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CMake/Modules/CMakeExportBuildSettings.cmake

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Drop old CMake "build settings" export/import The CMakeExportBuildSettings and CMakeImportBuildSettings modules used to export compiler paths and flags from one project and import them into another. The import process would force the settings on the including project. Forcing settings helped long ago when compiler ABIs changed frequently but is now just a nuisance. We've deemed the behavior harmful so this commit simply removes it. The modules and macros now error out if included or called from a project that requires CMake 2.8 or higher.
2009-09-08 23:55:41 +04:00
Merge in changes to CMake-2-8 RC 2
2009-10-02 01:21:28 +04:00
#=============================================================================
# Copyright 2002-2009 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 distributed this file outside of CMake, substitute the full
# License text for the above reference.)
Drop old CMake "build settings" export/import The CMakeExportBuildSettings and CMakeImportBuildSettings modules used to export compiler paths and flags from one project and import them into another. The import process would force the settings on the including project. Forcing settings helped long ago when compiler ABIs changed frequently but is now just a nuisance. We've deemed the behavior harmful so this commit simply removes it. The modules and macros now error out if included or called from a project that requires CMake 2.8 or higher.
2009-09-08 23:55:41 +04:00
# This module is purposely no longer documented. It does nothing useful.
IF(NOT "${CMAKE_MINIMUM_REQUIRED_VERSION}" VERSION_LESS 2.7)
MESSAGE(FATAL_ERROR
"The functionality of this module has been dropped as of CMake 2.8. "
"It was deemed harmful (confusing users by changing their compiler). "
"Please remove calls to the CMAKE_EXPORT_BUILD_SETTINGS macro and "
"stop including this module. "
"If this project generates any files for use by external projects, "
"remove any use of the CMakeImportBuildSettings module from them.")
ENDIF()
# This macro used to store build settings of a project in a file to be
# loaded by another project using CMAKE_IMPORT_BUILD_SETTINGS. Now it
# creates a file that refuses to load (with comment explaining why).
ENH: Adding CMAKE_EXPORT_BUILD_SETTINGS and CMAKE_IMPORT_BUILD_SETTINGS macro.
2002-12-05 17:46:30 +03:00
MACRO(CMAKE_EXPORT_BUILD_SETTINGS SETTINGS_FILE)
IF(${SETTINGS_FILE} MATCHES ".+")
CONFIGURE_FILE(${CMAKE_ROOT}/Modules/CMakeBuildSettings.cmake.in
${SETTINGS_FILE} @ONLY IMMEDIATE)
ELSE(${SETTINGS_FILE} MATCHES ".+")
MESSAGE(SEND_ERROR "CMAKE_EXPORT_BUILD_SETTINGS called with no argument.")
ENDIF(${SETTINGS_FILE} MATCHES ".+")
ENDMACRO(CMAKE_EXPORT_BUILD_SETTINGS)