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.
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().
12 set(PACKAGE_VERSION "0.0.1")
14 if("${PACKAGE_VERSION}" VERSION_LESS "${PACKAGE_FIND_VERSION}" )
15 set(PACKAGE_VERSION_COMPATIBLE FALSE)
18 if("0.0.1" MATCHES "^([0-9]+)\\.")
19 set(CVF_VERSION_MAJOR "${CMAKE_MATCH_1}")
21 set(CVF_VERSION_MAJOR "0.0.1")
24 if("${PACKAGE_FIND_VERSION_MAJOR}" STREQUAL "${CVF_VERSION_MAJOR}")
25 set(PACKAGE_VERSION_COMPATIBLE TRUE)
27 set(PACKAGE_VERSION_COMPATIBLE FALSE)
30 if( "${PACKAGE_FIND_VERSION}" STREQUAL "${PACKAGE_VERSION}")
31 set(PACKAGE_VERSION_EXACT TRUE)
36 # if the installed or the using project don't have CMAKE_SIZEOF_VOID_P set, ignore it:
37 if("${CMAKE_SIZEOF_VOID_P}" STREQUAL "" OR "8" STREQUAL "")
41 # check that the installed version has the same 32/64bit-ness as the one which is currently searching:
42 if(NOT "${CMAKE_SIZEOF_VOID_P}" STREQUAL "8")
43 math(EXPR installedBits "8 * 8")
44 set(PACKAGE_VERSION "${PACKAGE_VERSION} (${installedBits}bit)")
45 set(PACKAGE_VERSION_UNSUITABLE TRUE)