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 11 12set(PACKAGE_VERSION "@PACKAGE_VERSION@") 13 14if(PACKAGE_VERSION VERSION_LESS PACKAGE_FIND_VERSION) 15 set(PACKAGE_VERSION_COMPATIBLE FALSE) 16else() 17 18 if("@PACKAGE_VERSION@" MATCHES "^([0-9]+)\\.") 19 set(CVF_VERSION_MAJOR "${CMAKE_MATCH_1}") 20 if(NOT CVF_VERSION_MAJOR VERSION_EQUAL 0) 21 string(REGEX REPLACE "^0+" "" CVF_VERSION_MAJOR "${CVF_VERSION_MAJOR}") 22 endif() 23 else() 24 set(CVF_VERSION_MAJOR "@PACKAGE_VERSION@") 25 endif() 26 27 if(PACKAGE_FIND_VERSION_RANGE) 28 # both endpoints of the range must have the expected major version 29 math (EXPR CVF_VERSION_MAJOR_NEXT "${CVF_VERSION_MAJOR} + 1") 30 if (NOT PACKAGE_FIND_VERSION_MIN_MAJOR STREQUAL CVF_VERSION_MAJOR 31 OR ((PACKAGE_FIND_VERSION_RANGE_MAX STREQUAL "INCLUDE" AND NOT PACKAGE_FIND_VERSION_MAX_MAJOR STREQUAL CVF_VERSION_MAJOR) 32 OR (PACKAGE_FIND_VERSION_RANGE_MAX STREQUAL "EXCLUDE" AND NOT PACKAGE_FIND_VERSION_MAX VERSION_LESS_EQUAL CVF_VERSION_MAJOR_NEXT))) 33 set(PACKAGE_VERSION_COMPATIBLE FALSE) 34 elseif(PACKAGE_FIND_VERSION_MIN_MAJOR STREQUAL CVF_VERSION_MAJOR 35 AND ((PACKAGE_FIND_VERSION_RANGE_MAX STREQUAL "INCLUDE" AND PACKAGE_VERSION VERSION_LESS_EQUAL PACKAGE_FIND_VERSION_MAX) 36 OR (PACKAGE_FIND_VERSION_RANGE_MAX STREQUAL "EXCLUDE" AND PACKAGE_VERSION VERSION_LESS PACKAGE_FIND_VERSION_MAX))) 37 set(PACKAGE_VERSION_COMPATIBLE TRUE) 38 else() 39 set(PACKAGE_VERSION_COMPATIBLE FALSE) 40 endif() 41 else() 42 if(PACKAGE_FIND_VERSION_MAJOR STREQUAL CVF_VERSION_MAJOR) 43 set(PACKAGE_VERSION_COMPATIBLE TRUE) 44 else() 45 set(PACKAGE_VERSION_COMPATIBLE FALSE) 46 endif() 47 48 if(PACKAGE_FIND_VERSION STREQUAL PACKAGE_VERSION) 49 set(PACKAGE_VERSION_EXACT TRUE) 50 endif() 51 endif() 52endif() 53 54 55# if the installed or the using project don't have CMAKE_SIZEOF_VOID_P set, ignore it: 56if("${CMAKE_SIZEOF_VOID_P}" STREQUAL "" OR "@SIZEOF_VOID_P@" STREQUAL "") 57 return() 58endif() 59 60# check that the installed version has the same 32/64bit-ness as the one which is currently searching: 61if(NOT CMAKE_SIZEOF_VOID_P STREQUAL "@SIZEOF_VOID_P@") 62 math(EXPR installedBits "@SIZEOF_VOID_P@ * 8") 63 set(PACKAGE_VERSION "${PACKAGE_VERSION} (${installedBits}bit)") 64 set(PACKAGE_VERSION_UNSUITABLE TRUE) 65endif() 66