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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 # 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()
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