment variables being
# picked up and treated as properties. (The most annoying example of why
# this is necessary is the Visual C++ commandline with it's LIBPATH.)
#
# Define KBUILD_DONT_KILL_ENV_PROPS in the env. or on the commandline to
# disable this 'hack'.
#
ifndef KBUILD_DONT_KILL_ENV_PROPS

define def_nuke_environment_prop
ifeq ($(origin $(prop)),environment)
$(prop) =
endif
endef
$(foreach prop, $(PROPS_ALL) \
	FETCHES PATCHES BLDPROGS LIBRARIES IMPORT_LIBS DLLS PROGRAMS SYSMODS MISCBINS INSTALLS OTHERS \
	SUBDIRS MAKEFILES BLDDIRS \
	,$(eval $(value def_nuke_environment_prop)))

endif # KBUILD_DONT_KILL_ENV_PROPS


#
# Pass configuration.
#
# The PASS_<passname>_trgs variable is listing the targets.
# The PASS_<passname>_vars variable is listing the target variables.
# The PASS_<passname>_pass variable is the lowercased passname.
#

## PASS: fetches
# This pass fetches and unpacks things needed to complete the build.
PASS_FETCHES        := Fetches
PASS_FETCHES_trgs   :=
PASS_FETCHES_vars   := _FETCHES
PASS_FETCHES_pass   := fetches

## PASS: patches
# This pass applies patches.
PASS_PATCHES        := Patches
PASS_PATCHES_trgs   :=
PASS_PATCHES_vars   := _PATCHES
PASS_PATCHES_pass   := patches

## PASS: bldprogs
# This pass builds targets which are required for building the rest.
PASS_BLDPROGS       := Build Programs
PASS_BLDPROGS_trgs  :=
PASS_BLDPROGS_vars  := _BLDPROGS
PASS_BLDPROGS_pass  := bldprogs

## PASS: libraries
# This pass builds library targets.
PASS_LIBRARIES      := Libraries
PASS_LIBRARIES_trgs :=
PASS_LIBRARIES_vars := _LIBS _IMPORT_LIBS _OTHER_LIBRARIES
PASS_LIBRARIES_pass := libraries

## PASS: binaries
# This pass builds dll targets.
PASS_DLLS           := DLLs
PASS_DLLS_trgs      :=
PASS_DLLS_vars      := _DLLS _OTHER_DLLS
PASS_DLLS_pass      := dlls

## PASS: binaries
# This pass builds binary targets, i.e. programs, system modules and stuff.
PASS_BINARIES       := Programs
PASS_BINARIES_trgs  :=
PASS_BINARIES_vars  := _PROGRAMS _SYSMODS _MISC_BINS _OTHER_BINARIES
PASS_BINARIES_pass  := binaries

## PASS: others
# This pass builds other targets.
PASS_OTHERS         := Other Stuff
PASS_OTHERS_trgs    :=
PASS_OTHERS_vars    := _OTHERS
PASS_OTHERS_pass    := others

## PASS: staging
# This pass installs the built entities to a sandbox area.
## @todo split this up into build install (to sandbox) and real installation.
PASS_STAGING        := Staging
PASS_STAGING_trgs   :=
PASS_STAGING_vars   := _STAGE_DIRS _INSTALLS _STAGE_FILES _DEBUG_STAGE_DIRS _DEBUG_STAGE_FILES
PASS_STAGING_pass   := staging

## PASS: install
# This pass installs the built entities to where they will be used (using
# DESTROOT or PATH_INS to indicate where this is).
PASS_INSTALLS       := Install
PASS_INSTALLS_trgs  :=
PASS_INSTALLS_vars  := _INSTALLS_DIRS _INSTALLS_FILES _DEBUG_INSTALL_DIRS _DEBUG_INSTALL_FILES
PASS_INSTALLS_pass  := installs

## PASS: testing
# This pass processes custom rules for executing tests.
PASS_TESTING        := Tests
PASS_TESTING_trgs   :=
PASS_TESTING_vars   := _TESTING
PASS_TESTING_pass   := testing

## PASS: packing
# This pass processes custom packing rules.
PASS_PACKING        := Packing
PASS_PACKING_trgs   :=
PASS_PACKING_vars   := _PACKING
PASS_PACKING_pass   := packing

## PASS: clean
# This pass removes all generated files.
PASS_CLEAN          := Clean
PASS_CLEAN_trgs     := do-clean
PASS_CLEAN_vars     :=
PASS_CLEAN_pass     := clean

## PASS: nothing
# This pass just walks the tree.
PASS_NOTHING        := Nothing
PASS_NOTHING_trgs   := do-nothing
PASS_NOTHING_vars   :=
PASS_NOTHING_pass   := nothing

## DEFAULT_PASSES
# The default passes and their order.
DEFAULT_PASSES := BLDPROGS LIBRARIES DLLS BINARIES OTHERS STAGING

## PASSES
# The passes that should be defined. This must include
# all passes mentioned by DEFAULT_PASSES.
PASSES := FETCHES PATCHES $(DEFAULT_PASSES) INSTALLS TESTING PACKING CLEAN NOTHING


#
# Check for --pretty-command-printing before including the Config.kmk
# so that anyone overriding the message macros can take the implied
# verbosity level change into account.
#
ifndef KBUILD_VERBOSE
 ifndef KBUILD_QUIET
  ifeq ($(KMK_OPTS_PRETTY_COMMAND_PRINTING),1)
   export KBUILD_VERBOSE := 2
  endif
 endif
endif


#
# Legacy variable translation.
# These will be eliminated when switching to the next version.
#
ifdef USE_KOBJCACHE
 ifndef KBUILD_USE_KOBJCACHE
  export KBUILD_USE_KOBJCACHE := $(USE_KOBJCACHE)
 endif
endif


#
# Library path searching hints (target OS + arch).
#
# 	 KBUILD_LIB_SEARCH_SUBS  - Subdirs typically containing the right libraries.
#    KBUILD_LIB_SEARCH_ROOTS - Roots to search for library subdirs.
#    KBUILD_LIB_SEARCH_PATHS - ROOTS + SUBS.
#
ifeq ($(KBUILD_TARGET),darwin)
 KBUILD_LIB_SEARCH_ROOTS := \
	/usr/ \
	/Developer/usr/
 KBUILD_LIB_SEARCH_SUBS  := lib/

else if1of ($(KBUILD_TARGET), freebsd openbsd dragonfly)
 KBUILD_LIB_SEARCH_ROOTS := \
	/ \
	/usr/ \
	/usr/local/
 KBUILD_LIB_SEARCH_SUBS := lib/

else ifeq ($(KBUILD_TARGET),netbsd)
 KBUILD_LIB_SEARCH_ROOTS := \
	/ \
	/usr/ \
	/usr/pkg/ \
	/usr/local/
 KBUILD_LIB_SEARCH_SUBS := lib/

else if1of ($(KBUILD_TARGET), gnukfbsd gnuknbsd linux)
 ifeq ($(realpath /bin),/usr/bin)
  KBUILD_LIB_SEARCH_ROOTS := \
  	/usr/ \
  	/ \
  	/usr/local/
 else
  KBUILD_LIB_SEARCH_ROOTS := \
  	/ \
  	/usr/ \
  	/usr/local/
 endif
 ifeq ($(KBUILD_TARGET_ARCH),amd64)
  KBUILD_LIB_SEARCH_SUBS := \
	lib/x86_64-linux-gnu/ \
	lib64/ \
	lib/
 else ifeq ($(KBUILD_TARGET_ARCH),x86)
  KBUILD_LIB_SEARCH_SUBS := \
	lib/i686-linux-gnu/ \
	lib/i386-linux-gnu/ \
	lib32/ \
	lib/
 else
  KBUILD_LIB_SEARCH_SUBS := lib/
 endif

else ifeq ($(KBUILD_TARGET),solaris)
 KBUILD_LIB_SEARCH_ROOTS := \
	/ \
	/usr/ \
	/usr/sfw/ \
	/usr/local/ \
	/sw/
 ifeq ($(KBUILD_TARGET_ARCH),amd64)
  KBUILD_LIB_SEARCH_SUBS := lib/amd64/ lib/
 else ifeq ($(KBUILD_TARGET_ARCH),sparc64)
  KBUILD_LIB_SEARCH_SUBS := lib/sparcv9/ lib/
 else
  KBUILD_LIB_SEARCH_SUBS := lib/
 endif

else
 KBUILD_LIB_SEARCH_SUBS  :=
 KBUILD_LIB_SEARCH_ROOTS :=
endif
KBUILD_LIB_SEARCH_PATHS  := $(foreach root, $(KBUILD_LIB_SEARCH_ROOTS), $(addprefix $(root),$(KBUILD_LIB_SEARCH_SUBS)))


#
# This is how we find the closest config.kmk.
# It's a little hacky but I think it works fine.
#
_CFGDIR     := .
_CFGFILES   := ./Config.kmk ./config.kmk
define def_include_config
$(eval _CFGDIR := $(_CFGDIR)/$(dir))
_CFGFILES   += $(_CFGDIR)/Config.kmk $(_CFGDIR)/config.kmk
endef
# walk down the _RELATIVE_ path specified by DEPTH.
$(foreach dir,$(subst /, ,$(DEPTH)), $(eval $(def_include_config)) )
# add the default config file.
_CFGFILE    := $(firstword $(wildcard $(_CFGFILES) $(FILE_KBUILD_CONFIG)))
_CFGFILES   :=
_CFGDIR     :=
ifeq ($(_CFGFILE),)
$(error kBuild: no Config.kmk file found! Check the DEPTH: DEPTH='$(DEPTH)' PATH_CURRENT='$(PATH_CURRENT)')
endif

# Include the config.kmk we found file (or the default one).
ifdef KBUILD_PROFILE_SELF
 $(evalcall def_profile_self, including $(_CFGFILE))
 include $(_CFGFILE)
 $(evalcall def_profile_self, included $(_CFGFILE))
else
 include $(_CFGFILE)
endif



#
# Finalize a the central path variables now that we've included the Config.kmk file.
#
# This prevents some trouble when users override the defaults for these
# variables and uses relative paths or paths with incorrect case.
#
PATH_OUT_BASE := $(abspath $(PATH_OUT_BASE))
PATH_OUT      := $(abspath $(PATH_OUT))
PATH_OBJ      := $(abspath $(PATH_OBJ))
PATH_TARGET   := $(abspath $(PATH_TARGET))
PATH_INS      := $(abspath $(PATH_INS))
PATH_STAGE    := $(abspath $(PATH_STAGE))

# Finalize the install and staging directory layouts.
define def_kbuild_finalize_inst
local val := $(strip $($(y)_$(x)))
ifeq ($(val),)
 $(error kBuild: '$(y)_$(x)' is set to an empty value.)
endif
ifneq ($(words $(val)),1)
 $(error kBuild: The '$(y)_$(x)' value '$(val)' should not contain spaces.)
endif
ifneq ($(pos \,$(val)), 0)
 $(error kBuild: The '$(y)_$(x)' value '$(val)' contains DOS slashes: not allowed.)
endif
ifneq ($(pos $(COLON),$(val)), 0)
 $(error kBuild: The '$(y)_$(x)' value '$(val)' contains colon: not allowed.)
endif
ifneq ($(substr $(val),-1), /)
 $(error kBuild: The '$(y)_$(x)' value '$(val)' has no trailing slash.)
endif
if $(pos /../,$(val)) != 0 || "$(substr $(val), 3)" == "../"
 $(error kBuild: The '$(y)_$(x)' value '$(val)' contains dot-dot escape.)
endif
$($(y)_$(x) := $(val)

local val := $(strip $(PATH_$(y)_$(x)))
ifeq ($(val),)
 $(error kBuild: 'PATH_$(y)_$(x)' is set to an empty value.)
endif
PATH_$(y)_$(x) := $(val)
endef
$(foreach y, INST STAGE, $(foreach x, $(KBUILD_INST_PATHS), $(evalcall def_kbuild_finalize_inst)))

# No abspath for devtools since they might've been referenced already and we
# don't want conflicting variable expansions.
KBUILD_DEVTOOLS         := $(KBUILD_DEVTOOLS)
KBUILD_DEVTOOLS_TRG     := $(KBUILD_DEVTOOLS_TRG)
KBUILD_DEVTOOLS_TRG_ALT := $(KBUILD_DEVTOOLS_TRG_ALT)
KBUILD_DEVTOOLS_HST     := $(KBUILD_DEVTOOLS_HST)
KBUILD_DEVTOOLS_HST_ALT := $(KBUILD_DEVTOOLS_HST_ALT)


#
# Setup the message style. The default one is inlined.
#
# See kBuild/msgstyles for more styles or use KBUILD_MSG_STYLE_PATHS
# to create your own message style.
#
KBUILD_MSG_STYLE ?= default
ifeq ($(KBUILD_MSG_STYLE),default)
 #
 # The 'default' style.
 #

 ## Fetch starting.
 # @param 1     Target name.
 MSG_FETCH    ?= $(call MSG_L1,Fetching $1...)
 ## Re-fetch starting.
 # @param 1     Target name.
 MSG_REFETCH  ?= $(call MSG_L1,Re-fetching $1...)
 ## Downloading a fetch component.
 # @param 1     Target name.
 # @param 2     The source URL.
 # @param 3     The destination file name.
 MSG_FETCH_DL ?= $(call MSG_L1,Downloading $1 - $2,=> $3)
 ## Checking a fetch component.
 # @param 1     Target name.
 # @param 2     The source URL.
 # @param 3     The destination file name.
 MSG_FETCH_CHK?= $(call MSG_L1,Checking $1 - $3, ($2))
 ## Unpacking a fetch component.
 # @param 1     Target name.
 # @param 2     The archive file name.
 # @param 3     The target directory.
 MSG_FETCH_UP ?= $(call MSG_L1,Unpacking $1 - $2 => $3)
 ## Fetch completed.
 # @param 1     Target name.
 MSG_FETCH_OK ?= $(call MSG_L1,Successfully fetched $1)
 ## Unfetch a fetch target.
 # @param 1     Target name.
 MSG_UNFETCH  ?= $(call MSG_L1,Unfetching $1...)
 ## Compiling a source file.
 # @param 1     Target name.
 # @param 2     The source filename.
 # @param 3     The primary link output file name.
 # @param 4     The source type (C,CXX,OBJC,AS,RC,++).
 MSG_COMPILE  ?= $(call MSG_L1,Compiling $1 - $2,=> $3)
 ## Tool
 # @param 1     The tool name (bin2c,...)
 # @param 2     Target name.
 # @param 3     The source filename.
 # @param 4     The primary output file name.
 MSG_TOOL     ?= $(call MSG_L1,$1 $2 - $3,=> $4)
 ## Generate a file, typically a source file.
 # @param 1     Target name if applicable.
 # @param 2     Output file name.
 # @param 3     What it's generated from
 MSG_GENERATE ?= $(call MSG_L1,Generating $(if $1,$1 - )$2,$(if $3,from $3))
 ## Linking a bldprog/dll/program/sysmod target.
 # @param 1     Target name.
 # @param 2     The primary link output file name.
 # @param 3     The link tool operation (LINK_LIBRARY,LINK_PROGRAM,LINK_DLL,LINK_SYSMOD,++).
 MSG_LINK     ?= $(call MSG_L1,Linking $1,=> $2)
 ## Merging a library into the target (during library linking).
 # @param 1     Target name.
 # @param 2     The output library name.
 # @param 3     The input library name.
 MSG_AR_MERGE ?= $(call MSG_L1,Merging $3 into $1, ($2))
 ## Creating a directory (build).
 # @param 1     Directory name.
 MSG_MKDIR    ?= $(call MSG_L2,Creating directory $1)
 ## Cleaning.
 MSG_CLEAN    ?= $(call MSG_L1,Cleaning...)
 ## Nothing.
 MSG_NOTHING  ?= $(call MSG_L1,Did nothing in $(CURDIR))
 ## Pass
 # @param 1     The pass name.
 MSG_PASS     ?= $(call MSG_L1,Pass - $1)
 ## Installing a bldprog/lib/dll/program/sysmod target.
 # @param 1     Target name.
 # @param 2     The source filename.
 # @param 3     The destination file name.
 MSG_INST_TRG ?= $(call MSG_L1,Installing $1 => $3)
 ## Installing a file (install target).
 # @param 1     The source filename.
 # @param 2     The destination filename.
 MSG_INST_FILE?= $(call MSG_L1,Installing $2,(<= $1))
 ## Installing a symlink.
 # @param 1     Symlink
 # @param 2     Link target
 MSG_INST_SYM ?= $(call MSG_L1,Installing symlink $1,=> $2)
 ## Installing a directory.
 # @param 1     Directory name.
 MSG_INST_DIR ?= $(call MSG_L1,Installing directory $1)

else
 _KBUILD_MSG_STYLE_FILE := $(firstword $(foreach path, $(KBUILD_MSG_STYLE_PATHS) $(KBUILD_PATH)/msgstyles, $(wildcard $(path)/$(KBUILD_MSG_STYLE).kmk)))
 ifneq ($(_KBUILD_MSG_STYLE_FILE),)
  include $(_KBUILD_MSG_STYLE_FILE)
 else
  $(error kBuild: Can't find the style setup file for KBUILD_MSG_STYLE '$(KBUILD_MSG_STYLE)')
 endif
endif


#
# Message macros.
#
# This is done after including Config.kmk as to allow for
# KBUILD_QUIET and KBUILD_VERBOSE to be configurable.
#
ifdef KBUILD_QUIET
 # No output
 QUIET  := @
 QUIET2 := @
 MSG_L1 :=
 MSG_L2 :=
else
 ifndef KBUILD_VERBOSE
  # Default output level.
  QUIET  := @
  QUIET2 := @
  MSG_L1 ?= %@$(ECHO) "kBuild: $1"
  MSG_L2 :=
 else ifeq ($(KBUILD_VERBOSE),1)
  # A bit more output
  QUIET  := @
  QUIET2 := @
  MSG_L1 ?= %@$(ECHO) "kBuild: $1 $2"
  MSG_L2 :=
 else ifeq ($(KBUILD_VERBOSE),2)
  # Lot more output
  QUIET  :=
  QUIET2 := @
  MSG_L1 ?= %@$(ECHO) "kBuild: $1 $2"
  MSG_L2 ?= %@$(ECHO) "kBuild: $1"
 else
  # maximal output.
  QUIET  :=
  QUIET2 :=
  MSG_L1 ?= %@$(ECHO) "kBuild: $1 $2"
  MSG_L2 ?= %@$(ECHO) "kBuild: $1"
 endif
endif


##
# An internal define used by subheader.kmk, subfooter.kmk, and
# KB_FN_DO_PASS0_ON_TARGET.
#
# @param target    The target to process.
#
define def_subfooter_header_target_pass
 ifndef $(target)_PATH
  ifndef $(target)_DEFPATH
   $(target)_DEFPATH := $(PATH_SUB_CURRENT)
  endif
  $(call KB_FN_ASSIGN_DEPRECATED,$(target)_PATH,$($(target)_DEFPATH), $(target)_DEFPATH)
 else ifndef $(target)_DEFPATH
  $(target)_DEFPATH := $($(target)_PATH)
 endif
 ifndef $(target)_MAKEFILE
  $(target)_MAKEFILE := $(MAKEFILE_CURRENT)
 endif
 ifndef $(target)_0_OUTDIR
  $(target)_0_OUTDIR := $(call TARGET_PATH,$(target))
  $(call KB_FN_ASSIGN_DEPRECATED,PATH_$(target),$($(target)_0_OUTDIR), $(target)_0_OUTDIR)
 endif
endef

##
# Function to call to set _0_OUTDIR, _DEFPATH, and _MAKEFILE earlier than subfooter.
# Can be used to avoid exploiting double expansion.
#
# @param 1     The target name.
KB_FN_DO_PASS0_ON_TARGET = $(foreach target,$1,$(if-expr defined($(target)_0_OUTDIR),,$(evalval def_subfooter_header_target_pass)))


#
# Validate any KBUILD_BLD_TYPES additions and finally the KBUILD_TYPE.
#
if1of ($(KBUILD_BLD_TYPES), $(KBUILD_OSES))
 $(error kBuild: found KBUILD_BLD_TYPES in KBUILD_OSES!)
endif
if1of ($(KBUILD_BLD_TYPES), $(KBUILD_ARCHES))
 $(error kBuild: found KBUILD_BLD_TYPES in KBUILD_ARCHES!)
endif
if1of ($(KBUILD_OSES), $(KBUILD_ARCHES))
 $(error kBuild: found KBUILD_OSES in KBUILD_ARCHES!)
endif
ifn1of ($(KBUILD_TYPE), $(KBUILD_BLD_TYPES))
 $(error kBuild: KBUILD_TYPE(=$(KBUILD_TYPE)) is not found in KBUILD_BLD_TYPES(=$(KBUILD_BLD_TYPES))!)
endif


#
# Mark the output and temporary directories as volatile on windows.
#
# This automatically means the directories not listed here are considered
# static and won't be invalidated once we start running compile jobs.
#
ifeq ($(KBUILD_HOST),win)
 if $(KBUILD_KMK_REVISION) >= 2886
   $(dircache-ctl volatile, $(PATH_OUT_BASE), $(PATH_OUT), $(TEMP), $(TMP), $(TMPDIR), $(TMP))
 endif
endif


ifdef KBUILD_PROFILE_SELF
 $(evalcall def_profile_self, end of header.kmk)
 _KBUILD_TS_HEADER_END := $(_KBUILD_TS_PREV)
endif

# end-of-file-content
__header_kmk__ := 1
endif # !__header_kmk__