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CMake

# This file defines the Feature Logging macros.
#
# MACRO_LOG_FEATURE(VAR FEATURE DESCRIPTION URL [REQUIRED [MIN_VERSION [COMMENTS]]])
# Logs the information so that it can be displayed at the end
# of the configure run
# VAR : TRUE or FALSE, indicating whether the feature is supported
# FEATURE: name of the feature, e.g. "libjpeg"
# DESCRIPTION: description what this feature provides
# URL: home page
# REQUIRED: TRUE or FALSE, indicating whether the featue is required
# MIN_VERSION: minimum version number. empty string if unneeded
# COMMENTS: More info you may want to provide. empty string if unnecessary
#
# MACRO_DISPLAY_FEATURE_LOG()
# Call this to display the collected results.
# Exits CMake with a FATAL error message if a required feature is missing
#
# Example:
#
# INCLUDE(MacroLogFeature)
#
# FIND_PACKAGE(JPEG)
# MACRO_LOG_FEATURE(JPEG_FOUND "libjpeg" "Support JPEG images" "http://www.ijg.org" TRUE "3.2a" "")
# ...
# MACRO_DISPLAY_FEATURE_LOG()
# Copyright (c) 2006, Alexander Neundorf, <neundorf@kde.org>
# Copyright (c) 2006, Allen Winter, <winter@kde.org>
# Copyright (c) 2009, Sebastian Trueg, <trueg@kde.org>
#
# Redistribution and use is allowed according to the terms of the BSD license.
# For details see the accompanying COPYING-CMAKE-SCRIPTS file.
IF (NOT _macroLogFeatureAlreadyIncluded)
SET(_file ${CMAKE_BINARY_DIR}/MissingRequirements.txt)
IF (EXISTS ${_file})
FILE(REMOVE ${_file})
ENDIF (EXISTS ${_file})
SET(_file ${CMAKE_BINARY_DIR}/EnabledFeatures.txt)
IF (EXISTS ${_file})
FILE(REMOVE ${_file})
ENDIF (EXISTS ${_file})
SET(_file ${CMAKE_BINARY_DIR}/DisabledFeatures.txt)
IF (EXISTS ${_file})
FILE(REMOVE ${_file})
ENDIF (EXISTS ${_file})
SET(_macroLogFeatureAlreadyIncluded TRUE)
INCLUDE(FeatureSummary)
ENDIF (NOT _macroLogFeatureAlreadyIncluded)
MACRO(MACRO_LOG_FEATURE _var _package _description _url ) # _required _minvers _comments)
STRING(TOUPPER "${ARGV4}" _required)
SET(_minvers "${ARGV5}")
SET(_comments "${ARGV6}")
IF (${_var})
SET(_LOGFILENAME ${CMAKE_BINARY_DIR}/EnabledFeatures.txt)
ELSE (${_var})
IF ("${_required}" STREQUAL "TRUE")
SET(_LOGFILENAME ${CMAKE_BINARY_DIR}/MissingRequirements.txt)
ELSE ("${_required}" STREQUAL "TRUE")
SET(_LOGFILENAME ${CMAKE_BINARY_DIR}/DisabledFeatures.txt)
ENDIF ("${_required}" STREQUAL "TRUE")
ENDIF (${_var})
SET(_logtext " * ${_package}")
IF (NOT ${_var})
IF (${_minvers} MATCHES ".*")
SET(_logtext "${_logtext} (${_minvers} or higher)")
ENDIF (${_minvers} MATCHES ".*")
SET(_logtext "${_logtext} <${_url}>\n ")
ELSE (NOT ${_var})
SET(_logtext "${_logtext} - ")
ENDIF (NOT ${_var})
SET(_logtext "${_logtext}${_description}")
IF (NOT ${_var})
IF (${_comments} MATCHES ".*")
SET(_logtext "${_logtext}\n ${_comments}")
ENDIF (${_comments} MATCHES ".*")
# SET(_logtext "${_logtext}\n") #double-space missing features?
ENDIF (NOT ${_var})
FILE(APPEND "${_LOGFILENAME}" "${_logtext}\n")
IF(COMMAND SET_PACKAGE_INFO) # in FeatureSummary.cmake since CMake 2.8.3
SET_PACKAGE_INFO("${_package}" "\"${_description}\"" "${_url}" "\"${_comments}\"")
ENDIF(COMMAND SET_PACKAGE_INFO)
ENDMACRO(MACRO_LOG_FEATURE)
MACRO(MACRO_DISPLAY_FEATURE_LOG)
IF(COMMAND FEATURE_SUMMARY) # in FeatureSummary.cmake since CMake 2.8.3
FEATURE_SUMMARY(FILENAME ${CMAKE_CURRENT_BINARY_DIR}/FindPackageLog.txt
WHAT ALL)
ENDIF(COMMAND FEATURE_SUMMARY)
SET(_missingFile ${CMAKE_BINARY_DIR}/MissingRequirements.txt)
SET(_enabledFile ${CMAKE_BINARY_DIR}/EnabledFeatures.txt)
SET(_disabledFile ${CMAKE_BINARY_DIR}/DisabledFeatures.txt)
IF (EXISTS ${_missingFile} OR EXISTS ${_enabledFile} OR EXISTS ${_disabledFile})
SET(_printSummary TRUE)
ENDIF (EXISTS ${_missingFile} OR EXISTS ${_enabledFile} OR EXISTS ${_disabledFile})
IF(_printSummary)
SET(_missingDeps 0)
IF (EXISTS ${_enabledFile})
FILE(READ ${_enabledFile} _enabled)
FILE(REMOVE ${_enabledFile})
SET(_summary "${_summary}\n-----------------------------------------------------------------------------\n-- The following external packages were located on your system.\n-- This installation will have the extra features provided by these packages.\n-----------------------------------------------------------------------------\n${_enabled}")
ENDIF (EXISTS ${_enabledFile})
IF (EXISTS ${_disabledFile})
SET(_missingDeps 1)
FILE(READ ${_disabledFile} _disabled)
FILE(REMOVE ${_disabledFile})
SET(_summary "${_summary}\n-----------------------------------------------------------------------------\n-- The following OPTIONAL packages could NOT be located on your system.\n-- Consider installing them to enable more features from this software.\n-----------------------------------------------------------------------------\n${_disabled}")
ENDIF (EXISTS ${_disabledFile})
IF (EXISTS ${_missingFile})
SET(_missingDeps 1)
FILE(READ ${_missingFile} _requirements)
SET(_summary "${_summary}\n-----------------------------------------------------------------------------\n-- The following REQUIRED packages could NOT be located on your system.\n-- You must install these packages before continuing.\n-----------------------------------------------------------------------------\n${_requirements}")
FILE(REMOVE ${_missingFile})
SET(_haveMissingReq 1)
ENDIF (EXISTS ${_missingFile})
IF (NOT ${_missingDeps})
SET(_summary "${_summary}\n-----------------------------------------------------------------------------\n-- Congratulations! All external packages have been found.")
ENDIF (NOT ${_missingDeps})
MESSAGE(${_summary})
MESSAGE("-----------------------------------------------------------------------------\n")
IF(_haveMissingReq)
MESSAGE(FATAL_ERROR "Exiting: Missing Requirements")
ENDIF(_haveMissingReq)
ENDIF(_printSummary)
ENDMACRO(MACRO_DISPLAY_FEATURE_LOG)