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CMake/Modules/ExternalProject.cmake

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# - Create custom targets to build projects in external trees
# The 'ExternalProject_Add' function creates a custom target to drive
# download, update/patch, configure, build, install and test steps of an
# external project:
# ExternalProject_Add(<name> # Name for custom target
# [DEPENDS projects...] # Targets on which the project depends
# [PREFIX dir] # Root dir for entire project
# [LIST_SEPARATOR sep] # Sep to be replaced by ; in cmd lines
# [TMP_DIR dir] # Directory to store temporary files
# [STAMP_DIR dir] # Directory to store step timestamps
# #--Download step--------------
# [DOWNLOAD_DIR dir] # Directory to store downloaded files
# [DOWNLOAD_COMMAND cmd...] # Command to download source tree
# [CVS_REPOSITORY cvsroot] # CVSROOT of CVS repository
# [CVS_MODULE mod] # Module to checkout from CVS repo
# [CVS_TAG tag] # Tag to checkout from CVS repo
# [SVN_REPOSITORY url] # URL of Subversion repo
# [SVN_REVISION rev] # Revision to checkout from Subversion repo
# [SVN_USERNAME john ] # Username for Subversion checkout and update
# [SVN_PASSWORD doe ] # Password for Subversion checkout and update
# [GIT_REPOSITORY url] # URL of git repo
# [GIT_TAG tag] # Git branch name, commit id or tag
# [URL /.../src.tgz] # Full path or URL of source
# [URL_MD5 md5] # MD5 checksum of file at URL
# [TIMEOUT seconds] # Time allowed for file download operations
# #--Update/Patch step----------
# [UPDATE_COMMAND cmd...] # Source work-tree update command
# [PATCH_COMMAND cmd...] # Command to patch downloaded source
# #--Configure step-------------
# [SOURCE_DIR dir] # Source dir to be used for build
# [CONFIGURE_COMMAND cmd...] # Build tree configuration command
# [CMAKE_COMMAND /.../cmake] # Specify alternative cmake executable
# [CMAKE_GENERATOR gen] # Specify generator for native build
# [CMAKE_ARGS args...] # Arguments to CMake command line
# #--Build step-----------------
# [BINARY_DIR dir] # Specify build dir location
# [BUILD_COMMAND cmd...] # Command to drive the native build
# [BUILD_IN_SOURCE 1] # Use source dir for build dir
# #--Install step---------------
# [INSTALL_DIR dir] # Installation prefix
# [INSTALL_COMMAND cmd...] # Command to drive install after build
# #--Test step---------------
# [TEST_BEFORE_INSTALL 1] # Add test step executed before install step
# [TEST_AFTER_INSTALL 1] # Add test step executed after install step
# [TEST_COMMAND cmd...] # Command to drive test
# #--Output logging-------------
# [LOG_DOWNLOAD 1] # Wrap download in script to log output
# [LOG_UPDATE 1] # Wrap update in script to log output
# [LOG_CONFIGURE 1] # Wrap configure in script to log output
# [LOG_BUILD 1] # Wrap build in script to log output
# [LOG_TEST 1] # Wrap test in script to log output
# [LOG_INSTALL 1] # Wrap install in script to log output
# )
# The *_DIR options specify directories for the project, with default
# directories computed as follows.
# If the PREFIX option is given to ExternalProject_Add() or the EP_PREFIX
# directory property is set, then an external project is built and installed
# under the specified prefix:
# TMP_DIR = <prefix>/tmp
# STAMP_DIR = <prefix>/src/<name>-stamp
# DOWNLOAD_DIR = <prefix>/src
# SOURCE_DIR = <prefix>/src/<name>
# BINARY_DIR = <prefix>/src/<name>-build
# INSTALL_DIR = <prefix>
# Otherwise, if the EP_BASE directory property is set then components
# of an external project are stored under the specified base:
# TMP_DIR = <base>/tmp/<name>
# STAMP_DIR = <base>/Stamp/<name>
# DOWNLOAD_DIR = <base>/Download/<name>
# SOURCE_DIR = <base>/Source/<name>
# BINARY_DIR = <base>/Build/<name>
# INSTALL_DIR = <base>/Install/<name>
# If no PREFIX, EP_PREFIX, or EP_BASE is specified then the default
# is to set PREFIX to "<name>-prefix".
# Relative paths are interpreted with respect to the build directory
# corresponding to the source directory in which ExternalProject_Add is
# invoked.
#
# If SOURCE_DIR is explicitly set to an existing directory the project
# will be built from it.
# Otherwise a download step must be specified using one of the
# DOWNLOAD_COMMAND, CVS_*, SVN_*, or URL options.
# The URL option may refer locally to a directory or source tarball,
# or refer to a remote tarball (e.g. http://.../src.tgz).
#
# The 'ExternalProject_Add_Step' function adds a custom step to an external
# project:
# ExternalProject_Add_Step(<name> <step> # Names of project and custom step
# [COMMAND cmd...] # Command line invoked by this step
# [COMMENT "text..."] # Text printed when step executes
# [DEPENDEES steps...] # Steps on which this step depends
# [DEPENDERS steps...] # Steps that depend on this step
# [DEPENDS files...] # Files on which this step depends
# [ALWAYS 1] # No stamp file, step always runs
# [WORKING_DIRECTORY dir] # Working directory for command
# [LOG 1] # Wrap step in script to log output
# )
# The command line, comment, and working directory of every standard
# and custom step is processed to replace tokens
# <SOURCE_DIR>,
# <BINARY_DIR>,
# <INSTALL_DIR>,
# and <TMP_DIR>
# with corresponding property values.
#
# The 'ExternalProject_Get_Property' function retrieves external project
# target properties:
# ExternalProject_Get_Property(<name> [prop1 [prop2 [...]]])
# It stores property values in variables of the same name.
# Property names correspond to the keyword argument names of
# 'ExternalProject_Add'.
#=============================================================================
# Copyright 2008-2009 Kitware, Inc.
#
# Distributed under the OSI-approved BSD License (the "License");
# see accompanying file Copyright.txt for details.
#
# This software is distributed WITHOUT ANY WARRANTY; without even the
# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
# See the License for more information.
#=============================================================================
# (To distribute this file outside of CMake, substitute the full
# License text for the above reference.)
# Pre-compute a regex to match documented keywords for each command.
file(STRINGS "${CMAKE_CURRENT_LIST_FILE}" lines LIMIT_COUNT 103
REGEX "^# ( \\[[A-Z0-9_]+ [^]]*\\] +#.*$|[A-Za-z0-9_]+\\()")
foreach(line IN LISTS lines)
if("${line}" MATCHES "^# [A-Za-z0-9_]+\\(")
if(_ep_func)
set(_ep_keywords_${_ep_func} "${_ep_keywords_${_ep_func}})$")
endif()
string(REGEX REPLACE "^# ([A-Za-z0-9_]+)\\(.*" "\\1" _ep_func "${line}")
#message("function [${_ep_func}]")
set(_ep_keywords_${_ep_func} "^(")
set(_ep_keyword_sep)
else()
string(REGEX REPLACE "^# \\[([A-Z0-9_]+) .*" "\\1" _ep_key "${line}")
#message(" keyword [${_ep_key}]")
set(_ep_keywords_${_ep_func}
"${_ep_keywords_${_ep_func}}${_ep_keyword_sep}${_ep_key}")
set(_ep_keyword_sep "|")
endif()
endforeach()
if(_ep_func)
set(_ep_keywords_${_ep_func} "${_ep_keywords_${_ep_func}})$")
endif()
function(_ep_parse_arguments f name ns args)
# Transfer the arguments to this function into target properties for the
# new custom target we just added so that we can set up all the build steps
# correctly based on target properties.
#
# We loop through ARGN and consider the namespace starting with an
# upper-case letter followed by at least two more upper-case letters,
# numbers or underscores to be keywords.
set(key)
foreach(arg IN LISTS args)
set(is_value 1)
if(arg MATCHES "^[A-Z][A-Z0-9_][A-Z0-9_]+$" AND
NOT ((arg STREQUAL "${key}") AND (key STREQUAL "COMMAND")) AND
NOT arg MATCHES "^(TRUE|FALSE)$")
if(_ep_keywords_${f} AND arg MATCHES "${_ep_keywords_${f}}")
set(is_value 0)
endif()
endif()
if(is_value)
if(key)
# Value
if(NOT arg STREQUAL "")
set_property(TARGET ${name} APPEND PROPERTY ${ns}${key} "${arg}")
else()
get_property(have_key TARGET ${name} PROPERTY ${ns}${key} SET)
if(have_key)
get_property(value TARGET ${name} PROPERTY ${ns}${key})
set_property(TARGET ${name} PROPERTY ${ns}${key} "${value};${arg}")
else()
set_property(TARGET ${name} PROPERTY ${ns}${key} "${arg}")
endif()
endif()
else()
# Missing Keyword
message(AUTHOR_WARNING "value '${arg}' with no previous keyword in ${f}")
endif()
else()
set(key "${arg}")
endif()
endforeach()
endfunction(_ep_parse_arguments)
define_property(DIRECTORY PROPERTY "EP_BASE" INHERITED
BRIEF_DOCS "Base directory for External Project storage."
FULL_DOCS
"See documentation of the ExternalProject_Add() function in the "
"ExternalProject module."
)
define_property(DIRECTORY PROPERTY "EP_PREFIX" INHERITED
BRIEF_DOCS "Top prefix for External Project storage."
FULL_DOCS
"See documentation of the ExternalProject_Add() function in the "
"ExternalProject module."
)
function(_ep_write_gitclone_script script_filename source_dir git_EXECUTABLE git_repository git_tag src_name work_dir)
file(WRITE ${script_filename}
"if(\"${git_tag}\" STREQUAL \"\")
message(FATAL_ERROR \"Tag for git checkout should not be empty.\")
endif()
execute_process(
COMMAND \${CMAKE_COMMAND} -E remove_directory \"${source_dir}\"
RESULT_VARIABLE error_code
)
if(error_code)
message(FATAL_ERROR \"Failed to remove directory: '${source_dir}'\")
endif()
execute_process(
COMMAND \"${git_EXECUTABLE}\" clone \"${git_repository}\" \"${src_name}\"
WORKING_DIRECTORY \"${work_dir}\"
RESULT_VARIABLE error_code
)
if(error_code)
message(FATAL_ERROR \"Failed to clone repository: '${git_repository}'\")
endif()
execute_process(
COMMAND \"${git_EXECUTABLE}\" checkout ${git_tag}
WORKING_DIRECTORY \"${work_dir}/${src_name}\"
RESULT_VARIABLE error_code
)
if(error_code)
message(FATAL_ERROR \"Failed to checkout tag: '${git_tag}'\")
endif()
execute_process(
COMMAND \"${git_EXECUTABLE}\" submodule init
WORKING_DIRECTORY \"${work_dir}/${src_name}\"
RESULT_VARIABLE error_code
)
if(error_code)
message(FATAL_ERROR \"Failed to init submodules in: '${work_dir}/${src_name}'\")
endif()
execute_process(
COMMAND \"${git_EXECUTABLE}\" submodule update --recursive
WORKING_DIRECTORY \"${work_dir}/${src_name}\"
RESULT_VARIABLE error_code
)
if(error_code)
message(FATAL_ERROR \"Failed to update submodules in: '${work_dir}/${src_name}'\")
endif()
"
)
endfunction(_ep_write_gitclone_script)
function(_ep_write_downloadfile_script script_filename remote local timeout md5)
if(timeout)
set(timeout_args TIMEOUT ${timeout})
set(timeout_msg "${timeout} seconds")
else()
set(timeout_args "# no TIMEOUT")
set(timeout_msg "none")
endif()
if(md5)
set(md5_args EXPECTED_MD5 ${md5})
else()
set(md5_args "# no EXPECTED_MD5")
endif()
file(WRITE ${script_filename}
"message(STATUS \"downloading...
src='${remote}'
dst='${local}'
timeout='${timeout_msg}'\")
file(DOWNLOAD
\"${remote}\"
\"${local}\"
SHOW_PROGRESS
${md5_args}
${timeout_args}
STATUS status
LOG log)
list(GET status 0 status_code)
list(GET status 1 status_string)
if(NOT status_code EQUAL 0)
message(FATAL_ERROR \"error: downloading '${remote}' failed
status_code: \${status_code}
status_string: \${status_string}
log: \${log}
\")
endif()
message(STATUS \"downloading... done\")
"
)
endfunction(_ep_write_downloadfile_script)
function(_ep_write_verifyfile_script script_filename local md5)
file(WRITE ${script_filename}
"message(STATUS \"verifying file...
file='${local}'\")
set(verified 0)
# If an expected md5 checksum exists, compare against it:
#
if(NOT \"${md5}\" STREQUAL \"\")
execute_process(COMMAND \${CMAKE_COMMAND} -E md5sum \"${local}\"
OUTPUT_VARIABLE ov
OUTPUT_STRIP_TRAILING_WHITESPACE
RESULT_VARIABLE rv)
if(NOT rv EQUAL 0)
message(FATAL_ERROR \"error: computing md5sum of '${local}' failed\")
endif()
string(REGEX MATCH \"^([0-9A-Fa-f]+)\" md5_actual \"\${ov}\")
string(TOLOWER \"\${md5_actual}\" md5_actual)
string(TOLOWER \"${md5}\" md5)
if(NOT \"\${md5}\" STREQUAL \"\${md5_actual}\")
message(FATAL_ERROR \"error: md5sum of '${local}' does not match expected value
md5_expected: \${md5}
md5_actual: \${md5_actual}
\")
endif()
set(verified 1)
endif()
if(verified)
message(STATUS \"verifying file... done\")
else()
message(STATUS \"verifying file... warning: did not verify file - no URL_MD5 checksum argument? corrupt file?\")
endif()
"
)
endfunction(_ep_write_verifyfile_script)
function(_ep_write_extractfile_script script_filename name filename directory)
set(args "")
if(filename MATCHES "(\\.bz2|\\.tar\\.gz|\\.tgz|\\.zip)$")
set(args xfz)
endif()
if(filename MATCHES "\\.tar$")
set(args xf)
endif()
if(args STREQUAL "")
message(SEND_ERROR "error: do not know how to extract '${filename}' -- known types are .bz2, .tar, .tar.gz, .tgz and .zip")
return()
endif()
file(WRITE ${script_filename}
"# Make file names absolute:
#
get_filename_component(filename \"${filename}\" ABSOLUTE)
get_filename_component(directory \"${directory}\" ABSOLUTE)
message(STATUS \"extracting...
src='\${filename}'
dst='\${directory}'\")
if(NOT EXISTS \"\${filename}\")
message(FATAL_ERROR \"error: file to extract does not exist: '\${filename}'\")
endif()
# Prepare a space for extracting:
#
set(i 1234)
while(EXISTS \"\${directory}/../ex-${name}\${i}\")
math(EXPR i \"\${i} + 1\")
endwhile()
set(ut_dir \"\${directory}/../ex-${name}\${i}\")
file(MAKE_DIRECTORY \"\${ut_dir}\")
# Extract it:
#
message(STATUS \"extracting... [tar ${args}]\")
execute_process(COMMAND \${CMAKE_COMMAND} -E tar ${args} \${filename}
WORKING_DIRECTORY \${ut_dir}
RESULT_VARIABLE rv)
if(NOT rv EQUAL 0)
message(STATUS \"extracting... [error clean up]\")
file(REMOVE_RECURSE \"\${ut_dir}\")
message(FATAL_ERROR \"error: extract of '\${filename}' failed\")
endif()
# Analyze what came out of the tar file:
#
message(STATUS \"extracting... [analysis]\")
file(GLOB contents \"\${ut_dir}/*\")
list(LENGTH contents n)
if(NOT n EQUAL 1 OR NOT IS_DIRECTORY \"\${contents}\")
set(contents \"\${ut_dir}\")
endif()
# Move \"the one\" directory to the final directory:
#
message(STATUS \"extracting... [rename]\")
file(REMOVE_RECURSE \${directory})
get_filename_component(contents \${contents} ABSOLUTE)
file(RENAME \${contents} \${directory})
# Clean up:
#
message(STATUS \"extracting... [clean up]\")
file(REMOVE_RECURSE \"\${ut_dir}\")
message(STATUS \"extracting... done\")
"
)
endfunction(_ep_write_extractfile_script)
function(_ep_set_directories name)
get_property(prefix TARGET ${name} PROPERTY _EP_PREFIX)
if(NOT prefix)
get_property(prefix DIRECTORY PROPERTY EP_PREFIX)
if(NOT prefix)
get_property(base DIRECTORY PROPERTY EP_BASE)
if(NOT base)
set(prefix "${name}-prefix")
endif()
endif()
endif()
if(prefix)
set(tmp_default "${prefix}/tmp")
set(download_default "${prefix}/src")
set(source_default "${prefix}/src/${name}")
set(binary_default "${prefix}/src/${name}-build")
set(stamp_default "${prefix}/src/${name}-stamp")
set(install_default "${prefix}")
else() # assert(base)
set(tmp_default "${base}/tmp/${name}")
set(download_default "${base}/Download/${name}")
set(source_default "${base}/Source/${name}")
set(binary_default "${base}/Build/${name}")
set(stamp_default "${base}/Stamp/${name}")
set(install_default "${base}/Install/${name}")
endif()
get_property(build_in_source TARGET ${name} PROPERTY _EP_BUILD_IN_SOURCE)
if(build_in_source)
get_property(have_binary_dir TARGET ${name} PROPERTY _EP_BINARY_DIR SET)
if(have_binary_dir)
message(FATAL_ERROR
"External project ${name} has both BINARY_DIR and BUILD_IN_SOURCE!")
endif()
endif()
set(top "${CMAKE_CURRENT_BINARY_DIR}")
set(places stamp download source binary install tmp)
foreach(var ${places})
string(TOUPPER "${var}" VAR)
get_property(${var}_dir TARGET ${name} PROPERTY _EP_${VAR}_DIR)
if(NOT ${var}_dir)
set(${var}_dir "${${var}_default}")
endif()
if(NOT IS_ABSOLUTE "${${var}_dir}")
get_filename_component(${var}_dir "${top}/${${var}_dir}" ABSOLUTE)
endif()
set_property(TARGET ${name} PROPERTY _EP_${VAR}_DIR "${${var}_dir}")
endforeach()
if(build_in_source)
get_property(source_dir TARGET ${name} PROPERTY _EP_SOURCE_DIR)
set_property(TARGET ${name} PROPERTY _EP_BINARY_DIR "${source_dir}")
endif()
# Make the directories at CMake configure time *and* add a custom command
# to make them at build time. They need to exist at makefile generation
# time for Borland make and wmake so that CMake may generate makefiles
# with "cd C:\short\paths\with\no\spaces" commands in them.
#
# Additionally, the add_custom_command is still used in case somebody
# removes one of the necessary directories and tries to rebuild without
# re-running cmake.
foreach(var ${places})
string(TOUPPER "${var}" VAR)
get_property(dir TARGET ${name} PROPERTY _EP_${VAR}_DIR)
file(MAKE_DIRECTORY "${dir}")
if(NOT EXISTS "${dir}")
message(FATAL_ERROR "dir '${dir}' does not exist after file(MAKE_DIRECTORY)")
endif()
endforeach()
endfunction(_ep_set_directories)
function(ExternalProject_Get_Property name)
foreach(var ${ARGN})
string(TOUPPER "${var}" VAR)
get_property(${var} TARGET ${name} PROPERTY _EP_${VAR})
if(NOT ${var})
message(FATAL_ERROR "External project \"${name}\" has no ${var}")
endif()
set(${var} "${${var}}" PARENT_SCOPE)
endforeach()
endfunction(ExternalProject_Get_Property)
function(_ep_get_configure_command_id name cfg_cmd_id_var)
get_target_property(cmd ${name} _EP_CONFIGURE_COMMAND)
if(cmd STREQUAL "")
# Explicit empty string means no configure step for this project
set(${cfg_cmd_id_var} "none" PARENT_SCOPE)
else()
if(NOT cmd)
# Default is "use cmake":
set(${cfg_cmd_id_var} "cmake" PARENT_SCOPE)
else()
# Otherwise we have to analyze the value:
if(cmd MATCHES "^[^;]*/configure")
set(${cfg_cmd_id_var} "configure" PARENT_SCOPE)
elseif(cmd MATCHES "^[^;]*/cmake" AND NOT cmd MATCHES ";-[PE];")
set(${cfg_cmd_id_var} "cmake" PARENT_SCOPE)
elseif(cmd MATCHES "config")
set(${cfg_cmd_id_var} "configure" PARENT_SCOPE)
else()
set(${cfg_cmd_id_var} "unknown:${cmd}" PARENT_SCOPE)
endif()
endif()
endif()
endfunction(_ep_get_configure_command_id)
function(_ep_get_build_command name step cmd_var)
set(cmd "${${cmd_var}}")
if(NOT cmd)
set(args)
_ep_get_configure_command_id(${name} cfg_cmd_id)
if(cfg_cmd_id STREQUAL "cmake")
# CMake project. Select build command based on generator.
get_target_property(cmake_generator ${name} _EP_CMAKE_GENERATOR)
if("${CMAKE_GENERATOR}" MATCHES "Make" AND
("${cmake_generator}" STREQUAL "${CMAKE_GENERATOR}" OR
NOT cmake_generator))
# The project uses the same Makefile generator. Use recursive make.
set(cmd "$(MAKE)")
if(step STREQUAL "INSTALL")
set(args install)
endif()
if(step STREQUAL "TEST")
set(args test)
endif()
else()
# Drive the project with "cmake --build".
get_target_property(cmake_command ${name} _EP_CMAKE_COMMAND)
if(cmake_command)
set(cmd "${cmake_command}")
else()
set(cmd "${CMAKE_COMMAND}")
endif()
set(args --build ${binary_dir} --config ${CMAKE_CFG_INTDIR})
if(step STREQUAL "INSTALL")
list(APPEND args --target install)
endif()
# But for "TEST" drive the project with corresponding "ctest".
if(step STREQUAL "TEST")
string(REGEX REPLACE "^(.*/)cmake([^/]*)$" "\\1ctest\\2" cmd "${cmd}")
set(args "")
endif()
endif()
else() # if(cfg_cmd_id STREQUAL "configure")
# Non-CMake project. Guess "make" and "make install" and "make test".
# But use "$(MAKE)" to get recursive parallel make.
set(cmd "$(MAKE)")
if(step STREQUAL "INSTALL")
set(args install)
endif()
if(step STREQUAL "TEST")
set(args test)
endif()
endif()
# Use user-specified arguments instead of default arguments, if any.
get_property(have_args TARGET ${name} PROPERTY _EP_${step}_ARGS SET)
if(have_args)
get_target_property(args ${name} _EP_${step}_ARGS)
endif()
list(APPEND cmd ${args})
endif()
set(${cmd_var} "${cmd}" PARENT_SCOPE)
endfunction(_ep_get_build_command)
function(_ep_write_log_script name step cmd_var)
ExternalProject_Get_Property(${name} stamp_dir)
set(command "${${cmd_var}}")
set(make "")
set(code_cygpath_make "")
if("${command}" MATCHES "^\\$\\(MAKE\\)")
# GNU make recognizes the string "$(MAKE)" as recursive make, so
# ensure that it appears directly in the makefile.
string(REGEX REPLACE "^\\$\\(MAKE\\)" "\${make}" command "${command}")
set(make "-Dmake=$(MAKE)")
if(WIN32 AND NOT CYGWIN)
set(code_cygpath_make "
if(\${make} MATCHES \"^/\")
execute_process(
COMMAND cygpath -w \${make}
OUTPUT_VARIABLE cygpath_make
ERROR_VARIABLE cygpath_make
RESULT_VARIABLE cygpath_error
OUTPUT_STRIP_TRAILING_WHITESPACE
)
if(NOT cygpath_error)
set(make \${cygpath_make})
endif()
endif()
")
endif()
endif()
set(config "")
if("${CMAKE_CFG_INTDIR}" MATCHES "^\\$")
string(REPLACE "${CMAKE_CFG_INTDIR}" "\${config}" command "${command}")
set(config "-Dconfig=${CMAKE_CFG_INTDIR}")
endif()
# Wrap multiple 'COMMAND' lines up into a second-level wrapper
# script so all output can be sent to one log file.
if("${command}" MATCHES ";COMMAND;")
set(code_execute_process "
${code_cygpath_make}
execute_process(COMMAND \${command} RESULT_VARIABLE result)
if(result)
set(msg \"Command failed (\${result}):\\n\")
foreach(arg IN LISTS command)
set(msg \"\${msg} '\${arg}'\")
endforeach(arg)
message(FATAL_ERROR \"\${msg}\")
endif()
")
set(code "")
set(cmd "")
set(sep "")
foreach(arg IN LISTS command)
if("x${arg}" STREQUAL "xCOMMAND")
set(code "${code}set(command \"${cmd}\")${code_execute_process}")
set(cmd "")
set(sep "")
else()
set(cmd "${cmd}${sep}${arg}")
set(sep ";")
endif()
endforeach()
set(code "${code}set(command \"${cmd}\")${code_execute_process}")
file(WRITE ${stamp_dir}/${name}-${step}-impl.cmake "${code}")
set(command ${CMAKE_COMMAND} "-Dmake=\${make}" "-Dconfig=\${config}" -P ${stamp_dir}/${name}-${step}-impl.cmake)
endif()
# Wrap the command in a script to log output to files.
set(script ${stamp_dir}/${name}-${step}.cmake)
set(logbase ${stamp_dir}/${name}-${step})
file(WRITE ${script} "
${code_cygpath_make}
set(command \"${command}\")
execute_process(
COMMAND \${command}
RESULT_VARIABLE result
OUTPUT_FILE \"${logbase}-out.log\"
ERROR_FILE \"${logbase}-err.log\"
)
if(result)
set(msg \"Command failed: \${result}\\n\")
foreach(arg IN LISTS command)
set(msg \"\${msg} '\${arg}'\")
endforeach(arg)
set(msg \"\${msg}\\nSee also\\n ${logbase}-*.log\\n\")
message(FATAL_ERROR \"\${msg}\")
else()
set(msg \"${name} ${step} command succeeded. See also ${logbase}-*.log\\n\")
message(STATUS \"\${msg}\")
endif()
")
set(command ${CMAKE_COMMAND} ${make} ${config} -P ${script})
set(${cmd_var} "${command}" PARENT_SCOPE)
endfunction(_ep_write_log_script)
# This module used to use "/${CMAKE_CFG_INTDIR}" directly and produced
# makefiles with "/./" in paths for custom command dependencies. Which
# resulted in problems with parallel make -j invocations.
#
# This function was added so that the suffix (search below for ${cfgdir}) is
# only set to "/${CMAKE_CFG_INTDIR}" when ${CMAKE_CFG_INTDIR} is not going to
# be "." (multi-configuration build systems like Visual Studio and Xcode...)
#
function(_ep_get_configuration_subdir_suffix suffix_var)
set(suffix "")
if(CMAKE_CONFIGURATION_TYPES)
set(suffix "/${CMAKE_CFG_INTDIR}")
endif()
set(${suffix_var} "${suffix}" PARENT_SCOPE)
endfunction(_ep_get_configuration_subdir_suffix)
function(ExternalProject_Add_Step name step)
set(cmf_dir ${CMAKE_CURRENT_BINARY_DIR}/CMakeFiles)
ExternalProject_Get_Property(${name} stamp_dir)
_ep_get_configuration_subdir_suffix(cfgdir)
add_custom_command(APPEND
OUTPUT ${cmf_dir}${cfgdir}/${name}-complete
DEPENDS ${stamp_dir}${cfgdir}/${name}-${step}
)
_ep_parse_arguments(ExternalProject_Add_Step
${name} _EP_${step}_ "${ARGN}")
# Steps depending on this step.
get_property(dependers TARGET ${name} PROPERTY _EP_${step}_DEPENDERS)
foreach(depender IN LISTS dependers)
add_custom_command(APPEND
OUTPUT ${stamp_dir}${cfgdir}/${name}-${depender}
DEPENDS ${stamp_dir}${cfgdir}/${name}-${step}
)
endforeach()
# Dependencies on files.
get_property(depends TARGET ${name} PROPERTY _EP_${step}_DEPENDS)
# Dependencies on steps.
get_property(dependees TARGET ${name} PROPERTY _EP_${step}_DEPENDEES)
foreach(dependee IN LISTS dependees)
list(APPEND depends ${stamp_dir}${cfgdir}/${name}-${dependee})
endforeach()
# The command to run.
get_property(command TARGET ${name} PROPERTY _EP_${step}_COMMAND)
if(command)
set(comment "Performing ${step} step for '${name}'")
else()
set(comment "No ${step} step for '${name}'")
endif()
get_property(work_dir TARGET ${name} PROPERTY _EP_${step}_WORKING_DIRECTORY)
# Replace list separators.
get_property(sep TARGET ${name} PROPERTY _EP_LIST_SEPARATOR)
if(sep AND command)
string(REPLACE "${sep}" "\\;" command "${command}")
endif()
# Replace location tags.
foreach(var comment command work_dir)
if(${var})
foreach(dir SOURCE_DIR BINARY_DIR INSTALL_DIR TMP_DIR)
get_property(val TARGET ${name} PROPERTY _EP_${dir})
string(REPLACE "<${dir}>" "${val}" ${var} "${${var}}")
endforeach()
endif()
endforeach()
# Custom comment?
get_property(comment_set TARGET ${name} PROPERTY _EP_${step}_COMMENT SET)
if(comment_set)
get_property(comment TARGET ${name} PROPERTY _EP_${step}_COMMENT)
endif()
# Run every time?
get_property(always TARGET ${name} PROPERTY _EP_${step}_ALWAYS)
if(always)
set_property(SOURCE ${stamp_dir}${cfgdir}/${name}-${step} PROPERTY SYMBOLIC 1)
set(touch)
else()
set(touch ${CMAKE_COMMAND} -E touch ${stamp_dir}${cfgdir}/${name}-${step})
endif()
# Wrap with log script?
get_property(log TARGET ${name} PROPERTY _EP_${step}_LOG)
if(command AND log)
_ep_write_log_script(${name} ${step} command)
endif()
add_custom_command(
OUTPUT ${stamp_dir}${cfgdir}/${name}-${step}
COMMENT ${comment}
COMMAND ${command}
COMMAND ${touch}
DEPENDS ${depends}
WORKING_DIRECTORY ${work_dir}
VERBATIM
)
endfunction(ExternalProject_Add_Step)
function(_ep_add_mkdir_command name)
ExternalProject_Get_Property(${name}
source_dir binary_dir install_dir stamp_dir download_dir tmp_dir)
_ep_get_configuration_subdir_suffix(cfgdir)
ExternalProject_Add_Step(${name} mkdir
COMMENT "Creating directories for '${name}'"
COMMAND ${CMAKE_COMMAND} -E make_directory ${source_dir}
COMMAND ${CMAKE_COMMAND} -E make_directory ${binary_dir}
COMMAND ${CMAKE_COMMAND} -E make_directory ${install_dir}
COMMAND ${CMAKE_COMMAND} -E make_directory ${tmp_dir}
COMMAND ${CMAKE_COMMAND} -E make_directory ${stamp_dir}${cfgdir}
COMMAND ${CMAKE_COMMAND} -E make_directory ${download_dir}
)
endfunction(_ep_add_mkdir_command)
function(_ep_get_git_version git_EXECUTABLE git_version_var)
if(git_EXECUTABLE)
execute_process(
COMMAND "${git_EXECUTABLE}" --version
OUTPUT_VARIABLE ov
OUTPUT_STRIP_TRAILING_WHITESPACE
)
string(REGEX REPLACE "^git version (.+)$" "\\1" version "${ov}")
set(${git_version_var} "${version}" PARENT_SCOPE)
endif()
endfunction()
function(_ep_is_dir_empty dir empty_var)
file(GLOB gr "${dir}/*")
if("${gr}" STREQUAL "")
set(${empty_var} 1 PARENT_SCOPE)
else()
set(${empty_var} 0 PARENT_SCOPE)
endif()
endfunction()
function(_ep_add_download_command name)
ExternalProject_Get_Property(${name} source_dir stamp_dir download_dir tmp_dir)
get_property(cmd_set TARGET ${name} PROPERTY _EP_DOWNLOAD_COMMAND SET)
get_property(cmd TARGET ${name} PROPERTY _EP_DOWNLOAD_COMMAND)
get_property(cvs_repository TARGET ${name} PROPERTY _EP_CVS_REPOSITORY)
get_property(svn_repository TARGET ${name} PROPERTY _EP_SVN_REPOSITORY)
get_property(git_repository TARGET ${name} PROPERTY _EP_GIT_REPOSITORY)
get_property(url TARGET ${name} PROPERTY _EP_URL)
# TODO: Perhaps file:// should be copied to download dir before extraction.
string(REGEX REPLACE "^file://" "" url "${url}")
set(depends)
set(comment)
set(work_dir)
if(cmd_set)
set(work_dir ${download_dir})
elseif(cvs_repository)
find_package(CVS)
if(NOT CVS_EXECUTABLE)
message(FATAL_ERROR "error: could not find cvs for checkout of ${name}")
endif()
get_target_property(cvs_module ${name} _EP_CVS_MODULE)
if(NOT cvs_module)
message(FATAL_ERROR "error: no CVS_MODULE")
endif()
get_property(cvs_tag TARGET ${name} PROPERTY _EP_CVS_TAG)
set(repository ${cvs_repository})
set(module ${cvs_module})
set(tag ${cvs_tag})
configure_file(
"${CMAKE_ROOT}/Modules/RepositoryInfo.txt.in"
"${stamp_dir}/${name}-cvsinfo.txt"
@ONLY
)
get_filename_component(src_name "${source_dir}" NAME)
get_filename_component(work_dir "${source_dir}" PATH)
set(comment "Performing download step (CVS checkout) for '${name}'")
set(cmd ${CVS_EXECUTABLE} -d ${cvs_repository} -q co ${cvs_tag} -d ${src_name} ${cvs_module})
list(APPEND depends ${stamp_dir}/${name}-cvsinfo.txt)
elseif(svn_repository)
find_package(Subversion)
if(NOT Subversion_SVN_EXECUTABLE)
message(FATAL_ERROR "error: could not find svn for checkout of ${name}")
endif()
get_property(svn_revision TARGET ${name} PROPERTY _EP_SVN_REVISION)
get_property(svn_username TARGET ${name} PROPERTY _EP_SVN_USERNAME)
get_property(svn_password TARGET ${name} PROPERTY _EP_SVN_PASSWORD)
set(repository "${svn_repository} user=${svn_username} password=${svn_password}")
set(module)
set(tag ${svn_revision})
configure_file(
"${CMAKE_ROOT}/Modules/RepositoryInfo.txt.in"
"${stamp_dir}/${name}-svninfo.txt"
@ONLY
)
get_filename_component(src_name "${source_dir}" NAME)
get_filename_component(work_dir "${source_dir}" PATH)
set(comment "Performing download step (SVN checkout) for '${name}'")
set(cmd ${Subversion_SVN_EXECUTABLE} co ${svn_repository} ${svn_revision}
--username=${svn_username} --password=${svn_password} ${src_name})
list(APPEND depends ${stamp_dir}/${name}-svninfo.txt)
elseif(git_repository)
find_package(Git)
if(NOT GIT_EXECUTABLE)
message(FATAL_ERROR "error: could not find git for clone of ${name}")
endif()
# The git submodule update '--recursive' flag requires git >= v1.6.5
#
_ep_get_git_version("${GIT_EXECUTABLE}" git_version)
if(git_version VERSION_LESS 1.6.5)
message(FATAL_ERROR "error: git version 1.6.5 or later required for 'git submodule update --recursive': git_version='${git_version}'")
endif()
get_property(git_tag TARGET ${name} PROPERTY _EP_GIT_TAG)
if(NOT git_tag)
set(git_tag "master")
endif()
set(repository ${git_repository})
set(module)
set(tag ${git_tag})
configure_file(
"${CMAKE_ROOT}/Modules/RepositoryInfo.txt.in"
"${stamp_dir}/${name}-gitinfo.txt"
@ONLY
)
get_filename_component(src_name "${source_dir}" NAME)
get_filename_component(work_dir "${source_dir}" PATH)
# Since git clone doesn't succeed if the non-empty source_dir exists,
# create a cmake script to invoke as download command.
# The script will delete the source directory and then call git clone.
#
_ep_write_gitclone_script(${tmp_dir}/${name}-gitclone.cmake ${source_dir}
${GIT_EXECUTABLE} ${git_repository} ${git_tag} ${src_name} ${work_dir}
)
set(comment "Performing download step (git clone) for '${name}'")
set(cmd ${CMAKE_COMMAND} -P ${tmp_dir}/${name}-gitclone.cmake)
list(APPEND depends ${stamp_dir}/${name}-gitinfo.txt)
elseif(url)
get_filename_component(work_dir "${source_dir}" PATH)
get_property(md5 TARGET ${name} PROPERTY _EP_URL_MD5)
set(repository "external project URL")
set(module "${url}")
set(tag "${md5}")
configure_file(
"${CMAKE_ROOT}/Modules/RepositoryInfo.txt.in"
"${stamp_dir}/${name}-urlinfo.txt"
@ONLY
)
list(APPEND depends ${stamp_dir}/${name}-urlinfo.txt)
if(IS_DIRECTORY "${url}")
get_filename_component(abs_dir "${url}" ABSOLUTE)
set(comment "Performing download step (DIR copy) for '${name}'")
set(cmd ${CMAKE_COMMAND} -E remove_directory ${source_dir}
COMMAND ${CMAKE_COMMAND} -E copy_directory ${abs_dir} ${source_dir})
else()
if("${url}" MATCHES "^[a-z]+://")
# TODO: Should download and extraction be different steps?
string(REGEX MATCH "[^/]*$" fname "${url}")
if(NOT "${fname}" MATCHES "\\.(bz2|tar|tgz|tar\\.gz|zip)$")
message(FATAL_ERROR "Could not extract tarball filename from url:\n ${url}")
endif()
set(file ${download_dir}/${fname})
get_property(timeout TARGET ${name} PROPERTY _EP_TIMEOUT)
_ep_write_downloadfile_script("${stamp_dir}/download-${name}.cmake" "${url}" "${file}" "${timeout}" "${md5}")
set(cmd ${CMAKE_COMMAND} -P ${stamp_dir}/download-${name}.cmake
COMMAND)
set(comment "Performing download step (download, verify and extract) for '${name}'")
else()
set(file "${url}")
set(comment "Performing download step (verify and extract) for '${name}'")
endif()
_ep_write_verifyfile_script("${stamp_dir}/verify-${name}.cmake" "${file}" "${md5}")
list(APPEND cmd ${CMAKE_COMMAND} -P ${stamp_dir}/verify-${name}.cmake)
_ep_write_extractfile_script("${stamp_dir}/extract-${name}.cmake" "${name}" "${file}" "${source_dir}")
list(APPEND cmd ${CMAKE_COMMAND} -P ${stamp_dir}/extract-${name}.cmake)
endif()
else()
_ep_is_dir_empty("${source_dir}" empty)
if(${empty})
message(SEND_ERROR "error: no download info for '${name}' -- please specify existing/non-empty SOURCE_DIR or one of URL, CVS_REPOSITORY and CVS_MODULE, SVN_REPOSITORY, GIT_REPOSITORY or DOWNLOAD_COMMAND")
endif()
endif()
get_property(log TARGET ${name} PROPERTY _EP_LOG_DOWNLOAD)
if(log)
set(log LOG 1)
else()
set(log "")
endif()
ExternalProject_Add_Step(${name} download
COMMENT ${comment}
COMMAND ${cmd}
WORKING_DIRECTORY ${work_dir}
DEPENDS ${depends}
DEPENDEES mkdir
${log}
)
endfunction(_ep_add_download_command)
function(_ep_add_update_command name)
ExternalProject_Get_Property(${name} source_dir)
get_property(cmd_set TARGET ${name} PROPERTY _EP_UPDATE_COMMAND SET)
get_property(cmd TARGET ${name} PROPERTY _EP_UPDATE_COMMAND)
get_property(cvs_repository TARGET ${name} PROPERTY _EP_CVS_REPOSITORY)
get_property(svn_repository TARGET ${name} PROPERTY _EP_SVN_REPOSITORY)
get_property(git_repository TARGET ${name} PROPERTY _EP_GIT_REPOSITORY)
set(work_dir)
set(comment)
set(always)
if(cmd_set)
set(work_dir ${source_dir})
elseif(cvs_repository)
if(NOT CVS_EXECUTABLE)
message(FATAL_ERROR "error: could not find cvs for update of ${name}")
endif()
set(work_dir ${source_dir})
set(comment "Performing update step (CVS update) for '${name}'")
get_property(cvs_tag TARGET ${name} PROPERTY _EP_CVS_TAG)
set(cmd ${CVS_EXECUTABLE} -d ${cvs_repository} -q up -dP ${cvs_tag})
set(always 1)
elseif(svn_repository)
if(NOT Subversion_SVN_EXECUTABLE)
message(FATAL_ERROR "error: could not find svn for update of ${name}")
endif()
set(work_dir ${source_dir})
set(comment "Performing update step (SVN update) for '${name}'")
get_property(svn_revision TARGET ${name} PROPERTY _EP_SVN_REVISION)
get_property(svn_username TARGET ${name} PROPERTY _EP_SVN_USERNAME)
get_property(svn_password TARGET ${name} PROPERTY _EP_SVN_PASSWORD)
set(cmd ${Subversion_SVN_EXECUTABLE} up ${svn_revision}
--username=${svn_username} --password=${svn_password})
set(always 1)
elseif(git_repository)
if(NOT GIT_EXECUTABLE)
message(FATAL_ERROR "error: could not find git for fetch of ${name}")
endif()
set(work_dir ${source_dir})
set(comment "Performing update step (git fetch) for '${name}'")
get_property(git_tag TARGET ${name} PROPERTY _EP_GIT_TAG)
if(NOT git_tag)
set(git_tag "master")
endif()
set(cmd ${GIT_EXECUTABLE} fetch
COMMAND ${GIT_EXECUTABLE} checkout ${git_tag}
COMMAND ${GIT_EXECUTABLE} submodule update --recursive
)
set(always 1)
endif()
get_property(log TARGET ${name} PROPERTY _EP_LOG_UPDATE)
if(log)
set(log LOG 1)
else()
set(log "")
endif()
ExternalProject_Add_Step(${name} update
COMMENT ${comment}
COMMAND ${cmd}
ALWAYS ${always}
WORKING_DIRECTORY ${work_dir}
DEPENDEES download
${log}
)
endfunction(_ep_add_update_command)
function(_ep_add_patch_command name)
ExternalProject_Get_Property(${name} source_dir)
get_property(cmd_set TARGET ${name} PROPERTY _EP_PATCH_COMMAND SET)
get_property(cmd TARGET ${name} PROPERTY _EP_PATCH_COMMAND)
set(work_dir)
if(cmd_set)
set(work_dir ${source_dir})
endif()
ExternalProject_Add_Step(${name} patch
COMMAND ${cmd}
WORKING_DIRECTORY ${work_dir}
DEPENDEES download
)
endfunction(_ep_add_patch_command)
# TODO: Make sure external projects use the proper compiler
function(_ep_add_configure_command name)
ExternalProject_Get_Property(${name} source_dir binary_dir tmp_dir)
_ep_get_configuration_subdir_suffix(cfgdir)
# Depend on other external projects (file-level).
set(file_deps)
get_property(deps TARGET ${name} PROPERTY _EP_DEPENDS)
foreach(dep IN LISTS deps)
get_property(dep_stamp_dir TARGET ${dep} PROPERTY _EP_STAMP_DIR)
list(APPEND file_deps ${dep_stamp_dir}${cfgdir}/${dep}-done)
endforeach()
get_property(cmd_set TARGET ${name} PROPERTY _EP_CONFIGURE_COMMAND SET)
if(cmd_set)
get_property(cmd TARGET ${name} PROPERTY _EP_CONFIGURE_COMMAND)
else()
get_target_property(cmake_command ${name} _EP_CMAKE_COMMAND)
if(cmake_command)
set(cmd "${cmake_command}")
else()
set(cmd "${CMAKE_COMMAND}")
endif()
get_property(cmake_args TARGET ${name} PROPERTY _EP_CMAKE_ARGS)
list(APPEND cmd ${cmake_args})
get_target_property(cmake_generator ${name} _EP_CMAKE_GENERATOR)
if(cmake_generator)
list(APPEND cmd "-G${cmake_generator}" "${source_dir}")
else()
list(APPEND cmd "-G${CMAKE_GENERATOR}" "${source_dir}")
endif()
endif()
# If anything about the configure command changes, (command itself, cmake
# used, cmake args or cmake generator) then re-run the configure step.
# Fixes issue http://public.kitware.com/Bug/view.php?id=10258
#
if(NOT EXISTS ${tmp_dir}/${name}-cfgcmd.txt.in)
file(WRITE ${tmp_dir}/${name}-cfgcmd.txt.in "cmd='@cmd@'\n")
endif()
configure_file(${tmp_dir}/${name}-cfgcmd.txt.in ${tmp_dir}/${name}-cfgcmd.txt)
list(APPEND file_deps ${tmp_dir}/${name}-cfgcmd.txt)
get_property(log TARGET ${name} PROPERTY _EP_LOG_CONFIGURE)
if(log)
set(log LOG 1)
else()
set(log "")
endif()
ExternalProject_Add_Step(${name} configure
COMMAND ${cmd}
WORKING_DIRECTORY ${binary_dir}
DEPENDEES update patch
DEPENDS ${file_deps}
${log}
)
endfunction(_ep_add_configure_command)
function(_ep_add_build_command name)
ExternalProject_Get_Property(${name} binary_dir)
get_property(cmd_set TARGET ${name} PROPERTY _EP_BUILD_COMMAND SET)
if(cmd_set)
get_property(cmd TARGET ${name} PROPERTY _EP_BUILD_COMMAND)
else()
_ep_get_build_command(${name} BUILD cmd)
endif()
get_property(log TARGET ${name} PROPERTY _EP_LOG_BUILD)
if(log)
set(log LOG 1)
else()
set(log "")
endif()
ExternalProject_Add_Step(${name} build
COMMAND ${cmd}
WORKING_DIRECTORY ${binary_dir}
DEPENDEES configure
${log}
)
endfunction(_ep_add_build_command)
function(_ep_add_install_command name)
ExternalProject_Get_Property(${name} binary_dir)
get_property(cmd_set TARGET ${name} PROPERTY _EP_INSTALL_COMMAND SET)
if(cmd_set)
get_property(cmd TARGET ${name} PROPERTY _EP_INSTALL_COMMAND)
else()
_ep_get_build_command(${name} INSTALL cmd)
endif()
get_property(log TARGET ${name} PROPERTY _EP_LOG_INSTALL)
if(log)
set(log LOG 1)
else()
set(log "")
endif()
ExternalProject_Add_Step(${name} install
COMMAND ${cmd}
WORKING_DIRECTORY ${binary_dir}
DEPENDEES build
${log}
)
endfunction(_ep_add_install_command)
function(_ep_add_test_command name)
ExternalProject_Get_Property(${name} binary_dir)
get_property(before TARGET ${name} PROPERTY _EP_TEST_BEFORE_INSTALL)
get_property(after TARGET ${name} PROPERTY _EP_TEST_AFTER_INSTALL)
get_property(cmd_set TARGET ${name} PROPERTY _EP_TEST_COMMAND SET)
# Only actually add the test step if one of the test related properties is
# explicitly set. (i.e. the test step is omitted unless requested...)
#
if(cmd_set OR before OR after)
if(cmd_set)
get_property(cmd TARGET ${name} PROPERTY _EP_TEST_COMMAND)
else()
_ep_get_build_command(${name} TEST cmd)
endif()
if(before)
set(dep_args DEPENDEES build DEPENDERS install)
else()
set(dep_args DEPENDEES install)
endif()
get_property(log TARGET ${name} PROPERTY _EP_LOG_TEST)
if(log)
set(log LOG 1)
else()
set(log "")
endif()
ExternalProject_Add_Step(${name} test
COMMAND ${cmd}
WORKING_DIRECTORY ${binary_dir}
${dep_args}
${log}
)
endif()
endfunction(_ep_add_test_command)
function(ExternalProject_Add name)
_ep_get_configuration_subdir_suffix(cfgdir)
# Add a custom target for the external project.
set(cmf_dir ${CMAKE_CURRENT_BINARY_DIR}/CMakeFiles)
add_custom_target(${name} ALL DEPENDS ${cmf_dir}${cfgdir}/${name}-complete)
set_property(TARGET ${name} PROPERTY _EP_IS_EXTERNAL_PROJECT 1)
_ep_parse_arguments(ExternalProject_Add ${name} _EP_ "${ARGN}")
_ep_set_directories(${name})
ExternalProject_Get_Property(${name} stamp_dir)
# The 'complete' step depends on all other steps and creates a
# 'done' mark. A dependent external project's 'configure' step
# depends on the 'done' mark so that it rebuilds when this project
# rebuilds. It is important that 'done' is not the output of any
# custom command so that CMake does not propagate build rules to
# other external project targets.
add_custom_command(
OUTPUT ${cmf_dir}${cfgdir}/${name}-complete
COMMENT "Completed '${name}'"
COMMAND ${CMAKE_COMMAND} -E make_directory ${cmf_dir}${cfgdir}
COMMAND ${CMAKE_COMMAND} -E touch ${cmf_dir}${cfgdir}/${name}-complete
COMMAND ${CMAKE_COMMAND} -E touch ${stamp_dir}${cfgdir}/${name}-done
DEPENDS ${stamp_dir}${cfgdir}/${name}-install
VERBATIM
)
# Depend on other external projects (target-level).
get_property(deps TARGET ${name} PROPERTY _EP_DEPENDS)
foreach(arg IN LISTS deps)
add_dependencies(${name} ${arg})
endforeach()
# Set up custom build steps based on the target properties.
# Each step depends on the previous one.
#
# The target depends on the output of the final step.
# (Already set up above in the DEPENDS of the add_custom_target command.)
#
_ep_add_mkdir_command(${name})
_ep_add_download_command(${name})
_ep_add_update_command(${name})
_ep_add_patch_command(${name})
_ep_add_configure_command(${name})
_ep_add_build_command(${name})
_ep_add_install_command(${name})
# Test is special in that it might depend on build, or it might depend
# on install.
#
_ep_add_test_command(${name})
endfunction(ExternalProject_Add)
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