BasicConfigVersion-SameMajorVersion.cmake.in 1.8 KB

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  1. # This is a basic version file for the Config-mode of find_package().
  2. # It is used by write_basic_package_version_file() as input file for configure_file()
  3. # to create a version-file which can be installed along a config.cmake file.
  4. #
  5. # The created file sets PACKAGE_VERSION_EXACT if the current version string and
  6. # the requested version string are exactly the same and it sets
  7. # PACKAGE_VERSION_COMPATIBLE if the current version is >= requested version,
  8. # but only if the requested major version is the same as the current one.
  9. # The variable CVF_VERSION must be set before calling configure_file().
  10. set(PACKAGE_VERSION "@CVF_VERSION@")
  11. if(PACKAGE_VERSION VERSION_LESS PACKAGE_FIND_VERSION)
  12. set(PACKAGE_VERSION_COMPATIBLE FALSE)
  13. else()
  14. if("@CVF_VERSION@" MATCHES "^([0-9]+)\\.")
  15. set(CVF_VERSION_MAJOR "${CMAKE_MATCH_1}")
  16. else()
  17. set(CVF_VERSION_MAJOR "@CVF_VERSION@")
  18. endif()
  19. if(PACKAGE_FIND_VERSION_MAJOR STREQUAL CVF_VERSION_MAJOR)
  20. set(PACKAGE_VERSION_COMPATIBLE TRUE)
  21. else()
  22. set(PACKAGE_VERSION_COMPATIBLE FALSE)
  23. endif()
  24. if(PACKAGE_FIND_VERSION STREQUAL PACKAGE_VERSION)
  25. set(PACKAGE_VERSION_EXACT TRUE)
  26. endif()
  27. endif()
  28. # if the installed project requested no architecture check, don't perform the check
  29. if("@CVF_ARCH_INDEPENDENT@")
  30. return()
  31. endif()
  32. # if the installed or the using project don't have CMAKE_SIZEOF_VOID_P set, ignore it:
  33. if("${CMAKE_SIZEOF_VOID_P}" STREQUAL "" OR "@CMAKE_SIZEOF_VOID_P@" STREQUAL "")
  34. return()
  35. endif()
  36. # check that the installed version has the same 32/64bit-ness as the one which is currently searching:
  37. if(NOT CMAKE_SIZEOF_VOID_P STREQUAL "@CMAKE_SIZEOF_VOID_P@")
  38. math(EXPR installedBits "@CMAKE_SIZEOF_VOID_P@ * 8")
  39. set(PACKAGE_VERSION "${PACKAGE_VERSION} (${installedBits}bit)")
  40. set(PACKAGE_VERSION_UNSUITABLE TRUE)
  41. endif()