jpayne@68: # This is a basic version file for the Config-mode of find_package().
jpayne@68: # It is used by write_basic_package_version_file() as input file for configure_file()
jpayne@68: # to create a version-file which can be installed along a config.cmake file.
jpayne@68: #
jpayne@68: # The created file sets PACKAGE_VERSION_EXACT if the current version string and
jpayne@68: # the requested version string are exactly the same and it sets
jpayne@68: # PACKAGE_VERSION_COMPATIBLE if the current version is >= requested version,
jpayne@68: # but only if the requested major version is the same as the current one.
jpayne@68: # The variable CVF_VERSION must be set before calling configure_file().
jpayne@68: 
jpayne@68: 
jpayne@68: set(PACKAGE_VERSION "1.5.6")
jpayne@68: 
jpayne@68: if(PACKAGE_VERSION VERSION_LESS PACKAGE_FIND_VERSION)
jpayne@68:   set(PACKAGE_VERSION_COMPATIBLE FALSE)
jpayne@68: else()
jpayne@68: 
jpayne@68:   if("1.5.6" MATCHES "^([0-9]+)\\.")
jpayne@68:     set(CVF_VERSION_MAJOR "${CMAKE_MATCH_1}")
jpayne@68:     if(NOT CVF_VERSION_MAJOR VERSION_EQUAL 0)
jpayne@68:       string(REGEX REPLACE "^0+" "" CVF_VERSION_MAJOR "${CVF_VERSION_MAJOR}")
jpayne@68:     endif()
jpayne@68:   else()
jpayne@68:     set(CVF_VERSION_MAJOR "1.5.6")
jpayne@68:   endif()
jpayne@68: 
jpayne@68:   if(PACKAGE_FIND_VERSION_RANGE)
jpayne@68:     # both endpoints of the range must have the expected major version
jpayne@68:     math (EXPR CVF_VERSION_MAJOR_NEXT "${CVF_VERSION_MAJOR} + 1")
jpayne@68:     if (NOT PACKAGE_FIND_VERSION_MIN_MAJOR STREQUAL CVF_VERSION_MAJOR
jpayne@68:         OR ((PACKAGE_FIND_VERSION_RANGE_MAX STREQUAL "INCLUDE" AND NOT PACKAGE_FIND_VERSION_MAX_MAJOR STREQUAL CVF_VERSION_MAJOR)
jpayne@68:           OR (PACKAGE_FIND_VERSION_RANGE_MAX STREQUAL "EXCLUDE" AND NOT PACKAGE_FIND_VERSION_MAX VERSION_LESS_EQUAL CVF_VERSION_MAJOR_NEXT)))
jpayne@68:       set(PACKAGE_VERSION_COMPATIBLE FALSE)
jpayne@68:     elseif(PACKAGE_FIND_VERSION_MIN_MAJOR STREQUAL CVF_VERSION_MAJOR
jpayne@68:         AND ((PACKAGE_FIND_VERSION_RANGE_MAX STREQUAL "INCLUDE" AND PACKAGE_VERSION VERSION_LESS_EQUAL PACKAGE_FIND_VERSION_MAX)
jpayne@68:         OR (PACKAGE_FIND_VERSION_RANGE_MAX STREQUAL "EXCLUDE" AND PACKAGE_VERSION VERSION_LESS PACKAGE_FIND_VERSION_MAX)))
jpayne@68:       set(PACKAGE_VERSION_COMPATIBLE TRUE)
jpayne@68:     else()
jpayne@68:       set(PACKAGE_VERSION_COMPATIBLE FALSE)
jpayne@68:     endif()
jpayne@68:   else()
jpayne@68:     if(PACKAGE_FIND_VERSION_MAJOR STREQUAL CVF_VERSION_MAJOR)
jpayne@68:       set(PACKAGE_VERSION_COMPATIBLE TRUE)
jpayne@68:     else()
jpayne@68:       set(PACKAGE_VERSION_COMPATIBLE FALSE)
jpayne@68:     endif()
jpayne@68: 
jpayne@68:     if(PACKAGE_FIND_VERSION STREQUAL PACKAGE_VERSION)
jpayne@68:       set(PACKAGE_VERSION_EXACT TRUE)
jpayne@68:     endif()
jpayne@68:   endif()
jpayne@68: endif()
jpayne@68: 
jpayne@68: 
jpayne@68: # if the installed or the using project don't have CMAKE_SIZEOF_VOID_P set, ignore it:
jpayne@68: if("${CMAKE_SIZEOF_VOID_P}" STREQUAL "" OR "8" STREQUAL "")
jpayne@68:   return()
jpayne@68: endif()
jpayne@68: 
jpayne@68: # check that the installed version has the same 32/64bit-ness as the one which is currently searching:
jpayne@68: if(NOT CMAKE_SIZEOF_VOID_P STREQUAL "8")
jpayne@68:   math(EXPR installedBits "8 * 8")
jpayne@68:   set(PACKAGE_VERSION "${PACKAGE_VERSION} (${installedBits}bit)")
jpayne@68:   set(PACKAGE_VERSION_UNSUITABLE TRUE)
jpayne@68: endif()