src/third_party/mozjs-45/config/config.mk - cobalt - Git at Google

 #
 # This Source Code Form is subject to the terms of the Mozilla Public
 # License, v. 2.0. If a copy of the MPL was not distributed with this
 # file, You can obtain one at http://mozilla.org/MPL/2.0/.

 #
 # config.mk
 #
 # Determines the platform and builds the macros needed to load the
 # appropriate platform-specific .mk file, then defines all (most?)
 # of the generic macros.
 #

 # Define an include-at-most-once flag
 ifdef INCLUDED_CONFIG_MK
 $(error Do not include config.mk twice!)
 endif
 INCLUDED_CONFIG_MK = 1

 EXIT_ON_ERROR = set -e; # Shell loops continue past errors without this.

 ifndef topsrcdir
 topsrcdir	= $(DEPTH)
 endif

 ifndef INCLUDED_AUTOCONF_MK
 include $(DEPTH)/config/autoconf.mk
 endif

 -include $(DEPTH)/.mozconfig.mk

 ifndef EXTERNALLY_MANAGED_MAKE_FILE
 # Using $(firstword) may not be perfect. But it should be good enough for most
 # scenarios.
 _current_makefile = $(CURDIR)/$(firstword $(MAKEFILE_LIST))

 # Import the automatically generated backend file. If this file doesn't exist,
 # the backend hasn't been properly configured. We want this to be a fatal
 # error, hence not using "-include".
 ifndef STANDALONE_MAKEFILE
 GLOBAL_DEPS += backend.mk
 include backend.mk
 endif

 endif

 space = $(NULL) $(NULL)

 # Include defs.mk files that can be found in $(srcdir)/$(DEPTH),
 # $(srcdir)/$(DEPTH-1), $(srcdir)/$(DEPTH-2), etc., and $(srcdir)
 # where $(DEPTH-1) is one level less of depth, $(DEPTH-2), two, etc.
 # i.e. for DEPTH=../../.., DEPTH-1 is ../.. and DEPTH-2 is ..
 # These defs.mk files are used to define variables in a directory
 # and all its subdirectories, recursively.
 __depth := $(subst /, ,$(DEPTH))
 ifeq (.,$(__depth))
 __depth :=
 endif
 $(foreach __d,$(__depth) .,$(eval __depth = $(wordlist 2,$(words $(__depth)),$(__depth))$(eval -include $(subst $(space),/,$(strip $(srcdir) $(__depth) defs.mk)))))

 COMMA = ,

 # Sanity check some variables
 CHECK_VARS := \
  XPI_NAME \
  LIBRARY_NAME \
  MODULE \
  DEPTH \
  XPI_PKGNAME \
  INSTALL_EXTENSION_ID \
  SHARED_LIBRARY_NAME \
  SONAME \
  STATIC_LIBRARY_NAME \
  $(NULL)

 # checks for internal spaces or trailing spaces in the variable
 # named by $x
 check-variable = $(if $(filter-out 0 1,$(words $($(x))z)),$(error Spaces are not allowed in $(x)))

 $(foreach x,$(CHECK_VARS),$(check-variable))

 ifndef INCLUDED_FUNCTIONS_MK
 include $(MOZILLA_DIR)/config/makefiles/functions.mk
 endif

 RM = rm -f

 # FINAL_TARGET specifies the location into which we copy end-user-shipped
 # build products (typelibs, components, chrome). It may already be specified by
 # a moz.build file.
 #
 # If XPI_NAME is set, the files will be shipped to $(DIST)/xpi-stage/$(XPI_NAME)
 # instead of $(DIST)/bin. In both cases, if DIST_SUBDIR is set, the files will be
 # shipped to a $(DIST_SUBDIR) subdirectory.
 FINAL_TARGET ?= $(if $(XPI_NAME),$(DIST)/xpi-stage/$(XPI_NAME),$(DIST)/bin)$(DIST_SUBDIR:%=/%)
 # Override the stored value for the check to make sure that the variable is not
 # redefined in the Makefile.in value.
 FINAL_TARGET_FROZEN := '$(FINAL_TARGET)'

 ifdef XPI_NAME
 ACDEFINES += -DXPI_NAME=$(XPI_NAME)
 endif

 # The VERSION_NUMBER is suffixed onto the end of the DLLs we ship.
 VERSION_NUMBER		= 50

 ifeq ($(HOST_OS_ARCH),WINNT)
   ifeq ($(MOZILLA_DIR),$(topsrcdir))
     win_srcdir := $(subst $(topsrcdir),$(WIN_TOP_SRC),$(srcdir))
   else
     # This means we're in comm-central's topsrcdir, so we need to adjust
     # WIN_TOP_SRC (which points to mozilla's topsrcdir) for the substitution
     # to win_srcdir.
 		cc_WIN_TOP_SRC := $(WIN_TOP_SRC:%/mozilla=%)
     win_srcdir := $(subst $(topsrcdir),$(cc_WIN_TOP_SRC),$(srcdir))
   endif
   BUILD_TOOLS = $(WIN_TOP_SRC)/build/unix
 else
   win_srcdir := $(srcdir)
   BUILD_TOOLS = $(MOZILLA_DIR)/build/unix
 endif

 CONFIG_TOOLS	= $(MOZ_BUILD_ROOT)/config
 AUTOCONF_TOOLS	= $(MOZILLA_DIR)/build/autoconf

 #
 # Strip off the excessively long version numbers on these platforms,
 # but save the version to allow multiple versions of the same base
 # platform to be built in the same tree.
 #
 ifneq (,$(filter FreeBSD HP-UX Linux NetBSD OpenBSD SunOS,$(OS_ARCH)))
 OS_RELEASE	:= $(basename $(OS_RELEASE))

 # Allow the user to ignore the OS_VERSION, which is usually irrelevant.
 ifdef WANT_MOZILLA_CONFIG_OS_VERSION
 OS_VERS		:= $(suffix $(OS_RELEASE))
 OS_VERSION	:= $(shell echo $(OS_VERS) | sed 's/-.*//')
 endif

 endif

 OS_CONFIG	:= $(OS_ARCH)$(OS_RELEASE)

 ifdef _MSC_VER
 CC_WRAPPER ?= $(call py_action,cl)
 CXX_WRAPPER ?= $(call py_action,cl)
 endif # _MSC_VER

 CC := $(CC_WRAPPER) $(CC)
 CXX := $(CXX_WRAPPER) $(CXX)
 MKDIR ?= mkdir
 SLEEP ?= sleep
 TOUCH ?= touch

 PYTHON_PATH = $(PYTHON) $(topsrcdir)/config/pythonpath.py

 # determine debug-related options
 _DEBUG_ASFLAGS :=
 _DEBUG_CFLAGS :=
 _DEBUG_LDFLAGS :=

 _DEBUG_CFLAGS += $(MOZ_DEBUG_DEFINES)

 ifneq (,$(MOZ_DEBUG)$(MOZ_DEBUG_SYMBOLS))
   ifeq ($(AS),yasm)
     ifeq ($(OS_ARCH)_$(GNU_CC),WINNT_)
       _DEBUG_ASFLAGS += -g cv8
     else
       ifneq ($(OS_ARCH),Darwin)
         _DEBUG_ASFLAGS += -g dwarf2
       endif
     endif
   else
     _DEBUG_ASFLAGS += $(MOZ_DEBUG_FLAGS)
   endif
   _DEBUG_CFLAGS += $(MOZ_DEBUG_FLAGS)
   _DEBUG_LDFLAGS += $(MOZ_DEBUG_LDFLAGS)
 endif

 ifeq ($(YASM),$(AS))
 # yasm doesn't like the GNU as flags we may already have in ASFLAGS, so reset.
 ASFLAGS := $(_DEBUG_ASFLAGS)
 # yasm doesn't like -c
 AS_DASH_C_FLAG=
 else
 ASFLAGS += $(_DEBUG_ASFLAGS)
 endif
 OS_CFLAGS += $(_DEBUG_CFLAGS)
 OS_CXXFLAGS += $(_DEBUG_CFLAGS)
 OS_LDFLAGS += $(_DEBUG_LDFLAGS)

 # XXX: What does this? Bug 482434 filed for better explanation.
 ifeq ($(OS_ARCH)_$(GNU_CC),WINNT_)
 ifdef MOZ_DEBUG
 ifneq (,$(MOZ_BROWSE_INFO)$(MOZ_BSCFILE))
 OS_CFLAGS += -FR
 OS_CXXFLAGS += -FR
 endif
 else # ! MOZ_DEBUG

 # MOZ_DEBUG_SYMBOLS generates debug symbols in separate PDB files.
 # Used for generating an optimized build with debugging symbols.
 # Used in the Windows nightlies to generate symbols for crash reporting.
 ifdef MOZ_DEBUG_SYMBOLS
 OS_CXXFLAGS += -UDEBUG -DNDEBUG
 OS_CFLAGS += -UDEBUG -DNDEBUG
 ifdef HAVE_64BIT_BUILD
 OS_LDFLAGS += -DEBUG -OPT:REF,ICF
 else
 OS_LDFLAGS += -DEBUG -OPT:REF
 endif
 endif

 #
 # Handle DMD in optimized builds.
 # No opt to give sane callstacks.
 #
 ifdef MOZ_DMD
 MOZ_OPTIMIZE_FLAGS=-Zi -Od -UDEBUG -DNDEBUG
 ifdef HAVE_64BIT_BUILD
 OS_LDFLAGS = -DEBUG -OPT:REF,ICF
 else
 OS_LDFLAGS = -DEBUG -OPT:REF
 endif
 endif # MOZ_DMD

 endif # MOZ_DEBUG

 endif # WINNT && !GNU_CC

 #
 # Build using PIC by default
 #
 _ENABLE_PIC=1

 # Don't build SIMPLE_PROGRAMS with PGO, since they don't need it anyway,
 # and we don't have the same build logic to re-link them in the second pass.
 ifdef SIMPLE_PROGRAMS
 NO_PROFILE_GUIDED_OPTIMIZE = 1
 endif

 # No sense in profiling unit tests
 ifdef CPP_UNIT_TESTS
 NO_PROFILE_GUIDED_OPTIMIZE = 1
 endif

 # Enable profile-based feedback
 ifneq (1,$(NO_PROFILE_GUIDED_OPTIMIZE))
 ifdef MOZ_PROFILE_GENERATE
 OS_CFLAGS += $(if $(filter $(notdir $<),$(notdir $(NO_PROFILE_GUIDED_OPTIMIZE))),,$(PROFILE_GEN_CFLAGS))
 OS_CXXFLAGS += $(if $(filter $(notdir $<),$(notdir $(NO_PROFILE_GUIDED_OPTIMIZE))),,$(PROFILE_GEN_CFLAGS))
 OS_LDFLAGS += $(PROFILE_GEN_LDFLAGS)
 ifeq (WINNT,$(OS_ARCH))
 AR_FLAGS += -LTCG
 endif
 endif # MOZ_PROFILE_GENERATE

 ifdef MOZ_PROFILE_USE
 OS_CFLAGS += $(if $(filter $(notdir $<),$(notdir $(NO_PROFILE_GUIDED_OPTIMIZE))),,$(PROFILE_USE_CFLAGS))
 OS_CXXFLAGS += $(if $(filter $(notdir $<),$(notdir $(NO_PROFILE_GUIDED_OPTIMIZE))),,$(PROFILE_USE_CFLAGS))
 OS_LDFLAGS += $(PROFILE_USE_LDFLAGS)
 ifeq (WINNT,$(OS_ARCH))
 AR_FLAGS += -LTCG
 endif
 endif # MOZ_PROFILE_USE
 endif # NO_PROFILE_GUIDED_OPTIMIZE

 MAKE_JARS_FLAGS = \
 	-t $(topsrcdir) \
 	-f $(MOZ_CHROME_FILE_FORMAT) \
 	$(NULL)

 ifdef USE_EXTENSION_MANIFEST
 MAKE_JARS_FLAGS += -e
 endif

 TAR_CREATE_FLAGS = -chf

 #
 # Personal makefile customizations go in these optional make include files.
 #
 MY_CONFIG	:= $(DEPTH)/config/myconfig.mk
 MY_RULES	:= $(DEPTH)/config/myrules.mk

 #
 # Default command macros; can be overridden in <arch>.mk.
 #
 CCC = $(CXX)

 INCLUDES = \
   -I$(srcdir) \
   -I. \
   $(LOCAL_INCLUDES) \
   -I$(DIST)/include \
   $(NULL)

 ifndef IS_GYP_DIR
 # NSPR_CFLAGS and NSS_CFLAGS must appear ahead of the other flags to avoid Linux
 # builds wrongly picking up system NSPR/NSS header files.
 OS_INCLUDES := \
   $(NSPR_CFLAGS) $(NSS_CFLAGS) \
   $(MOZ_JPEG_CFLAGS) \
   $(MOZ_PNG_CFLAGS) \
   $(MOZ_ZLIB_CFLAGS) \
   $(MOZ_PIXMAN_CFLAGS) \
   $(NULL)
 endif

 include $(MOZILLA_DIR)/config/static-checking-config.mk

 CFLAGS		= $(OS_CPPFLAGS) $(OS_CFLAGS)
 CXXFLAGS	= $(OS_CPPFLAGS) $(OS_CXXFLAGS)
 LDFLAGS		= $(OS_LDFLAGS) $(MOZBUILD_LDFLAGS) $(MOZ_FIX_LINK_PATHS)

 ifdef MOZ_OPTIMIZE
 ifeq (1,$(MOZ_OPTIMIZE))
 ifneq (,$(if $(MOZ_PROFILE_GENERATE)$(MOZ_PROFILE_USE),$(MOZ_PGO_OPTIMIZE_FLAGS)))
 CFLAGS		+= $(MOZ_PGO_OPTIMIZE_FLAGS)
 CXXFLAGS	+= $(MOZ_PGO_OPTIMIZE_FLAGS)
 else
 CFLAGS		+= $(MOZ_OPTIMIZE_FLAGS)
 CXXFLAGS	+= $(MOZ_OPTIMIZE_FLAGS)
 endif # neq (,$(MOZ_PROFILE_GENERATE)$(MOZ_PROFILE_USE))
 else
 CFLAGS		+= $(MOZ_OPTIMIZE_FLAGS)
 CXXFLAGS	+= $(MOZ_OPTIMIZE_FLAGS)
 endif # MOZ_OPTIMIZE == 1
 LDFLAGS		+= $(MOZ_OPTIMIZE_LDFLAGS)
 RUSTFLAGS	+= $(MOZ_OPTIMIZE_RUSTFLAGS)
 endif # MOZ_OPTIMIZE

 ifdef CROSS_COMPILE
 HOST_CFLAGS	+= $(HOST_OPTIMIZE_FLAGS)
 else
 ifdef MOZ_OPTIMIZE
 ifeq (1,$(MOZ_OPTIMIZE))
 HOST_CFLAGS	+= $(MOZ_OPTIMIZE_FLAGS)
 else
 HOST_CFLAGS	+= $(MOZ_OPTIMIZE_FLAGS)
 endif # MOZ_OPTIMIZE == 1
 endif # MOZ_OPTIMIZE
 endif # CROSS_COMPILE

 CFLAGS += $(MOZ_FRAMEPTR_FLAGS)
 CXXFLAGS += $(MOZ_FRAMEPTR_FLAGS)

 # Check for ALLOW_COMPILER_WARNINGS (shorthand for Makefiles to request that we
 # *don't* use the warnings-as-errors compile flags)

 # Don't use warnings-as-errors in Windows PGO builds because it is suspected of
 # causing problems in that situation. (See bug 437002.)
 ifeq (WINNT_1,$(OS_ARCH)_$(MOZ_PROFILE_GENERATE)$(MOZ_PROFILE_USE))
 ALLOW_COMPILER_WARNINGS=1
 endif # WINNT && (MOS_PROFILE_GENERATE ^ MOZ_PROFILE_USE)

 # Don't use warnings-as-errors in clang-cl because it warns about many more
 # things than MSVC does.
 ifdef CLANG_CL
 ALLOW_COMPILER_WARNINGS=1
 endif # CLANG_CL

 # Use warnings-as-errors if ALLOW_COMPILER_WARNINGS is not set to 1 (which
 # includes the case where it's undefined).
 ifneq (1,$(ALLOW_COMPILER_WARNINGS))
 CXXFLAGS += $(WARNINGS_AS_ERRORS)
 CFLAGS   += $(WARNINGS_AS_ERRORS)
 endif # ALLOW_COMPILER_WARNINGS

 ifeq ($(OS_ARCH)_$(GNU_CC),WINNT_)
 #// Currently, unless USE_STATIC_LIBS is defined, the multithreaded
 #// DLL version of the RTL is used...
 #//
 #//------------------------------------------------------------------------
 ifdef MOZ_ASAN
 # ASAN-instrumented code tries to link against the dynamic CRT, which can't be
 # used in the same link as the static CRT.
 USE_STATIC_LIBS=
 endif # MOZ_ASAN

 ifdef USE_STATIC_LIBS
 RTL_FLAGS=-MT          # Statically linked multithreaded RTL
 ifdef MOZ_DEBUG
 ifndef MOZ_NO_DEBUG_RTL
 RTL_FLAGS=-MTd         # Statically linked multithreaded MSVC4.0 debug RTL
 endif
 endif # MOZ_DEBUG

 else # !USE_STATIC_LIBS

 RTL_FLAGS=-MD          # Dynamically linked, multithreaded RTL
 ifdef MOZ_DEBUG
 ifndef MOZ_NO_DEBUG_RTL
 RTL_FLAGS=-MDd         # Dynamically linked, multithreaded MSVC4.0 debug RTL
 endif
 endif # MOZ_DEBUG
 endif # USE_STATIC_LIBS
 endif # WINNT && !GNU_CC

 ifeq ($(OS_ARCH),Darwin)
 # Compiling ObjC requires an Apple compiler anyway, so it's ok to set
 # host CMFLAGS here.
 HOST_CMFLAGS += -fobjc-exceptions
 HOST_CMMFLAGS += -fobjc-exceptions
 OS_COMPILE_CMFLAGS += -fobjc-exceptions
 OS_COMPILE_CMMFLAGS += -fobjc-exceptions
 ifeq ($(MOZ_WIDGET_TOOLKIT),uikit)
 OS_COMPILE_CMFLAGS += -fobjc-abi-version=2 -fobjc-legacy-dispatch
 OS_COMPILE_CMMFLAGS += -fobjc-abi-version=2 -fobjc-legacy-dispatch
 endif
 endif

 COMPILE_CFLAGS	= $(VISIBILITY_FLAGS) $(DEFINES) $(INCLUDES) $(OS_INCLUDES) $(DSO_CFLAGS) $(DSO_PIC_CFLAGS) $(RTL_FLAGS) $(OS_COMPILE_CFLAGS) $(CFLAGS) $(MOZBUILD_CFLAGS)
 COMPILE_CXXFLAGS = $(if $(DISABLE_STL_WRAPPING),,$(STL_FLAGS)) $(VISIBILITY_FLAGS) $(DEFINES) $(INCLUDES) $(OS_INCLUDES) $(DSO_CFLAGS) $(DSO_PIC_CFLAGS) $(RTL_FLAGS) $(OS_COMPILE_CXXFLAGS) $(CXXFLAGS) $(MOZBUILD_CXXFLAGS)
 COMPILE_CMFLAGS = $(OS_COMPILE_CMFLAGS) $(MOZBUILD_CMFLAGS)
 COMPILE_CMMFLAGS = $(OS_COMPILE_CMMFLAGS) $(MOZBUILD_CMMFLAGS)
 ASFLAGS += $(MOZBUILD_ASFLAGS)

 ifndef CROSS_COMPILE
 HOST_CFLAGS += $(RTL_FLAGS)
 endif

 HOST_CFLAGS += $(HOST_DEFINES) $(MOZBUILD_HOST_CFLAGS)
 HOST_CXXFLAGS += $(HOST_DEFINES) $(MOZBUILD_HOST_CXXFLAGS)

 #
 # Name of the binary code directories
 #
 # Override defaults

 # Default location of include files
 IDL_PARSER_DIR = $(topsrcdir)/xpcom/idl-parser
 IDL_PARSER_CACHE_DIR = $(DEPTH)/xpcom/idl-parser

 SDK_LIB_DIR = $(DIST)/sdk/lib
 SDK_BIN_DIR = $(DIST)/sdk/bin

 DEPENDENCIES	= .md

 ifdef MACOSX_DEPLOYMENT_TARGET
 export MACOSX_DEPLOYMENT_TARGET
 endif # MACOSX_DEPLOYMENT_TARGET

 ifdef MOZ_USING_CCACHE
 ifdef CLANG_CXX
 export CCACHE_CPP2=1
 endif
 endif

 # Set link flags according to whether we want a console.
 ifeq ($(OS_ARCH),WINNT)
 ifdef MOZ_WINCONSOLE
 ifeq ($(MOZ_WINCONSOLE),1)
 WIN32_EXE_LDFLAGS	+= $(WIN32_CONSOLE_EXE_LDFLAGS)
 else # MOZ_WINCONSOLE
 WIN32_EXE_LDFLAGS	+= $(WIN32_GUI_EXE_LDFLAGS)
 endif
 else
 # For setting subsystem version
 WIN32_EXE_LDFLAGS	+= $(WIN32_CONSOLE_EXE_LDFLAGS)
 endif
 endif # WINNT

 ifdef _MSC_VER
 ifeq ($(CPU_ARCH),x86_64)
 # set stack to 2MB on x64 build.  See bug 582910
 WIN32_EXE_LDFLAGS	+= -STACK:2097152
 endif
 endif

 #
 # Include any personal overrides the user might think are needed.
 #
 -include $(topsrcdir)/$(MOZ_BUILD_APP)/app-config.mk
 -include $(MY_CONFIG)

 ######################################################################

 GARBAGE		+= $(DEPENDENCIES) core $(wildcard core.[0-9]*) $(wildcard *.err) $(wildcard *.pure) $(wildcard *_pure_*.o) Templates.DB

 ifeq ($(OS_ARCH),Darwin)
 ifndef NSDISTMODE
 NSDISTMODE=absolute_symlink
 endif
 PWD := $(CURDIR)
 endif

 NSINSTALL_PY := $(PYTHON) $(abspath $(MOZILLA_DIR)/config/nsinstall.py)
 # For Pymake, wherever we use nsinstall.py we're also going to try to make it
 # a native command where possible. Since native commands can't be used outside
 # of single-line commands, we continue to provide INSTALL for general use.
 # Single-line commands should be switched over to install_cmd.
 NSINSTALL_NATIVECMD := %nsinstall nsinstall

 ifdef NSINSTALL_BIN
 NSINSTALL = $(NSINSTALL_BIN)
 else
 ifeq ($(HOST_OS_ARCH),WINNT)
 NSINSTALL = $(NSINSTALL_PY)
 else
 NSINSTALL = $(DEPTH)/config/nsinstall$(HOST_BIN_SUFFIX)
 endif # WINNT
 endif # NSINSTALL_BIN


 ifeq (,$(CROSS_COMPILE)$(filter-out WINNT, $(OS_ARCH)))
 INSTALL = $(NSINSTALL) -t

 else

 # This isn't laid out as conditional directives so that NSDISTMODE can be
 # target-specific.
 INSTALL         = $(if $(filter copy, $(NSDISTMODE)), $(NSINSTALL) -t, $(if $(filter absolute_symlink, $(NSDISTMODE)), $(NSINSTALL) -L $(PWD), $(NSINSTALL) -R))

 endif # WINNT

 # The default for install_cmd is simply INSTALL
 install_cmd ?= $(INSTALL) $(1)

 # Use nsinstall in copy mode to install files on the system
 SYSINSTALL	= $(NSINSTALL) -t
 # This isn't necessarily true, just here
 sysinstall_cmd = install_cmd

 #
 # Localization build automation
 #

 # Because you might wish to "make locales AB_CD=ab-CD", we don't hardcode
 # MOZ_UI_LOCALE directly, but use an intermediate variable that can be
 # overridden by the command line. (Besides, AB_CD is prettier).
 AB_CD = $(MOZ_UI_LOCALE)
 # Many locales directories want this definition.
 ACDEFINES += -DAB_CD=$(AB_CD)

 ifndef L10NBASEDIR
   L10NBASEDIR = $(error L10NBASEDIR not defined by configure)
 else
   IS_LANGUAGE_REPACK = 1
 endif

 EXPAND_LOCALE_SRCDIR = $(if $(filter en-US,$(AB_CD)),$(topsrcdir)/$(1)/en-US,$(or $(realpath $(L10NBASEDIR)),$(abspath $(L10NBASEDIR)))/$(AB_CD)/$(subst /locales,,$(1)))

 ifdef relativesrcdir
 LOCALE_SRCDIR ?= $(call EXPAND_LOCALE_SRCDIR,$(relativesrcdir))
 endif

 ifdef relativesrcdir
 MAKE_JARS_FLAGS += --relativesrcdir=$(relativesrcdir)
 ifneq (en-US,$(AB_CD))
 ifdef LOCALE_MERGEDIR
 MAKE_JARS_FLAGS += --locale-mergedir=$(LOCALE_MERGEDIR)
 endif
 ifdef IS_LANGUAGE_REPACK
 MAKE_JARS_FLAGS += --l10n-base=$(L10NBASEDIR)/$(AB_CD)
 endif
 else
 MAKE_JARS_FLAGS += -c $(LOCALE_SRCDIR)
 endif # en-US
 else
 MAKE_JARS_FLAGS += -c $(LOCALE_SRCDIR)
 endif # ! relativesrcdir

 ifdef LOCALE_MERGEDIR
 MERGE_FILE = $(firstword \
   $(wildcard $(LOCALE_MERGEDIR)/$(subst /locales,,$(relativesrcdir))/$(1)) \
   $(wildcard $(LOCALE_SRCDIR)/$(1)) \
   $(srcdir)/en-US/$(1) )
 else
 MERGE_FILE = $(LOCALE_SRCDIR)/$(1)
 endif
 MERGE_FILES = $(foreach f,$(1),$(call MERGE_FILE,$(f)))

 # These marcros are similar to MERGE_FILE, but no merging, and en-US first.
 # They're used for searchplugins, for example.
 EN_US_OR_L10N_FILE = $(firstword \
   $(wildcard $(srcdir)/en-US/$(1)) \
   $(LOCALE_SRCDIR)/$(1) )
 EN_US_OR_L10N_FILES = $(foreach f,$(1),$(call EN_US_OR_L10N_FILE,$(f)))

 ifneq (WINNT,$(OS_ARCH))
 RUN_TEST_PROGRAM = $(DIST)/bin/run-mozilla.sh
 endif # ! WINNT

 #
 # Java macros
 #

 # Make sure any compiled classes work with at least JVM 1.4
 JAVAC_FLAGS += -source 1.4

 ifdef MOZ_DEBUG
 JAVAC_FLAGS += -g
 endif

 CREATE_PRECOMPLETE_CMD = $(PYTHON) $(abspath $(MOZILLA_DIR)/config/createprecomplete.py)

 # MDDEPDIR is the subdirectory where dependency files are stored
 MDDEPDIR := .deps

 EXPAND_LIBS_EXEC = $(PYTHON) $(MOZILLA_DIR)/config/expandlibs_exec.py
 EXPAND_LIBS_GEN = $(PYTHON) $(MOZILLA_DIR)/config/expandlibs_gen.py
 EXPAND_AR = $(EXPAND_LIBS_EXEC) --extract -- $(AR)
 EXPAND_CC = $(EXPAND_LIBS_EXEC) --uselist -- $(CC)
 EXPAND_CCC = $(EXPAND_LIBS_EXEC) --uselist -- $(CCC)
 EXPAND_LD = $(EXPAND_LIBS_EXEC) --uselist -- $(LD)
 EXPAND_MKSHLIB_ARGS = --uselist
 ifdef SYMBOL_ORDER
 EXPAND_MKSHLIB_ARGS += --symbol-order $(SYMBOL_ORDER)
 endif
 EXPAND_MKSHLIB = $(EXPAND_LIBS_EXEC) $(EXPAND_MKSHLIB_ARGS) -- $(MKSHLIB)

 # $(call CHECK_SYMBOLS,lib,PREFIX,dep_name,test)
 # Checks that the given `lib` doesn't contain dependency on symbols with a
 # version starting with `PREFIX`_ and matching the `test`. `dep_name` is only
 # used for the error message.
 # `test` is an awk expression using the information in the variable `v` which
 # contains a list of version items ([major, minor, ...]).
 define CHECK_SYMBOLS
 @$(TOOLCHAIN_PREFIX)readelf -sW $(1) | \
 awk '$$8 ~ /@$(2)_/ { \
 	split($$8,a,"@"); \
 	split(a[2],b,"_"); \
 	split(b[2],v,"."); \
 	if ($(4)) { \
 		if (!found) { \
 			print "TEST-UNEXPECTED-FAIL | check_stdcxx | We do not want these $(3) symbol versions to be used:" \
 		} \
 		print " ",$$8; \
 		found=1 \
 	} \
 } \
 END { \
 	if (found) { \
 		exit(1) \
 	} \
 }'
 endef

 ifneq (,$(MOZ_LIBSTDCXX_TARGET_VERSION)$(MOZ_LIBSTDCXX_HOST_VERSION))
 CHECK_STDCXX = $(call CHECK_SYMBOLS,$(1),GLIBCXX,libstdc++,v[1] > 3 || (v[1] == 3 && v[2] == 4 && v[3] > 10))
 CHECK_GLIBC = $(call CHECK_SYMBOLS,$(1),GLIBC,libc,v[1] > 2 || (v[1] == 2 && v[2] > 7))
 endif

 ifeq (,$(filter $(OS_TARGET),WINNT Darwin))
 CHECK_TEXTREL = @$(TOOLCHAIN_PREFIX)readelf -d $(1) | grep TEXTREL > /dev/null && echo 'TEST-UNEXPECTED-FAIL | check_textrel | We do not want text relocations in libraries and programs' || true
 endif

 ifeq ($(MOZ_WIDGET_TOOLKIT),android)
 # While this is very unlikely (libc being added by the compiler at the end
 # of the linker command line), if libmozglue.so ends up after libc.so, all
 # hell breaks loose, so better safe than sorry, and check it's actually the
 # case.
 CHECK_MOZGLUE_ORDER = @$(TOOLCHAIN_PREFIX)readelf -d $(1) | grep NEEDED | awk '{ libs[$$NF] = ++n } END { if (libs["[libmozglue.so]"] && libs["[libc.so]"] < libs["[libmozglue.so]"]) { print "libmozglue.so must be linked before libc.so"; exit 1 } }'
 endif

 define CHECK_BINARY
 $(call CHECK_GLIBC,$(1))
 $(call CHECK_STDCXX,$(1))
 $(call CHECK_TEXTREL,$(1))
 $(call LOCAL_CHECKS,$(1))
 $(call CHECK_MOZGLUE_ORDER,$(1))
 endef

 # autoconf.mk sets OBJ_SUFFIX to an error to avoid use before including
 # this file
 OBJ_SUFFIX := $(_OBJ_SUFFIX)

 # PGO builds with GCC build objects with instrumentation in a first pass,
 # then objects optimized, without instrumentation, in a second pass. If
 # we overwrite the objects from the first pass with those from the second,
 # we end up not getting instrumentation data for better optimization on
 # incremental builds. As a consequence, we use a different object suffix
 # for the first pass.
 ifndef NO_PROFILE_GUIDED_OPTIMIZE
 ifdef MOZ_PROFILE_GENERATE
 ifdef GNU_CC
 OBJ_SUFFIX := i_o
 endif
 endif
 endif

 PLY_INCLUDE = -I$(MOZILLA_DIR)/other-licenses/ply

 export CL_INCLUDES_PREFIX
 # Make sure that the build system can handle non-ASCII characters
 # in environment variables to prevent it from breking silently on
 # non-English systems.
 export NONASCII
	#
	# This Source Code Form is subject to the terms of the Mozilla Public
	# License, v. 2.0. If a copy of the MPL was not distributed with this
	# file, You can obtain one at http://mozilla.org/MPL/2.0/.

	#
	# config.mk
	#
	# Determines the platform and builds the macros needed to load the
	# appropriate platform-specific .mk file, then defines all (most?)
	# of the generic macros.
	#

	# Define an include-at-most-once flag
	ifdef INCLUDED_CONFIG_MK
	$(error Do not include config.mk twice!)
	endif
	INCLUDED_CONFIG_MK = 1

	EXIT_ON_ERROR = set -e; # Shell loops continue past errors without this.

	ifndef topsrcdir
	topsrcdir = $(DEPTH)
	endif

	ifndef INCLUDED_AUTOCONF_MK
	include $(DEPTH)/config/autoconf.mk
	endif

	-include $(DEPTH)/.mozconfig.mk

	ifndef EXTERNALLY_MANAGED_MAKE_FILE
	# Using $(firstword) may not be perfect. But it should be good enough for most
	# scenarios.
	_current_makefile = $(CURDIR)/$(firstword $(MAKEFILE_LIST))

	# Import the automatically generated backend file. If this file doesn't exist,
	# the backend hasn't been properly configured. We want this to be a fatal
	# error, hence not using "-include".
	ifndef STANDALONE_MAKEFILE
	GLOBAL_DEPS += backend.mk
	include backend.mk
	endif

	endif

	space = $(NULL) $(NULL)

	# Include defs.mk files that can be found in $(srcdir)/$(DEPTH),
	# $(srcdir)/$(DEPTH-1), $(srcdir)/$(DEPTH-2), etc., and $(srcdir)
	# where $(DEPTH-1) is one level less of depth, $(DEPTH-2), two, etc.
	# i.e. for DEPTH=../../.., DEPTH-1 is ../.. and DEPTH-2 is ..
	# These defs.mk files are used to define variables in a directory
	# and all its subdirectories, recursively.
	__depth := $(subst /, ,$(DEPTH))
	ifeq (.,$(__depth))
	__depth :=
	endif
	$(foreach __d,$(__depth) .,$(eval __depth = $(wordlist 2,$(words $(__depth)),$(__depth))$(eval -include $(subst $(space),/,$(strip $(srcdir) $(__depth) defs.mk)))))

	COMMA = ,

	# Sanity check some variables
	CHECK_VARS := \
	XPI_NAME \
	LIBRARY_NAME \
	MODULE \
	DEPTH \
	XPI_PKGNAME \
	INSTALL_EXTENSION_ID \
	SHARED_LIBRARY_NAME \
	SONAME \
	STATIC_LIBRARY_NAME \
	$(NULL)

	# checks for internal spaces or trailing spaces in the variable
	# named by $x
	check-variable = $(if $(filter-out 0 1,$(words $($(x))z)),$(error Spaces are not allowed in $(x)))

	$(foreach x,$(CHECK_VARS),$(check-variable))

	ifndef INCLUDED_FUNCTIONS_MK
	include $(MOZILLA_DIR)/config/makefiles/functions.mk
	endif

	RM = rm -f

	# FINAL_TARGET specifies the location into which we copy end-user-shipped
	# build products (typelibs, components, chrome). It may already be specified by
	# a moz.build file.
	#
	# If XPI_NAME is set, the files will be shipped to $(DIST)/xpi-stage/$(XPI_NAME)
	# instead of $(DIST)/bin. In both cases, if DIST_SUBDIR is set, the files will be
	# shipped to a $(DIST_SUBDIR) subdirectory.
	FINAL_TARGET ?= $(if $(XPI_NAME),$(DIST)/xpi-stage/$(XPI_NAME),$(DIST)/bin)$(DIST_SUBDIR:%=/%)
	# Override the stored value for the check to make sure that the variable is not
	# redefined in the Makefile.in value.
	FINAL_TARGET_FROZEN := '$(FINAL_TARGET)'

	ifdef XPI_NAME
	ACDEFINES += -DXPI_NAME=$(XPI_NAME)
	endif

	# The VERSION_NUMBER is suffixed onto the end of the DLLs we ship.
	VERSION_NUMBER = 50

	ifeq ($(HOST_OS_ARCH),WINNT)
	ifeq ($(MOZILLA_DIR),$(topsrcdir))
	win_srcdir := $(subst $(topsrcdir),$(WIN_TOP_SRC),$(srcdir))
	else
	# This means we're in comm-central's topsrcdir, so we need to adjust
	# WIN_TOP_SRC (which points to mozilla's topsrcdir) for the substitution
	# to win_srcdir.
	cc_WIN_TOP_SRC := $(WIN_TOP_SRC:%/mozilla=%)
	win_srcdir := $(subst $(topsrcdir),$(cc_WIN_TOP_SRC),$(srcdir))
	endif
	BUILD_TOOLS = $(WIN_TOP_SRC)/build/unix
	else
	win_srcdir := $(srcdir)
	BUILD_TOOLS = $(MOZILLA_DIR)/build/unix
	endif

	CONFIG_TOOLS = $(MOZ_BUILD_ROOT)/config
	AUTOCONF_TOOLS = $(MOZILLA_DIR)/build/autoconf

	#
	# Strip off the excessively long version numbers on these platforms,
	# but save the version to allow multiple versions of the same base
	# platform to be built in the same tree.
	#
	ifneq (,$(filter FreeBSD HP-UX Linux NetBSD OpenBSD SunOS,$(OS_ARCH)))
	OS_RELEASE := $(basename $(OS_RELEASE))

	# Allow the user to ignore the OS_VERSION, which is usually irrelevant.
	ifdef WANT_MOZILLA_CONFIG_OS_VERSION
	OS_VERS := $(suffix $(OS_RELEASE))
	OS_VERSION := $(shell echo $(OS_VERS) \| sed 's/-.*//')
	endif

	endif

	OS_CONFIG := $(OS_ARCH)$(OS_RELEASE)

	ifdef _MSC_VER
	CC_WRAPPER ?= $(call py_action,cl)
	CXX_WRAPPER ?= $(call py_action,cl)
	endif # _MSC_VER

	CC := $(CC_WRAPPER) $(CC)
	CXX := $(CXX_WRAPPER) $(CXX)
	MKDIR ?= mkdir
	SLEEP ?= sleep
	TOUCH ?= touch

	PYTHON_PATH = $(PYTHON) $(topsrcdir)/config/pythonpath.py

	# determine debug-related options
	_DEBUG_ASFLAGS :=
	_DEBUG_CFLAGS :=
	_DEBUG_LDFLAGS :=

	_DEBUG_CFLAGS += $(MOZ_DEBUG_DEFINES)

	ifneq (,$(MOZ_DEBUG)$(MOZ_DEBUG_SYMBOLS))
	ifeq ($(AS),yasm)
	ifeq ($(OS_ARCH)_$(GNU_CC),WINNT_)
	_DEBUG_ASFLAGS += -g cv8
	else
	ifneq ($(OS_ARCH),Darwin)
	_DEBUG_ASFLAGS += -g dwarf2
	endif
	endif
	else
	_DEBUG_ASFLAGS += $(MOZ_DEBUG_FLAGS)
	endif
	_DEBUG_CFLAGS += $(MOZ_DEBUG_FLAGS)
	_DEBUG_LDFLAGS += $(MOZ_DEBUG_LDFLAGS)
	endif

	ifeq ($(YASM),$(AS))
	# yasm doesn't like the GNU as flags we may already have in ASFLAGS, so reset.
	ASFLAGS := $(_DEBUG_ASFLAGS)
	# yasm doesn't like -c
	AS_DASH_C_FLAG=
	else
	ASFLAGS += $(_DEBUG_ASFLAGS)
	endif
	OS_CFLAGS += $(_DEBUG_CFLAGS)
	OS_CXXFLAGS += $(_DEBUG_CFLAGS)
	OS_LDFLAGS += $(_DEBUG_LDFLAGS)

	# XXX: What does this? Bug 482434 filed for better explanation.
	ifeq ($(OS_ARCH)_$(GNU_CC),WINNT_)
	ifdef MOZ_DEBUG
	ifneq (,$(MOZ_BROWSE_INFO)$(MOZ_BSCFILE))
	OS_CFLAGS += -FR
	OS_CXXFLAGS += -FR
	endif
	else # ! MOZ_DEBUG

	# MOZ_DEBUG_SYMBOLS generates debug symbols in separate PDB files.
	# Used for generating an optimized build with debugging symbols.
	# Used in the Windows nightlies to generate symbols for crash reporting.
	ifdef MOZ_DEBUG_SYMBOLS
	OS_CXXFLAGS += -UDEBUG -DNDEBUG
	OS_CFLAGS += -UDEBUG -DNDEBUG
	ifdef HAVE_64BIT_BUILD
	OS_LDFLAGS += -DEBUG -OPT:REF,ICF
	else
	OS_LDFLAGS += -DEBUG -OPT:REF
	endif
	endif

	#
	# Handle DMD in optimized builds.
	# No opt to give sane callstacks.
	#
	ifdef MOZ_DMD
	MOZ_OPTIMIZE_FLAGS=-Zi -Od -UDEBUG -DNDEBUG
	ifdef HAVE_64BIT_BUILD
	OS_LDFLAGS = -DEBUG -OPT:REF,ICF
	else
	OS_LDFLAGS = -DEBUG -OPT:REF
	endif
	endif # MOZ_DMD

	endif # MOZ_DEBUG

	endif # WINNT && !GNU_CC

	#
	# Build using PIC by default
	#
	_ENABLE_PIC=1

	# Don't build SIMPLE_PROGRAMS with PGO, since they don't need it anyway,
	# and we don't have the same build logic to re-link them in the second pass.
	ifdef SIMPLE_PROGRAMS
	NO_PROFILE_GUIDED_OPTIMIZE = 1
	endif

	# No sense in profiling unit tests
	ifdef CPP_UNIT_TESTS
	NO_PROFILE_GUIDED_OPTIMIZE = 1
	endif

	# Enable profile-based feedback
	ifneq (1,$(NO_PROFILE_GUIDED_OPTIMIZE))
	ifdef MOZ_PROFILE_GENERATE
	OS_CFLAGS += $(if $(filter $(notdir $<),$(notdir $(NO_PROFILE_GUIDED_OPTIMIZE))),,$(PROFILE_GEN_CFLAGS))
	OS_CXXFLAGS += $(if $(filter $(notdir $<),$(notdir $(NO_PROFILE_GUIDED_OPTIMIZE))),,$(PROFILE_GEN_CFLAGS))
	OS_LDFLAGS += $(PROFILE_GEN_LDFLAGS)
	ifeq (WINNT,$(OS_ARCH))
	AR_FLAGS += -LTCG
	endif
	endif # MOZ_PROFILE_GENERATE

	ifdef MOZ_PROFILE_USE
	OS_CFLAGS += $(if $(filter $(notdir $<),$(notdir $(NO_PROFILE_GUIDED_OPTIMIZE))),,$(PROFILE_USE_CFLAGS))
	OS_CXXFLAGS += $(if $(filter $(notdir $<),$(notdir $(NO_PROFILE_GUIDED_OPTIMIZE))),,$(PROFILE_USE_CFLAGS))
	OS_LDFLAGS += $(PROFILE_USE_LDFLAGS)
	ifeq (WINNT,$(OS_ARCH))
	AR_FLAGS += -LTCG
	endif
	endif # MOZ_PROFILE_USE
	endif # NO_PROFILE_GUIDED_OPTIMIZE

	MAKE_JARS_FLAGS = \
	-t $(topsrcdir) \
	-f $(MOZ_CHROME_FILE_FORMAT) \
	$(NULL)

	ifdef USE_EXTENSION_MANIFEST
	MAKE_JARS_FLAGS += -e
	endif

	TAR_CREATE_FLAGS = -chf

	#
	# Personal makefile customizations go in these optional make include files.
	#
	MY_CONFIG := $(DEPTH)/config/myconfig.mk
	MY_RULES := $(DEPTH)/config/myrules.mk

	#
	# Default command macros; can be overridden in <arch>.mk.
	#
	CCC = $(CXX)

	INCLUDES = \
	-I$(srcdir) \
	-I. \
	$(LOCAL_INCLUDES) \
	-I$(DIST)/include \
	$(NULL)

	ifndef IS_GYP_DIR
	# NSPR_CFLAGS and NSS_CFLAGS must appear ahead of the other flags to avoid Linux
	# builds wrongly picking up system NSPR/NSS header files.
	OS_INCLUDES := \
	$(NSPR_CFLAGS) $(NSS_CFLAGS) \
	$(MOZ_JPEG_CFLAGS) \
	$(MOZ_PNG_CFLAGS) \
	$(MOZ_ZLIB_CFLAGS) \
	$(MOZ_PIXMAN_CFLAGS) \
	$(NULL)
	endif

	include $(MOZILLA_DIR)/config/static-checking-config.mk

	CFLAGS = $(OS_CPPFLAGS) $(OS_CFLAGS)
	CXXFLAGS = $(OS_CPPFLAGS) $(OS_CXXFLAGS)
	LDFLAGS = $(OS_LDFLAGS) $(MOZBUILD_LDFLAGS) $(MOZ_FIX_LINK_PATHS)

	ifdef MOZ_OPTIMIZE
	ifeq (1,$(MOZ_OPTIMIZE))
	ifneq (,$(if $(MOZ_PROFILE_GENERATE)$(MOZ_PROFILE_USE),$(MOZ_PGO_OPTIMIZE_FLAGS)))
	CFLAGS += $(MOZ_PGO_OPTIMIZE_FLAGS)
	CXXFLAGS += $(MOZ_PGO_OPTIMIZE_FLAGS)
	else
	CFLAGS += $(MOZ_OPTIMIZE_FLAGS)
	CXXFLAGS += $(MOZ_OPTIMIZE_FLAGS)
	endif # neq (,$(MOZ_PROFILE_GENERATE)$(MOZ_PROFILE_USE))
	else
	CFLAGS += $(MOZ_OPTIMIZE_FLAGS)
	CXXFLAGS += $(MOZ_OPTIMIZE_FLAGS)
	endif # MOZ_OPTIMIZE == 1
	LDFLAGS += $(MOZ_OPTIMIZE_LDFLAGS)
	RUSTFLAGS += $(MOZ_OPTIMIZE_RUSTFLAGS)
	endif # MOZ_OPTIMIZE

	ifdef CROSS_COMPILE
	HOST_CFLAGS += $(HOST_OPTIMIZE_FLAGS)
	else
	ifdef MOZ_OPTIMIZE
	ifeq (1,$(MOZ_OPTIMIZE))
	HOST_CFLAGS += $(MOZ_OPTIMIZE_FLAGS)
	else
	HOST_CFLAGS += $(MOZ_OPTIMIZE_FLAGS)
	endif # MOZ_OPTIMIZE == 1
	endif # MOZ_OPTIMIZE
	endif # CROSS_COMPILE

	CFLAGS += $(MOZ_FRAMEPTR_FLAGS)
	CXXFLAGS += $(MOZ_FRAMEPTR_FLAGS)

	# Check for ALLOW_COMPILER_WARNINGS (shorthand for Makefiles to request that we
	# don't use the warnings-as-errors compile flags)

	# Don't use warnings-as-errors in Windows PGO builds because it is suspected of
	# causing problems in that situation. (See bug 437002.)
	ifeq (WINNT_1,$(OS_ARCH)_$(MOZ_PROFILE_GENERATE)$(MOZ_PROFILE_USE))
	ALLOW_COMPILER_WARNINGS=1
	endif # WINNT && (MOS_PROFILE_GENERATE ^ MOZ_PROFILE_USE)

	# Don't use warnings-as-errors in clang-cl because it warns about many more
	# things than MSVC does.
	ifdef CLANG_CL
	ALLOW_COMPILER_WARNINGS=1
	endif # CLANG_CL

	# Use warnings-as-errors if ALLOW_COMPILER_WARNINGS is not set to 1 (which
	# includes the case where it's undefined).
	ifneq (1,$(ALLOW_COMPILER_WARNINGS))
	CXXFLAGS += $(WARNINGS_AS_ERRORS)
	CFLAGS += $(WARNINGS_AS_ERRORS)
	endif # ALLOW_COMPILER_WARNINGS

	ifeq ($(OS_ARCH)_$(GNU_CC),WINNT_)
	#// Currently, unless USE_STATIC_LIBS is defined, the multithreaded
	#// DLL version of the RTL is used...
	#//
	#//------------------------------------------------------------------------
	ifdef MOZ_ASAN
	# ASAN-instrumented code tries to link against the dynamic CRT, which can't be
	# used in the same link as the static CRT.
	USE_STATIC_LIBS=
	endif # MOZ_ASAN

	ifdef USE_STATIC_LIBS
	RTL_FLAGS=-MT # Statically linked multithreaded RTL
	ifdef MOZ_DEBUG
	ifndef MOZ_NO_DEBUG_RTL
	RTL_FLAGS=-MTd # Statically linked multithreaded MSVC4.0 debug RTL
	endif
	endif # MOZ_DEBUG

	else # !USE_STATIC_LIBS

	RTL_FLAGS=-MD # Dynamically linked, multithreaded RTL
	ifdef MOZ_DEBUG
	ifndef MOZ_NO_DEBUG_RTL
	RTL_FLAGS=-MDd # Dynamically linked, multithreaded MSVC4.0 debug RTL
	endif
	endif # MOZ_DEBUG
	endif # USE_STATIC_LIBS
	endif # WINNT && !GNU_CC

	ifeq ($(OS_ARCH),Darwin)
	# Compiling ObjC requires an Apple compiler anyway, so it's ok to set
	# host CMFLAGS here.
	HOST_CMFLAGS += -fobjc-exceptions
	HOST_CMMFLAGS += -fobjc-exceptions
	OS_COMPILE_CMFLAGS += -fobjc-exceptions
	OS_COMPILE_CMMFLAGS += -fobjc-exceptions
	ifeq ($(MOZ_WIDGET_TOOLKIT),uikit)
	OS_COMPILE_CMFLAGS += -fobjc-abi-version=2 -fobjc-legacy-dispatch
	OS_COMPILE_CMMFLAGS += -fobjc-abi-version=2 -fobjc-legacy-dispatch
	endif
	endif

	COMPILE_CFLAGS = $(VISIBILITY_FLAGS) $(DEFINES) $(INCLUDES) $(OS_INCLUDES) $(DSO_CFLAGS) $(DSO_PIC_CFLAGS) $(RTL_FLAGS) $(OS_COMPILE_CFLAGS) $(CFLAGS) $(MOZBUILD_CFLAGS)
	COMPILE_CXXFLAGS = $(if $(DISABLE_STL_WRAPPING),,$(STL_FLAGS)) $(VISIBILITY_FLAGS) $(DEFINES) $(INCLUDES) $(OS_INCLUDES) $(DSO_CFLAGS) $(DSO_PIC_CFLAGS) $(RTL_FLAGS) $(OS_COMPILE_CXXFLAGS) $(CXXFLAGS) $(MOZBUILD_CXXFLAGS)
	COMPILE_CMFLAGS = $(OS_COMPILE_CMFLAGS) $(MOZBUILD_CMFLAGS)
	COMPILE_CMMFLAGS = $(OS_COMPILE_CMMFLAGS) $(MOZBUILD_CMMFLAGS)
	ASFLAGS += $(MOZBUILD_ASFLAGS)

	ifndef CROSS_COMPILE
	HOST_CFLAGS += $(RTL_FLAGS)
	endif

	HOST_CFLAGS += $(HOST_DEFINES) $(MOZBUILD_HOST_CFLAGS)
	HOST_CXXFLAGS += $(HOST_DEFINES) $(MOZBUILD_HOST_CXXFLAGS)

	#
	# Name of the binary code directories
	#
	# Override defaults

	# Default location of include files
	IDL_PARSER_DIR = $(topsrcdir)/xpcom/idl-parser
	IDL_PARSER_CACHE_DIR = $(DEPTH)/xpcom/idl-parser

	SDK_LIB_DIR = $(DIST)/sdk/lib
	SDK_BIN_DIR = $(DIST)/sdk/bin

	DEPENDENCIES = .md

	ifdef MACOSX_DEPLOYMENT_TARGET
	export MACOSX_DEPLOYMENT_TARGET
	endif # MACOSX_DEPLOYMENT_TARGET

	ifdef MOZ_USING_CCACHE
	ifdef CLANG_CXX
	export CCACHE_CPP2=1
	endif
	endif

	# Set link flags according to whether we want a console.
	ifeq ($(OS_ARCH),WINNT)
	ifdef MOZ_WINCONSOLE
	ifeq ($(MOZ_WINCONSOLE),1)
	WIN32_EXE_LDFLAGS += $(WIN32_CONSOLE_EXE_LDFLAGS)
	else # MOZ_WINCONSOLE
	WIN32_EXE_LDFLAGS += $(WIN32_GUI_EXE_LDFLAGS)
	endif
	else
	# For setting subsystem version
	WIN32_EXE_LDFLAGS += $(WIN32_CONSOLE_EXE_LDFLAGS)
	endif
	endif # WINNT

	ifdef _MSC_VER
	ifeq ($(CPU_ARCH),x86_64)
	# set stack to 2MB on x64 build. See bug 582910
	WIN32_EXE_LDFLAGS += -STACK:2097152
	endif
	endif

	#
	# Include any personal overrides the user might think are needed.
	#
	-include $(topsrcdir)/$(MOZ_BUILD_APP)/app-config.mk
	-include $(MY_CONFIG)

	######################################################################

	GARBAGE += $(DEPENDENCIES) core $(wildcard core.[0-9]) $(wildcard .err) $(wildcard .pure) $(wildcard _pure_*.o) Templates.DB

	ifeq ($(OS_ARCH),Darwin)
	ifndef NSDISTMODE
	NSDISTMODE=absolute_symlink
	endif
	PWD := $(CURDIR)
	endif

	NSINSTALL_PY := $(PYTHON) $(abspath $(MOZILLA_DIR)/config/nsinstall.py)
	# For Pymake, wherever we use nsinstall.py we're also going to try to make it
	# a native command where possible. Since native commands can't be used outside
	# of single-line commands, we continue to provide INSTALL for general use.
	# Single-line commands should be switched over to install_cmd.
	NSINSTALL_NATIVECMD := %nsinstall nsinstall

	ifdef NSINSTALL_BIN
	NSINSTALL = $(NSINSTALL_BIN)
	else
	ifeq ($(HOST_OS_ARCH),WINNT)
	NSINSTALL = $(NSINSTALL_PY)
	else
	NSINSTALL = $(DEPTH)/config/nsinstall$(HOST_BIN_SUFFIX)
	endif # WINNT
	endif # NSINSTALL_BIN


	ifeq (,$(CROSS_COMPILE)$(filter-out WINNT, $(OS_ARCH)))
	INSTALL = $(NSINSTALL) -t

	else

	# This isn't laid out as conditional directives so that NSDISTMODE can be
	# target-specific.
	INSTALL = $(if $(filter copy, $(NSDISTMODE)), $(NSINSTALL) -t, $(if $(filter absolute_symlink, $(NSDISTMODE)), $(NSINSTALL) -L $(PWD), $(NSINSTALL) -R))

	endif # WINNT

	# The default for install_cmd is simply INSTALL
	install_cmd ?= $(INSTALL) $(1)

	# Use nsinstall in copy mode to install files on the system
	SYSINSTALL = $(NSINSTALL) -t
	# This isn't necessarily true, just here
	sysinstall_cmd = install_cmd

	#
	# Localization build automation
	#

	# Because you might wish to "make locales AB_CD=ab-CD", we don't hardcode
	# MOZ_UI_LOCALE directly, but use an intermediate variable that can be
	# overridden by the command line. (Besides, AB_CD is prettier).
	AB_CD = $(MOZ_UI_LOCALE)
	# Many locales directories want this definition.
	ACDEFINES += -DAB_CD=$(AB_CD)

	ifndef L10NBASEDIR
	L10NBASEDIR = $(error L10NBASEDIR not defined by configure)
	else
	IS_LANGUAGE_REPACK = 1
	endif

	EXPAND_LOCALE_SRCDIR = $(if $(filter en-US,$(AB_CD)),$(topsrcdir)/$(1)/en-US,$(or $(realpath $(L10NBASEDIR)),$(abspath $(L10NBASEDIR)))/$(AB_CD)/$(subst /locales,,$(1)))

	ifdef relativesrcdir
	LOCALE_SRCDIR ?= $(call EXPAND_LOCALE_SRCDIR,$(relativesrcdir))
	endif

	ifdef relativesrcdir
	MAKE_JARS_FLAGS += --relativesrcdir=$(relativesrcdir)
	ifneq (en-US,$(AB_CD))
	ifdef LOCALE_MERGEDIR
	MAKE_JARS_FLAGS += --locale-mergedir=$(LOCALE_MERGEDIR)
	endif
	ifdef IS_LANGUAGE_REPACK
	MAKE_JARS_FLAGS += --l10n-base=$(L10NBASEDIR)/$(AB_CD)
	endif
	else
	MAKE_JARS_FLAGS += -c $(LOCALE_SRCDIR)
	endif # en-US
	else
	MAKE_JARS_FLAGS += -c $(LOCALE_SRCDIR)
	endif # ! relativesrcdir

	ifdef LOCALE_MERGEDIR
	MERGE_FILE = $(firstword \
	$(wildcard $(LOCALE_MERGEDIR)/$(subst /locales,,$(relativesrcdir))/$(1)) \
	$(wildcard $(LOCALE_SRCDIR)/$(1)) \
	$(srcdir)/en-US/$(1) )
	else
	MERGE_FILE = $(LOCALE_SRCDIR)/$(1)
	endif
	MERGE_FILES = $(foreach f,$(1),$(call MERGE_FILE,$(f)))

	# These marcros are similar to MERGE_FILE, but no merging, and en-US first.
	# They're used for searchplugins, for example.
	EN_US_OR_L10N_FILE = $(firstword \
	$(wildcard $(srcdir)/en-US/$(1)) \
	$(LOCALE_SRCDIR)/$(1) )
	EN_US_OR_L10N_FILES = $(foreach f,$(1),$(call EN_US_OR_L10N_FILE,$(f)))

	ifneq (WINNT,$(OS_ARCH))
	RUN_TEST_PROGRAM = $(DIST)/bin/run-mozilla.sh
	endif # ! WINNT

	#
	# Java macros
	#

	# Make sure any compiled classes work with at least JVM 1.4
	JAVAC_FLAGS += -source 1.4

	ifdef MOZ_DEBUG
	JAVAC_FLAGS += -g
	endif

	CREATE_PRECOMPLETE_CMD = $(PYTHON) $(abspath $(MOZILLA_DIR)/config/createprecomplete.py)

	# MDDEPDIR is the subdirectory where dependency files are stored
	MDDEPDIR := .deps

	EXPAND_LIBS_EXEC = $(PYTHON) $(MOZILLA_DIR)/config/expandlibs_exec.py
	EXPAND_LIBS_GEN = $(PYTHON) $(MOZILLA_DIR)/config/expandlibs_gen.py
	EXPAND_AR = $(EXPAND_LIBS_EXEC) --extract -- $(AR)
	EXPAND_CC = $(EXPAND_LIBS_EXEC) --uselist -- $(CC)
	EXPAND_CCC = $(EXPAND_LIBS_EXEC) --uselist -- $(CCC)
	EXPAND_LD = $(EXPAND_LIBS_EXEC) --uselist -- $(LD)
	EXPAND_MKSHLIB_ARGS = --uselist
	ifdef SYMBOL_ORDER
	EXPAND_MKSHLIB_ARGS += --symbol-order $(SYMBOL_ORDER)
	endif
	EXPAND_MKSHLIB = $(EXPAND_LIBS_EXEC) $(EXPAND_MKSHLIB_ARGS) -- $(MKSHLIB)

	# $(call CHECK_SYMBOLS,lib,PREFIX,dep_name,test)
	# Checks that the given `lib` doesn't contain dependency on symbols with a
	# version starting with `PREFIX`_ and matching the `test`. `dep_name` is only
	# used for the error message.
	# `test` is an awk expression using the information in the variable `v` which
	# contains a list of version items ([major, minor, ...]).
	define CHECK_SYMBOLS
	@$(TOOLCHAIN_PREFIX)readelf -sW $(1) \| \
	awk '$$8 ~ /@$(2)_/ { \
	split($$8,a,"@"); \
	split(a[2],b,"_"); \
	split(b[2],v,"."); \
	if ($(4)) { \
	if (!found) { \
	print "TEST-UNEXPECTED-FAIL \| check_stdcxx \| We do not want these $(3) symbol versions to be used:" \
	} \
	print " ",$$8; \
	found=1 \
	} \
	} \
	END { \
	if (found) { \
	exit(1) \
	} \
	}'
	endef

	ifneq (,$(MOZ_LIBSTDCXX_TARGET_VERSION)$(MOZ_LIBSTDCXX_HOST_VERSION))
	CHECK_STDCXX = $(call CHECK_SYMBOLS,$(1),GLIBCXX,libstdc++,v[1] > 3 \|\| (v[1] == 3 && v[2] == 4 && v[3] > 10))
	CHECK_GLIBC = $(call CHECK_SYMBOLS,$(1),GLIBC,libc,v[1] > 2 \|\| (v[1] == 2 && v[2] > 7))
	endif

	ifeq (,$(filter $(OS_TARGET),WINNT Darwin))
	CHECK_TEXTREL = @$(TOOLCHAIN_PREFIX)readelf -d $(1) \| grep TEXTREL > /dev/null && echo 'TEST-UNEXPECTED-FAIL \| check_textrel \| We do not want text relocations in libraries and programs' \|\| true
	endif

	ifeq ($(MOZ_WIDGET_TOOLKIT),android)
	# While this is very unlikely (libc being added by the compiler at the end
	# of the linker command line), if libmozglue.so ends up after libc.so, all
	# hell breaks loose, so better safe than sorry, and check it's actually the
	# case.
	CHECK_MOZGLUE_ORDER = @$(TOOLCHAIN_PREFIX)readelf -d $(1) \| grep NEEDED \| awk '{ libs[$$NF] = ++n } END { if (libs["[libmozglue.so]"] && libs["[libc.so]"] < libs["[libmozglue.so]"]) { print "libmozglue.so must be linked before libc.so"; exit 1 } }'
	endif

	define CHECK_BINARY
	$(call CHECK_GLIBC,$(1))
	$(call CHECK_STDCXX,$(1))
	$(call CHECK_TEXTREL,$(1))
	$(call LOCAL_CHECKS,$(1))
	$(call CHECK_MOZGLUE_ORDER,$(1))
	endef

	# autoconf.mk sets OBJ_SUFFIX to an error to avoid use before including
	# this file
	OBJ_SUFFIX := $(_OBJ_SUFFIX)

	# PGO builds with GCC build objects with instrumentation in a first pass,
	# then objects optimized, without instrumentation, in a second pass. If
	# we overwrite the objects from the first pass with those from the second,
	# we end up not getting instrumentation data for better optimization on
	# incremental builds. As a consequence, we use a different object suffix
	# for the first pass.
	ifndef NO_PROFILE_GUIDED_OPTIMIZE
	ifdef MOZ_PROFILE_GENERATE
	ifdef GNU_CC
	OBJ_SUFFIX := i_o
	endif
	endif
	endif

	PLY_INCLUDE = -I$(MOZILLA_DIR)/other-licenses/ply

	export CL_INCLUDES_PREFIX
	# Make sure that the build system can handle non-ASCII characters
	# in environment variables to prevent it from breking silently on
	# non-English systems.
	export NONASCII