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Makefile：源码内容
							########################################################################################################
#
# Makefile wrapper to build tcl on Mac OS X in a way compatible with the tk/macosx Xcode buildsystem
#	uses the standard unix build system in tcl/unix (which can be used directly instead of this
#	if you are not using the tk/macosx projects).
#
# Copyright (c) 2002-2007 Daniel A. Steffen <das@users.sourceforge.net>
#
# See the file "license.terms" for information on usage and redistribution of
# this file, and for a DISCLAIMER OF ALL WARRANTIES.
#
# RCS: @(#) $Id: Makefile,v 1.5.2.18 2007/09/13 15:28:17 das Exp $
#
########################################################################################################
#-------------------------------------------------------------------------------------------------------
# customizable settings
DESTDIR			?=
INSTALL_ROOT		?= ${DESTDIR}
BUILD_DIR		?= ${CURDIR}/../../build
SYMROOT			?= ${BUILD_DIR}/${PROJECT}
OBJROOT			?= ${SYMROOT}
EXTRA_CONFIGURE_ARGS	?=
EXTRA_MAKE_ARGS		?=
INSTALL_PATH		?= /Library/Frameworks
PREFIX			?= /usr/local
BINDIR			?= ${PREFIX}/bin
LIBDIR			?= ${INSTALL_PATH}
MANDIR			?= ${PREFIX}/man
# set to non-empty value to install manpages in addition to html help:
INSTALL_MANPAGES	?=
#-------------------------------------------------------------------------------------------------------
# meta targets
meta			:= all install embedded install-embedded clean distclean test
styles			:= develop deploy
all			:= ${styles}
all			: ${all}
install			:= ${styles:%=install-%}
install			: ${install}
install-%:		action := install-
embedded		:= ${styles:%=embedded-%}
embedded		: embedded-deploy
install-embedded	:= ${embedded:%=install-%}
install-embedded	: install-embedded-deploy
clean			:= ${styles:%=clean-%}
clean			: ${clean}
clean-%:		action := clean-
distclean		:= ${styles:%=distclean-%}
distclean		: ${distclean}
distclean-%:		action := distclean-
test			:= ${styles:%=test-%}
test			: ${test}
test-%:			action := test-
targets			:= $(foreach v,${meta},${$v})
#-------------------------------------------------------------------------------------------------------
# build styles
BUILD_STYLE		=
CONFIGURE_ARGS		=
OBJ_DIR			= ${OBJROOT}/${BUILD_STYLE}
develop_make_args	:= BUILD_STYLE=Development CONFIGURE_ARGS=--enable-symbols
deploy_make_args	:= BUILD_STYLE=Deployment INSTALL_TARGET=install-strip 
			   GENERIC_FLAGS=-DNDEBUG
embedded_make_args	:= EMBEDDED_BUILD=1
install_make_args	:= INSTALL_BUILD=1
${targets}:
	${MAKE} ${action}${PROJECT} 
	$(foreach s,${styles} embedded install,$(if $(findstring $s,$@),${${s}_make_args}))
#-------------------------------------------------------------------------------------------------------
# project specific settings
PROJECT			:= tcl
PRODUCT_NAME		:= Tcl
UNIX_DIR		:= ${CURDIR}/../unix
VERSION			:= $(shell awk -F= '/^TCL_VERSION/ {print $$2; nextfile}' ${UNIX_DIR}/configure.in)
TCLSH			:= tclsh${VERSION}
BUILD_TARGET		:= all tcltest
INSTALL_TARGET		:= install
export CPPROG		:= cp -p
INSTALL_TARGETS		= install-binaries install-libraries
ifeq (${EMBEDDED_BUILD},)
INSTALL_TARGETS		+= install-private-headers
endif
ifeq (${INSTALL_BUILD}_${EMBEDDED_BUILD}_${BUILD_STYLE},1__Deployment)
INSTALL_TARGETS		+= html-tcl
ifneq (${INSTALL_MANPAGES},)
INSTALL_TARGETS		+= install-doc
endif
endif
MAKE_VARS		:= INSTALL_ROOT INSTALL_TARGETS VERSION GENERIC_FLAGS
MAKE_ARGS_V		= $(foreach v,${MAKE_VARS},$v='${$v}')
build-${PROJECT}:	target = ${BUILD_TARGET}
install-${PROJECT}:	target = ${INSTALL_TARGET}
clean-${PROJECT} distclean-${PROJECT} test-${PROJECT}: 
			target = $*
DO_MAKE			= +${MAKE} -C ${OBJ_DIR} ${target} ${MAKE_ARGS_V} ${MAKE_ARGS} ${EXTRA_MAKE_ARGS}
#-------------------------------------------------------------------------------------------------------
# build rules
${PROJECT}:
	${MAKE} install-${PROJECT} INSTALL_ROOT=${OBJ_DIR}/
${OBJ_DIR}/Makefile: ${UNIX_DIR}/Makefile.in ${UNIX_DIR}/configure 
		     ${UNIX_DIR}/tclConfig.sh.in Tcl-Info.plist.in
	mkdir -p ${OBJ_DIR} && cd ${OBJ_DIR} && 
	if [ ${UNIX_DIR}/configure -nt config.status ]; then ${UNIX_DIR}/configure 
	--prefix=${PREFIX} --bindir=${BINDIR} --libdir=${LIBDIR} 
	--mandir=${MANDIR} --enable-threads --enable-framework --enable-dtrace 
	${CONFIGURE_ARGS} ${EXTRA_CONFIGURE_ARGS}; else ./config.status; fi
build-${PROJECT}: ${OBJ_DIR}/Makefile
	${DO_MAKE}
ifeq (${INSTALL_BUILD},)
# symolic link hackery to trick
# 'make install INSTALL_ROOT=${OBJ_DIR}'
# into building Tcl.framework and tclsh in ${SYMROOT}
	@cd ${OBJ_DIR} && mkdir -p $(dir ./${LIBDIR}) $(dir ./${BINDIR}) ${SYMROOT} && 
	rm -f ./${LIBDIR} ./${BINDIR} && ln -fs ${SYMROOT} ./${LIBDIR} && 
	ln -fs ${SYMROOT} ./${BINDIR} && ln -fs ${OBJ_DIR}/tcltest ${SYMROOT}
endif
install-${PROJECT}: build-${PROJECT}
ifeq (${EMBEDDED_BUILD}_${INSTALL_ROOT},1_)
	@echo "Cannot install-embedded with empty INSTALL_ROOT !" && false
endif
ifeq (${EMBEDDED_BUILD},1)
	@rm -rf "${INSTALL_ROOT}/${LIBDIR}/Tcl.framework"
endif
	${DO_MAKE}
ifeq (${INSTALL_BUILD},1)
ifeq (${EMBEDDED_BUILD},1)
# if we are embedding frameworks, don't install tclsh
	@rm -f "${INSTALL_ROOT}${BINDIR}/${TCLSH}" && 
	rmdir -p "${INSTALL_ROOT}${BINDIR}" 2>&- || true
else
# redo prebinding (when not building for Mac OS X 10.4 or later only)
	@if [ "`echo "$${MACOSX_DEPLOYMENT_TARGET}" | 
	awk -F '10\.' '{print int($$2)}'`" -lt 4 -a "`echo "$${CFLAGS}" | 
	awk -F '-mmacosx-version-min=10\.' '{print int($$2)}'`" -lt 4 ]; 
	then cd ${INSTALL_ROOT}/; 
	if [ ! -d usr/lib ]; then mkdir -p usr && ln -fs /usr/lib usr/ && RM_USRLIB=1; fi; 
	if [ ! -d System ]; then ln -fs /System . && RM_SYSTEM=1; fi; 
	redo_prebinding -r . "./${LIBDIR}/${PRODUCT_NAME}.framework/Versions/${VERSION}/${PRODUCT_NAME}"; 
	redo_prebinding -r . "./${BINDIR}/${TCLSH}"; 
	if [ -n "$${RM_USRLIB:-}" ]; then rm -f usr/lib; rmdir -p usr 2>&-; fi; 
	if [ -n "$${RM_SYSTEM:-}" ]; then rm -f System; fi; fi
# install tclsh symbolic link
	@ln -fs ${TCLSH} ${INSTALL_ROOT}${BINDIR}/tclsh
endif
endif
ifeq (${BUILD_STYLE}_${EMBEDDED_BUILD},Development_)
# keep copy of debug library around, so that
# Deployment build can be installed on top
# of Development build without overwriting
# the debug library
	@cd ${INSTALL_ROOT}${LIBDIR}/${PRODUCT_NAME}.framework/Versions/${VERSION} && 
	ln -f "${PRODUCT_NAME}" "${PRODUCT_NAME}_debug"
endif
clean-${PROJECT}: %-${PROJECT}:
	${DO_MAKE}
	rm -rf ${SYMROOT}/{${PRODUCT_NAME}.framework,${TCLSH},tcltest}
	rm -f ${OBJ_DIR}{${LIBDIR},${BINDIR}} && 
	rmdir -p ${OBJ_DIR}$(dir ${LIBDIR}) 2>&- || true && 
	rmdir -p ${OBJ_DIR}$(dir ${BINDIR}) 2>&- || true
distclean-${PROJECT}: %-${PROJECT}: clean-${PROJECT}
	${DO_MAKE}
	rm -rf ${OBJ_DIR}
test-${PROJECT}: %-${PROJECT}: build-${PROJECT}
	${DO_MAKE}
#-------------------------------------------------------------------------------------------------------
.PHONY: ${meta} ${targets} ${PROJECT} build-${PROJECT} install-${PROJECT} 
	clean-${PROJECT} distclean-${PROJECT}
.NOTPARALLEL:
#-------------------------------------------------------------------------------------------------------

						