261 lines
11 KiB
CMake
261 lines
11 KiB
CMake
|
# FIND_PACKAGE_HANDLE_STANDARD_ARGS(<name> ... )
|
||
|
|
#
|
||
|
|
# This function is intended to be used in FindXXX.cmake modules files.
|
||
|
|
# It handles the REQUIRED, QUIET and version-related arguments to FIND_PACKAGE().
|
||
|
|
# It also sets the <UPPERCASED_NAME>_FOUND variable.
|
||
|
|
# The package is considered found if all variables <var1>... listed contain
|
||
|
|
# valid results, e.g. valid filepaths.
|
||
|
|
#
|
||
|
|
# There are two modes of this function. The first argument in both modes is
|
||
|
|
# the name of the Find-module where it is called (in original casing).
|
||
|
|
#
|
||
|
|
# The first simple mode looks like this:
|
||
|
|
# FIND_PACKAGE_HANDLE_STANDARD_ARGS(<name> (DEFAULT_MSG|"Custom failure message") <var1>...<varN> )
|
||
|
|
# If the variables <var1> to <varN> are all valid, then <UPPERCASED_NAME>_FOUND
|
||
|
|
# will be set to TRUE.
|
||
|
|
# If DEFAULT_MSG is given as second argument, then the function will generate
|
||
|
|
# itself useful success and error messages. You can also supply a custom error message
|
||
|
|
# for the failure case. This is not recommended.
|
||
|
|
#
|
||
|
|
# The second mode is more powerful and also supports version checking:
|
||
|
|
# FIND_PACKAGE_HANDLE_STANDARD_ARGS(NAME [REQUIRED_VARS <var1>...<varN>]
|
||
|
|
# [VERSION_VAR <versionvar>
|
||
|
|
# [CONFIG_MODE]
|
||
|
|
# [FAIL_MESSAGE "Custom failure message"] )
|
||
|
|
#
|
||
|
|
# As above, if <var1> through <varN> are all valid, <UPPERCASED_NAME>_FOUND
|
||
|
|
# will be set to TRUE.
|
||
|
|
# After REQUIRED_VARS the variables which are required for this package are listed.
|
||
|
|
# Following VERSION_VAR the name of the variable can be specified which holds
|
||
|
|
# the version of the package which has been found. If this is done, this version
|
||
|
|
# will be checked against the (potentially) specified required version used
|
||
|
|
# in the find_package() call. The EXACT keyword is also handled. The default
|
||
|
|
# messages include information about the required version and the version
|
||
|
|
# which has been actually found, both if the version is ok or not.
|
||
|
|
# Use the option CONFIG_MODE if your FindXXX.cmake module is a wrapper for
|
||
|
|
# a find_package(... NO_MODULE) call, in this case all the information
|
||
|
|
# provided by the config-mode of find_package() will be evaluated
|
||
|
|
# automatically.
|
||
|
|
# Via FAIL_MESSAGE a custom failure message can be specified, if this is not
|
||
|
|
# used, the default message will be displayed.
|
||
|
|
#
|
||
|
|
# Example for mode 1:
|
||
|
|
#
|
||
|
|
# FIND_PACKAGE_HANDLE_STANDARD_ARGS(LibXml2 DEFAULT_MSG LIBXML2_LIBRARY LIBXML2_INCLUDE_DIR)
|
||
|
|
#
|
||
|
|
# LibXml2 is considered to be found, if both LIBXML2_LIBRARY and
|
||
|
|
# LIBXML2_INCLUDE_DIR are valid. Then also LIBXML2_FOUND is set to TRUE.
|
||
|
|
# If it is not found and REQUIRED was used, it fails with FATAL_ERROR,
|
||
|
|
# independent whether QUIET was used or not.
|
||
|
|
# If it is found, success will be reported, including the content of <var1>.
|
||
|
|
# On repeated Cmake runs, the same message won't be printed again.
|
||
|
|
#
|
||
|
|
# Example for mode 2:
|
||
|
|
#
|
||
|
|
# FIND_PACKAGE_HANDLE_STANDARD_ARGS(BISON REQUIRED_VARS BISON_EXECUTABLE
|
||
|
|
# VERSION_VAR BISON_VERSION)
|
||
|
|
# In this case, BISON is considered to be found if the variable(s) listed
|
||
|
|
# after REQUIRED_VAR are all valid, i.e. BISON_EXECUTABLE in this case.
|
||
|
|
# Also the version of BISON will be checked by using the version contained
|
||
|
|
# in BISON_VERSION.
|
||
|
|
# Since no FAIL_MESSAGE is given, the default messages will be printed.
|
||
|
|
#
|
||
|
|
# Another example for mode 2:
|
||
|
|
#
|
||
|
|
# FIND_PACKAGE(Automoc4 QUIET NO_MODULE HINTS /opt/automoc4)
|
||
|
|
# FIND_PACKAGE_HANDLE_STANDARD_ARGS(Automoc4 CONFIG_MODE)
|
||
|
|
# In this case, FindAutmoc4.cmake wraps a call to FIND_PACKAGE(Automoc4 NO_MODULE)
|
||
|
|
# and adds an additional search directory for automoc4.
|
||
|
|
# The following FIND_PACKAGE_HANDLE_STANDARD_ARGS() call produces a proper
|
||
|
|
# success/error message.
|
||
|
|
|
||
|
|
#=============================================================================
|
||
|
|
# Copyright 2007-2009 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.)
|
||
|
|
|
||
|
|
INCLUDE(FindPackageMessage)
|
||
|
|
INCLUDE(CMakeParseArguments)
|
||
|
|
|
||
|
|
# internal helper macro
|
||
|
|
MACRO(_FPHSA_FAILURE_MESSAGE _msg)
|
||
|
|
IF (${_NAME}_FIND_REQUIRED)
|
||
|
|
MESSAGE(FATAL_ERROR "${_msg}")
|
||
|
|
ELSE (${_NAME}_FIND_REQUIRED)
|
||
|
|
IF (NOT ${_NAME}_FIND_QUIETLY)
|
||
|
|
MESSAGE(STATUS "${_msg}")
|
||
|
|
ENDIF (NOT ${_NAME}_FIND_QUIETLY)
|
||
|
|
ENDIF (${_NAME}_FIND_REQUIRED)
|
||
|
|
ENDMACRO(_FPHSA_FAILURE_MESSAGE _msg)
|
||
|
|
|
||
|
|
|
||
|
|
# internal helper macro to generate the failure message when used in CONFIG_MODE:
|
||
|
|
MACRO(_FPHSA_HANDLE_FAILURE_CONFIG_MODE)
|
||
|
|
# <name>_CONFIG is set, but FOUND is false, this means that some other of the REQUIRED_VARS was not found:
|
||
|
|
IF(${_NAME}_CONFIG)
|
||
|
|
_FPHSA_FAILURE_MESSAGE("${FPHSA_FAIL_MESSAGE}: missing: ${MISSING_VARS} (found ${${_NAME}_CONFIG} ${VERSION_MSG})")
|
||
|
|
ELSE(${_NAME}_CONFIG)
|
||
|
|
# If _CONSIDERED_CONFIGS is set, the config-file has been found, but no suitable version.
|
||
|
|
# List them all in the error message:
|
||
|
|
IF(${_NAME}_CONSIDERED_CONFIGS)
|
||
|
|
SET(configsText "")
|
||
|
|
LIST(LENGTH ${_NAME}_CONSIDERED_CONFIGS configsCount)
|
||
|
|
MATH(EXPR configsCount "${configsCount} - 1")
|
||
|
|
FOREACH(currentConfigIndex RANGE ${configsCount})
|
||
|
|
LIST(GET ${_NAME}_CONSIDERED_CONFIGS ${currentConfigIndex} filename)
|
||
|
|
LIST(GET ${_NAME}_CONSIDERED_VERSIONS ${currentConfigIndex} version)
|
||
|
|
SET(configsText "${configsText} ${filename} (version ${version})\n")
|
||
|
|
ENDFOREACH(currentConfigIndex)
|
||
|
|
_FPHSA_FAILURE_MESSAGE("${FPHSA_FAIL_MESSAGE} ${VERSION_MSG}, checked the following files:\n${configsText}")
|
||
|
|
|
||
|
|
ELSE(${_NAME}_CONSIDERED_CONFIGS)
|
||
|
|
# Simple case: No Config-file was found at all:
|
||
|
|
_FPHSA_FAILURE_MESSAGE("${FPHSA_FAIL_MESSAGE}: found neither ${_NAME}Config.cmake nor ${_NAME_LOWER}-config.cmake ${VERSION_MSG}")
|
||
|
|
ENDIF(${_NAME}_CONSIDERED_CONFIGS)
|
||
|
|
ENDIF(${_NAME}_CONFIG)
|
||
|
|
ENDMACRO(_FPHSA_HANDLE_FAILURE_CONFIG_MODE)
|
||
|
|
|
||
|
|
|
||
|
|
FUNCTION(FIND_PACKAGE_HANDLE_STANDARD_ARGS _NAME _FIRST_ARG)
|
||
|
|
|
||
|
|
# set up the arguments for CMAKE_PARSE_ARGUMENTS and check whether we are in
|
||
|
|
# new extended or in the "old" mode:
|
||
|
|
SET(options CONFIG_MODE)
|
||
|
|
SET(oneValueArgs FAIL_MESSAGE VERSION_VAR)
|
||
|
|
SET(multiValueArgs REQUIRED_VARS)
|
||
|
|
SET(_KEYWORDS_FOR_EXTENDED_MODE ${options} ${oneValueArgs} ${multiValueArgs} )
|
||
|
|
LIST(FIND _KEYWORDS_FOR_EXTENDED_MODE "${_FIRST_ARG}" INDEX)
|
||
|
|
|
||
|
|
IF(${INDEX} EQUAL -1)
|
||
|
|
SET(FPHSA_FAIL_MESSAGE ${_FIRST_ARG})
|
||
|
|
SET(FPHSA_REQUIRED_VARS ${ARGN})
|
||
|
|
SET(FPHSA_VERSION_VAR)
|
||
|
|
ELSE(${INDEX} EQUAL -1)
|
||
|
|
|
||
|
|
CMAKE_PARSE_ARGUMENTS(FPHSA "${options}" "${oneValueArgs}" "${multiValueArgs}" ${_FIRST_ARG} ${ARGN})
|
||
|
|
|
||
|
|
IF(FPHSA_UNPARSED_ARGUMENTS)
|
||
|
|
MESSAGE(FATAL_ERROR "Unknown keywords given to FIND_PACKAGE_HANDLE_STANDARD_ARGS(): \"${FPHSA_UNPARSED_ARGUMENTS}\"")
|
||
|
|
ENDIF(FPHSA_UNPARSED_ARGUMENTS)
|
||
|
|
|
||
|
|
IF(NOT FPHSA_FAIL_MESSAGE)
|
||
|
|
SET(FPHSA_FAIL_MESSAGE "DEFAULT_MSG")
|
||
|
|
ENDIF(NOT FPHSA_FAIL_MESSAGE)
|
||
|
|
ENDIF(${INDEX} EQUAL -1)
|
||
|
|
|
||
|
|
# now that we collected all arguments, process them
|
||
|
|
|
||
|
|
IF("${FPHSA_FAIL_MESSAGE}" STREQUAL "DEFAULT_MSG")
|
||
|
|
SET(FPHSA_FAIL_MESSAGE "Could NOT find ${_NAME}")
|
||
|
|
ENDIF("${FPHSA_FAIL_MESSAGE}" STREQUAL "DEFAULT_MSG")
|
||
|
|
|
||
|
|
# In config-mode, we rely on the variable <package>_CONFIG, which is set by find_package()
|
||
|
|
# when it successfully found the config-file, including version checking:
|
||
|
|
IF(FPHSA_CONFIG_MODE)
|
||
|
|
LIST(INSERT FPHSA_REQUIRED_VARS 0 ${_NAME}_CONFIG)
|
||
|
|
LIST(REMOVE_DUPLICATES FPHSA_REQUIRED_VARS)
|
||
|
|
SET(FPHSA_VERSION_VAR ${_NAME}_VERSION)
|
||
|
|
ENDIF(FPHSA_CONFIG_MODE)
|
||
|
|
|
||
|
|
IF(NOT FPHSA_REQUIRED_VARS)
|
||
|
|
MESSAGE(FATAL_ERROR "No REQUIRED_VARS specified for FIND_PACKAGE_HANDLE_STANDARD_ARGS()")
|
||
|
|
ENDIF(NOT FPHSA_REQUIRED_VARS)
|
||
|
|
|
||
|
|
LIST(GET FPHSA_REQUIRED_VARS 0 _FIRST_REQUIRED_VAR)
|
||
|
|
|
||
|
|
STRING(TOUPPER ${_NAME} _NAME_UPPER)
|
||
|
|
STRING(TOLOWER ${_NAME} _NAME_LOWER)
|
||
|
|
|
||
|
|
# collect all variables which were not found, so they can be printed, so the
|
||
|
|
# user knows better what went wrong (#6375)
|
||
|
|
SET(MISSING_VARS "")
|
||
|
|
SET(DETAILS "")
|
||
|
|
SET(${_NAME_UPPER}_FOUND TRUE)
|
||
|
|
# check if all passed variables are valid
|
||
|
|
FOREACH(_CURRENT_VAR ${FPHSA_REQUIRED_VARS})
|
||
|
|
IF(NOT ${_CURRENT_VAR})
|
||
|
|
SET(${_NAME_UPPER}_FOUND FALSE)
|
||
|
|
SET(MISSING_VARS "${MISSING_VARS} ${_CURRENT_VAR}")
|
||
|
|
ELSE(NOT ${_CURRENT_VAR})
|
||
|
|
SET(DETAILS "${DETAILS}[${${_CURRENT_VAR}}]")
|
||
|
|
ENDIF(NOT ${_CURRENT_VAR})
|
||
|
|
ENDFOREACH(_CURRENT_VAR)
|
||
|
|
|
||
|
|
|
||
|
|
# version handling:
|
||
|
|
SET(VERSION_MSG "")
|
||
|
|
SET(VERSION_OK TRUE)
|
||
|
|
SET(VERSION ${${FPHSA_VERSION_VAR}} )
|
||
|
|
IF (${_NAME}_FIND_VERSION)
|
||
|
|
|
||
|
|
IF(VERSION)
|
||
|
|
|
||
|
|
IF(${_NAME}_FIND_VERSION_EXACT) # exact version required
|
||
|
|
IF (NOT "${${_NAME}_FIND_VERSION}" VERSION_EQUAL "${VERSION}")
|
||
|
|
SET(VERSION_MSG "Found unsuitable version \"${VERSION}\", but required is exact version \"${${_NAME}_FIND_VERSION}\"")
|
||
|
|
SET(VERSION_OK FALSE)
|
||
|
|
ELSE (NOT "${${_NAME}_FIND_VERSION}" VERSION_EQUAL "${VERSION}")
|
||
|
|
SET(VERSION_MSG "(found suitable exact version \"${VERSION}\")")
|
||
|
|
ENDIF (NOT "${${_NAME}_FIND_VERSION}" VERSION_EQUAL "${VERSION}")
|
||
|
|
|
||
|
|
ELSE(${_NAME}_FIND_VERSION_EXACT) # minimum version specified:
|
||
|
|
IF ("${${_NAME}_FIND_VERSION}" VERSION_GREATER "${VERSION}")
|
||
|
|
SET(VERSION_MSG "Found unsuitable version \"${VERSION}\", but required is at least \"${${_NAME}_FIND_VERSION}\"")
|
||
|
|
SET(VERSION_OK FALSE)
|
||
|
|
ELSE ("${${_NAME}_FIND_VERSION}" VERSION_GREATER "${VERSION}")
|
||
|
|
SET(VERSION_MSG "(found suitable version \"${VERSION}\", required is \"${${_NAME}_FIND_VERSION}\")")
|
||
|
|
ENDIF ("${${_NAME}_FIND_VERSION}" VERSION_GREATER "${VERSION}")
|
||
|
|
ENDIF(${_NAME}_FIND_VERSION_EXACT)
|
||
|
|
|
||
|
|
ELSE(VERSION)
|
||
|
|
|
||
|
|
# if the package was not found, but a version was given, add that to the output:
|
||
|
|
IF(${_NAME}_FIND_VERSION_EXACT)
|
||
|
|
SET(VERSION_MSG "(Required is exact version \"${${_NAME}_FIND_VERSION}\")")
|
||
|
|
ELSE(${_NAME}_FIND_VERSION_EXACT)
|
||
|
|
SET(VERSION_MSG "(Required is at least version \"${${_NAME}_FIND_VERSION}\")")
|
||
|
|
ENDIF(${_NAME}_FIND_VERSION_EXACT)
|
||
|
|
|
||
|
|
ENDIF(VERSION)
|
||
|
|
ELSE (${_NAME}_FIND_VERSION)
|
||
|
|
IF(VERSION)
|
||
|
|
SET(VERSION_MSG "(found version \"${VERSION}\")")
|
||
|
|
ENDIF(VERSION)
|
||
|
|
ENDIF (${_NAME}_FIND_VERSION)
|
||
|
|
|
||
|
|
IF(VERSION_OK)
|
||
|
|
SET(DETAILS "${DETAILS}[v${VERSION}(${${_NAME}_FIND_VERSION})]")
|
||
|
|
ELSE(VERSION_OK)
|
||
|
|
SET(${_NAME_UPPER}_FOUND FALSE)
|
||
|
|
ENDIF(VERSION_OK)
|
||
|
|
|
||
|
|
|
||
|
|
# print the result:
|
||
|
|
IF (${_NAME_UPPER}_FOUND)
|
||
|
|
FIND_PACKAGE_MESSAGE(${_NAME} "Found ${_NAME}: ${${_FIRST_REQUIRED_VAR}} ${VERSION_MSG}" "${DETAILS}")
|
||
|
|
ELSE (${_NAME_UPPER}_FOUND)
|
||
|
|
|
||
|
|
IF(FPHSA_CONFIG_MODE)
|
||
|
|
_FPHSA_HANDLE_FAILURE_CONFIG_MODE()
|
||
|
|
ELSE(FPHSA_CONFIG_MODE)
|
||
|
|
IF(NOT VERSION_OK)
|
||
|
|
_FPHSA_FAILURE_MESSAGE("${FPHSA_FAIL_MESSAGE}: ${VERSION_MSG} (found ${${_FIRST_REQUIRED_VAR}})")
|
||
|
|
ELSE(NOT VERSION_OK)
|
||
|
|
_FPHSA_FAILURE_MESSAGE("${FPHSA_FAIL_MESSAGE} (missing: ${MISSING_VARS}) ${VERSION_MSG}")
|
||
|
|
ENDIF(NOT VERSION_OK)
|
||
|
|
ENDIF(FPHSA_CONFIG_MODE)
|
||
|
|
|
||
|
|
ENDIF (${_NAME_UPPER}_FOUND)
|
||
|
|
|
||
|
|
SET(${_NAME_UPPER}_FOUND ${${_NAME_UPPER}_FOUND} PARENT_SCOPE)
|
||
|
|
|
||
|
|
ENDFUNCTION(FIND_PACKAGE_HANDLE_STANDARD_ARGS _FIRST_ARG)
|