48 lines
1.7 KiB
CMake
48 lines
1.7 KiB
CMake
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# This is a basic version file for the Config-mode of find_package().
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# It is used by write_basic_package_version_file() as input file for configure_file()
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# to create a version-file which can be installed along a config.cmake file.
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#
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# The created file sets PACKAGE_VERSION_EXACT if the current version string and
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# the requested version string are exactly the same and it sets
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# PACKAGE_VERSION_COMPATIBLE if the current version is equal to the requested version.
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# The tweak version component is ignored.
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# The variable CVF_VERSION must be set before calling configure_file().
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set(PACKAGE_VERSION "1.6.0")
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if("1.6.0" MATCHES "^([0-9]+\\.[0-9]+\\.[0-9]+)\\.") # strip the tweak version
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set(CVF_VERSION_NO_TWEAK "${CMAKE_MATCH_1}")
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else()
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set(CVF_VERSION_NO_TWEAK "1.6.0")
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endif()
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if(PACKAGE_FIND_VERSION MATCHES "^([0-9]+\\.[0-9]+\\.[0-9]+)\\.") # strip the tweak version
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set(REQUESTED_VERSION_NO_TWEAK "${CMAKE_MATCH_1}")
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else()
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set(REQUESTED_VERSION_NO_TWEAK "${PACKAGE_FIND_VERSION}")
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endif()
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if(REQUESTED_VERSION_NO_TWEAK STREQUAL CVF_VERSION_NO_TWEAK)
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set(PACKAGE_VERSION_COMPATIBLE TRUE)
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else()
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set(PACKAGE_VERSION_COMPATIBLE FALSE)
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endif()
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if(PACKAGE_FIND_VERSION STREQUAL PACKAGE_VERSION)
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set(PACKAGE_VERSION_EXACT TRUE)
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endif()
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# if the installed or the using project don't have CMAKE_SIZEOF_VOID_P set, ignore it:
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if("${CMAKE_SIZEOF_VOID_P}" STREQUAL "" OR "4" STREQUAL "")
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return()
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endif()
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# check that the installed version has the same 32/64bit-ness as the one which is currently searching:
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if(NOT CMAKE_SIZEOF_VOID_P STREQUAL "4")
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math(EXPR installedBits "4 * 8")
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set(PACKAGE_VERSION "${PACKAGE_VERSION} (${installedBits}bit)")
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set(PACKAGE_VERSION_UNSUITABLE TRUE)
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endif()
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