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Improve compatibility with old CMake versions
This commit is contained in:
Zbigniew Mandziejewicz
parent
d7fa6d318c
commit
60ccb43b14
@ -1,13 +1,15 @@
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cmake_minimum_required(VERSION 2.6 FATAL_ERROR)
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project(glm)
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set(GLM_VERSION "0.9.6")
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set(GLM_VERSION "0.9.7")
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list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake")
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include(GNUInstallDirs)
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include(CMakePackageConfigHelpers)
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enable_testing()
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list(APPEND CMAKE_MODULE_PATH "${PROJECT_SOURCE_DIR}/cmake")
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include(GNUInstallDirs)
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add_definitions(-D_CRT_SECURE_NO_WARNINGS)
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option(GLM_TEST_ENABLE "GLM test" OFF)
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@ -146,37 +148,36 @@ add_subdirectory(test)
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set(GLM_INSTALL_CONFIGDIR "${CMAKE_INSTALL_LIBDIR}/cmake/glm")
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install(DIRECTORY glm DESTINATION ${CMAKE_INSTALL_INCLUDEDIR})
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write_basic_package_version_file(
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"${CMAKE_CURRENT_BINARY_DIR}/glmVersion.cmake"
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VERSION ${GLM_VERSION}
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COMPATIBILITY AnyNewerVersion
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)
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# build tree package config
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configure_file(
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cmake/glmBuildConfig.cmake.in
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glmConfig.cmake
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@ONLY
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)
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# install tree package config
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configure_package_config_file(
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cmake/glmConfig.cmake.in
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${GLM_INSTALL_CONFIGDIR}/glmConfig.cmake
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INSTALL_DESTINATION ${GLM_INSTALL_CONFIGDIR}
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PATH_VARS CMAKE_INSTALL_INCLUDEDIR
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NO_CHECK_REQUIRED_COMPONENTS_MACRO
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)
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install(
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FILES
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"${CMAKE_CURRENT_BINARY_DIR}/${GLM_INSTALL_CONFIGDIR}/glmConfig.cmake"
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"${CMAKE_CURRENT_BINARY_DIR}/glmVersion.cmake"
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DESTINATION ${GLM_INSTALL_CONFIGDIR}
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)
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if (NOT CMAKE_VERSION VERSION_LESS "2.8.12")
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include(CMakePackageConfigHelpers)
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write_basic_package_version_file(
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"${CMAKE_CURRENT_BINARY_DIR}/glmVersion.cmake"
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VERSION ${GLM_VERSION}
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COMPATIBILITY AnyNewerVersion
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)
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# build tree package config
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configure_file(
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cmake/glmBuildConfig.cmake.in
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glmConfig.cmake
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COPYONLY
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)
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# install tree package config
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configure_package_config_file(
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cmake/glmConfig.cmake.in
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${GLM_INSTALL_CONFIGDIR}/glmConfig.cmake
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INSTALL_DESTINATION ${GLM_INSTALL_CONFIGDIR}
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PATH_VARS CMAKE_INSTALL_INCLUDEDIR
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NO_CHECK_REQUIRED_COMPONENTS_MACRO
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)
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install(
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FILES
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"${CMAKE_CURRENT_BINARY_DIR}/glmConfig.cmake"
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"${CMAKE_CURRENT_BINARY_DIR}/glmVersion.cmake"
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DESTINATION ${GLM_INSTALL_CONFIGDIR}
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)
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add_library(glm INTERFACE)
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target_include_directories(glm INTERFACE
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$<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>
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227
cmake/CMakePackageConfigHelpers.cmake
Normal file
227
cmake/CMakePackageConfigHelpers.cmake
Normal file
@ -0,0 +1,227 @@
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# - CONFIGURE_PACKAGE_CONFIG_FILE(), WRITE_BASIC_PACKAGE_VERSION_FILE()
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#
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# CONFIGURE_PACKAGE_CONFIG_FILE(<input> <output> INSTALL_DESTINATION <path>
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# [PATH_VARS <var1> <var2> ... <varN>]
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# [NO_SET_AND_CHECK_MACRO]
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# [NO_CHECK_REQUIRED_COMPONENTS_MACRO])
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#
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# CONFIGURE_PACKAGE_CONFIG_FILE() should be used instead of the plain
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# CONFIGURE_FILE() command when creating the <Name>Config.cmake or <Name>-config.cmake
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# file for installing a project or library. It helps making the resulting package
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# relocatable by avoiding hardcoded paths in the installed Config.cmake file.
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#
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# In a FooConfig.cmake file there may be code like this to make the
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# install destinations know to the using project:
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# set(FOO_INCLUDE_DIR "@CMAKE_INSTALL_FULL_INCLUDEDIR@" )
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# set(FOO_DATA_DIR "@CMAKE_INSTALL_PREFIX@/@RELATIVE_DATA_INSTALL_DIR@" )
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# set(FOO_ICONS_DIR "@CMAKE_INSTALL_PREFIX@/share/icons" )
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# ...logic to determine installedPrefix from the own location...
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# set(FOO_CONFIG_DIR "${installedPrefix}/@CONFIG_INSTALL_DIR@" )
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# All 4 options shown above are not sufficient, since the first 3 hardcode
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# the absolute directory locations, and the 4th case works only if the logic
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# to determine the installedPrefix is correct, and if CONFIG_INSTALL_DIR contains
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# a relative path, which in general cannot be guaranteed.
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# This has the effect that the resulting FooConfig.cmake file would work poorly
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# under Windows and OSX, where users are used to choose the install location
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# of a binary package at install time, independent from how CMAKE_INSTALL_PREFIX
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# was set at build/cmake time.
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#
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# Using CONFIGURE_PACKAGE_CONFIG_FILE() helps. If used correctly, it makes the
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# resulting FooConfig.cmake file relocatable.
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# Usage:
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# 1. write a FooConfig.cmake.in file as you are used to
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# 2. insert a line containing only the string "@PACKAGE_INIT@"
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# 3. instead of SET(FOO_DIR "@SOME_INSTALL_DIR@"), use SET(FOO_DIR "@PACKAGE_SOME_INSTALL_DIR@")
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# (this must be after the @PACKAGE_INIT@ line)
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# 4. instead of using the normal CONFIGURE_FILE(), use CONFIGURE_PACKAGE_CONFIG_FILE()
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#
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# The <input> and <output> arguments are the input and output file, the same way
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# as in CONFIGURE_FILE().
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#
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# The <path> given to INSTALL_DESTINATION must be the destination where the FooConfig.cmake
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# file will be installed to. This can either be a relative or absolute path, both work.
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#
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# The variables <var1> to <varN> given as PATH_VARS are the variables which contain
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# install destinations. For each of them the macro will create a helper variable
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# PACKAGE_<var...>. These helper variables must be used
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# in the FooConfig.cmake.in file for setting the installed location. They are calculated
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# by CONFIGURE_PACKAGE_CONFIG_FILE() so that they are always relative to the
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# installed location of the package. This works both for relative and also for absolute locations.
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# For absolute locations it works only if the absolute location is a subdirectory
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# of CMAKE_INSTALL_PREFIX.
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#
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# By default configure_package_config_file() also generates two helper macros,
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# set_and_check() and check_required_components() into the FooConfig.cmake file.
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#
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# set_and_check() should be used instead of the normal set()
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# command for setting directories and file locations. Additionally to setting the
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# variable it also checks that the referenced file or directory actually exists
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# and fails with a FATAL_ERROR otherwise. This makes sure that the created
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# FooConfig.cmake file does not contain wrong references.
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# When using the NO_SET_AND_CHECK_MACRO, this macro is not generated into the
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# FooConfig.cmake file.
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#
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# check_required_components(<package_name>) should be called at the end of the
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# FooConfig.cmake file if the package supports components.
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# This macro checks whether all requested, non-optional components have been found,
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# and if this is not the case, sets the Foo_FOUND variable to FALSE, so that the package
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# is considered to be not found.
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# It does that by testing the Foo_<Component>_FOUND variables for all requested
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# required components.
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# When using the NO_CHECK_REQUIRED_COMPONENTS option, this macro is not generated
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# into the FooConfig.cmake file.
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#
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# For an example see below the documentation for WRITE_BASIC_PACKAGE_VERSION_FILE().
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#
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#
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# WRITE_BASIC_PACKAGE_VERSION_FILE( filename VERSION major.minor.patch COMPATIBILITY (AnyNewerVersion|SameMajorVersion|ExactVersion) )
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#
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# Writes a file for use as <package>ConfigVersion.cmake file to <filename>.
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# See the documentation of FIND_PACKAGE() for details on this.
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# filename is the output filename, it should be in the build tree.
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# major.minor.patch is the version number of the project to be installed
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# The COMPATIBILITY mode AnyNewerVersion means that the installed package version
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# will be considered compatible if it is newer or exactly the same as the requested version.
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# This mode should be used for packages which are fully backward compatible,
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# also across major versions.
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# If SameMajorVersion is used instead, then the behaviour differs from AnyNewerVersion
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# in that the major version number must be the same as requested, e.g. version 2.0 will
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# not be considered compatible if 1.0 is requested.
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# This mode should be used for packages which guarantee backward compatibility within the
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# same major version.
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# If ExactVersion is used, then the package is only considered compatible if the requested
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# version matches exactly its own version number (not considering the tweak version).
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# For example, version 1.2.3 of a package is only considered compatible to requested version 1.2.3.
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# This mode is for packages without compatibility guarantees.
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# If your project has more elaborated version matching rules, you will need to write your
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# own custom ConfigVersion.cmake file instead of using this macro.
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#
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# Internally, this macro executes configure_file() to create the resulting
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# version file. Depending on the COMPATIBLITY, either the file
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# BasicConfigVersion-SameMajorVersion.cmake.in or BasicConfigVersion-AnyNewerVersion.cmake.in
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# is used. Please note that these two files are internal to CMake and you should
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# not call configure_file() on them yourself, but they can be used as starting
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# point to create more sophisticted custom ConfigVersion.cmake files.
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#
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#
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# Example using both configure_package_config_file() and write_basic_package_version_file():
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# CMakeLists.txt:
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# set(INCLUDE_INSTALL_DIR include/ ... CACHE )
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# set(LIB_INSTALL_DIR lib/ ... CACHE )
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# set(SYSCONFIG_INSTALL_DIR etc/foo/ ... CACHE )
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# ...
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# include(CMakePackageConfigHelpers)
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# configure_package_config_file(FooConfig.cmake.in ${CMAKE_CURRENT_BINARY_DIR}/FooConfig.cmake
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# INSTALL_DESTINATION ${LIB_INSTALL_DIR}/Foo/cmake
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# PATH_VARS INCLUDE_INSTALL_DIR SYSCONFIG_INSTALL_DIR)
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# write_basic_package_version_file(${CMAKE_CURRENT_BINARY_DIR}/FooConfigVersion.cmake
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# VERSION 1.2.3
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# COMPATIBILITY SameMajorVersion )
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# install(FILES ${CMAKE_CURRENT_BINARY_DIR}/FooConfig.cmake ${CMAKE_CURRENT_BINARY_DIR}/FooConfigVersion.cmake
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# DESTINATION ${LIB_INSTALL_DIR}/Foo/cmake )
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#
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# With a FooConfig.cmake.in:
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# set(FOO_VERSION x.y.z)
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# ...
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# @PACKAGE_INIT@
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# ...
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# set_and_check(FOO_INCLUDE_DIR "@PACKAGE_INCLUDE_INSTALL_DIR@")
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# set_and_check(FOO_SYSCONFIG_DIR "@PACKAGE_SYSCONFIG_INSTALL_DIR@")
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#
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# check_required_components(Foo)
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#=============================================================================
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# Copyright 2012 Alexander Neundorf <neundorf@kde.org>
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#
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# Distributed under the OSI-approved BSD License (the "License");
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# see accompanying file Copyright.txt for details.
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#
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# This software is distributed WITHOUT ANY WARRANTY; without even the
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# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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# See the License for more information.
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#=============================================================================
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# (To distribute this file outside of CMake, substitute the full
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# License text for the above reference.)
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include(CMakeParseArguments)
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include(WriteBasicConfigVersionFile)
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macro(WRITE_BASIC_PACKAGE_VERSION_FILE)
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write_basic_config_version_file(${ARGN})
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endmacro()
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function(CONFIGURE_PACKAGE_CONFIG_FILE _inputFile _outputFile)
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set(options NO_SET_AND_CHECK_MACRO NO_CHECK_REQUIRED_COMPONENTS_MACRO)
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set(oneValueArgs INSTALL_DESTINATION )
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set(multiValueArgs PATH_VARS )
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cmake_parse_arguments(CCF "${options}" "${oneValueArgs}" "${multiValueArgs}" ${ARGN})
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if(CCF_UNPARSED_ARGUMENTS)
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message(FATAL_ERROR "Unknown keywords given to CONFIGURE_PACKAGE_CONFIG_FILE(): \"${CCF_UNPARSED_ARGUMENTS}\"")
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endif()
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if(NOT CCF_INSTALL_DESTINATION)
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message(FATAL_ERROR "No INSTALL_DESTINATION given to CONFIGURE_PACKAGE_CONFIG_FILE()")
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endif()
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if(IS_ABSOLUTE "${CCF_INSTALL_DESTINATION}")
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set(absInstallDir "${CCF_INSTALL_DESTINATION}")
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else()
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set(absInstallDir "${CMAKE_INSTALL_PREFIX}/${CCF_INSTALL_DESTINATION}")
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endif()
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file(RELATIVE_PATH PACKAGE_RELATIVE_PATH "${absInstallDir}" "${CMAKE_INSTALL_PREFIX}" )
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foreach(var ${CCF_PATH_VARS})
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if(NOT DEFINED ${var})
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message(FATAL_ERROR "Variable ${var} does not exist")
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else()
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if(IS_ABSOLUTE "${${var}}")
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string(REPLACE "${CMAKE_INSTALL_PREFIX}" "\${PACKAGE_PREFIX_DIR}"
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PACKAGE_${var} "${${var}}")
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else()
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set(PACKAGE_${var} "\${PACKAGE_PREFIX_DIR}/${${var}}")
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endif()
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endif()
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endforeach()
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set(PACKAGE_INIT "
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####### Expanded from @PACKAGE_INIT@ by configure_package_config_file() #######
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get_filename_component(PACKAGE_PREFIX_DIR \"\${CMAKE_CURRENT_LIST_DIR}/${PACKAGE_RELATIVE_PATH}\" ABSOLUTE)
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")
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if(NOT CCF_NO_SET_AND_CHECK_MACRO)
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set(PACKAGE_INIT "${PACKAGE_INIT}
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macro(set_and_check _var _file)
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set(\${_var} \"\${_file}\")
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if(NOT EXISTS \"\${_file}\")
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message(FATAL_ERROR \"File or directory \${_file} referenced by variable \${_var} does not exist !\")
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endif()
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endmacro()
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")
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endif()
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if(NOT CCF_NO_CHECK_REQUIRED_COMPONENTS_MACRO)
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set(PACKAGE_INIT "${PACKAGE_INIT}
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macro(check_required_components _NAME)
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foreach(comp \${\${_NAME}_FIND_COMPONENTS})
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if(NOT \${_NAME}_\${comp}_FOUND)
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if(\${_NAME}_FIND_REQUIRED_\${comp})
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set(\${_NAME}_FOUND FALSE)
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endif()
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endif()
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endforeach(comp)
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endmacro()
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")
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endif()
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set(PACKAGE_INIT "${PACKAGE_INIT}
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####################################################################################")
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configure_file("${_inputFile}" "${_outputFile}" @ONLY)
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endfunction()
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@ -1 +1,6 @@
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include("${CMAKE_CURRENT_LIST_DIR}/glmTargets.cmake")
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set(GLM_VERSION "@GLM_VERSION@")
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set(GLM_INCLUDE_DIRS "@CMAKE_CURRENT_SOURCE_DIR@")
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if (NOT CMAKE_VERSION VERSION_LESS "2.8.12")
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include("${CMAKE_CURRENT_LIST_DIR}/glmTargets.cmake")
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endif()
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