blob: 561a0db61f87ae96f6aa7a6afe6eace6de0a38ea [file] [log] [blame]
Brad Bishope42b3e32020-01-15 22:08:42 -05001# 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
10set(PACKAGE_VERSION "@VERSION@")
11
12if(PACKAGE_VERSION VERSION_LESS PACKAGE_FIND_VERSION)
13 set(PACKAGE_VERSION_COMPATIBLE FALSE)
14else()
15 set(PACKAGE_VERSION_COMPATIBLE TRUE)
16 if(PACKAGE_FIND_VERSION STREQUAL PACKAGE_VERSION)
17 set(PACKAGE_VERSION_EXACT TRUE)
18 endif()
19endif()
20
21# if the installed or the using project don't have CMAKE_SIZEOF_VOID_P set, ignore it:
22if("${CMAKE_SIZEOF_VOID_P}" STREQUAL "" OR "8" STREQUAL "")
23 return()
24endif()
25
26# check that the installed version has the same 32/64bit-ness as the one which is currently searching:
27if(NOT CMAKE_SIZEOF_VOID_P STREQUAL "8")
28 math(EXPR installedBits "8 * 8")
29 set(PACKAGE_VERSION "${PACKAGE_VERSION} (${installedBits}bit)")
30 set(PACKAGE_VERSION_UNSUITABLE FALSE)
31endif()