Brad Bishop | e42b3e3 | 2020-01-15 22:08:42 -0500 | [diff] [blame^] | 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 | # The variable CVF_VERSION must be set before calling configure_file(). |
| 9 | |
| 10 | set(PACKAGE_VERSION "@VERSION@") |
| 11 | |
| 12 | if(PACKAGE_VERSION VERSION_LESS PACKAGE_FIND_VERSION) |
| 13 | set(PACKAGE_VERSION_COMPATIBLE FALSE) |
| 14 | else() |
| 15 | set(PACKAGE_VERSION_COMPATIBLE TRUE) |
| 16 | if(PACKAGE_FIND_VERSION STREQUAL PACKAGE_VERSION) |
| 17 | set(PACKAGE_VERSION_EXACT TRUE) |
| 18 | endif() |
| 19 | endif() |
| 20 | |
| 21 | # if the installed or the using project don't have CMAKE_SIZEOF_VOID_P set, ignore it: |
| 22 | if("${CMAKE_SIZEOF_VOID_P}" STREQUAL "" OR "8" STREQUAL "") |
| 23 | return() |
| 24 | endif() |
| 25 | |
| 26 | # check that the installed version has the same 32/64bit-ness as the one which is currently searching: |
| 27 | if(NOT CMAKE_SIZEOF_VOID_P STREQUAL "8") |
| 28 | math(EXPR installedBits "8 * 8") |
| 29 | set(PACKAGE_VERSION "${PACKAGE_VERSION} (${installedBits}bit)") |
| 30 | set(PACKAGE_VERSION_UNSUITABLE FALSE) |
| 31 | endif() |