CMake/Modules/BasicConfigVersion-SameMinorVersion.cmake.in
2019-05-14 15:26:46 -04:00

56 lines
1.9 KiB
CMake

# This is a basic version file for the Config-mode of find_package().
# It is used by write_basic_package_version_file() as input file for configure_file()
# to create a version-file which can be installed along a config.cmake file.
#
# The created file sets PACKAGE_VERSION_EXACT if the current version string and
# the requested version string are exactly the same and it sets
# PACKAGE_VERSION_COMPATIBLE if the current version is >= requested version,
# but only if the requested major and minor versions are the same as the current
# one.
# The variable CVF_VERSION must be set before calling configure_file().
set(PACKAGE_VERSION "@CVF_VERSION@")
if(PACKAGE_VERSION VERSION_LESS PACKAGE_FIND_VERSION)
set(PACKAGE_VERSION_COMPATIBLE FALSE)
else()
if("@CVF_VERSION@" MATCHES "^([0-9]+)\\.([0-9]+)")
set(CVF_VERSION_MAJOR "${CMAKE_MATCH_1}")
set(CVF_VERSION_MINOR "${CMAKE_MATCH_2}")
else()
set(CVF_VERSION_MAJOR "@CVF_VERSION@")
set(CVF_VERSION_MINOR "")
endif()
if((PACKAGE_FIND_VERSION_MAJOR STREQUAL CVF_VERSION_MAJOR) AND
(PACKAGE_FIND_VERSION_MINOR STREQUAL CVF_VERSION_MINOR))
set(PACKAGE_VERSION_COMPATIBLE TRUE)
else()
set(PACKAGE_VERSION_COMPATIBLE FALSE)
endif()
if(PACKAGE_FIND_VERSION STREQUAL PACKAGE_VERSION)
set(PACKAGE_VERSION_EXACT TRUE)
endif()
endif()
# if the installed project requested no architecture check, don't perform the check
if("@CVF_ARCH_INDEPENDENT@")
return()
endif()
# if the installed or the using project don't have CMAKE_SIZEOF_VOID_P set, ignore it:
if("${CMAKE_SIZEOF_VOID_P}" STREQUAL "" OR "@CMAKE_SIZEOF_VOID_P@" STREQUAL "")
return()
endif()
# check that the installed version has the same 32/64bit-ness as the one which is currently searching:
if(NOT CMAKE_SIZEOF_VOID_P STREQUAL "@CMAKE_SIZEOF_VOID_P@")
math(EXPR installedBits "@CMAKE_SIZEOF_VOID_P@ * 8")
set(PACKAGE_VERSION "${PACKAGE_VERSION} (${installedBits}bit)")
set(PACKAGE_VERSION_UNSUITABLE TRUE)
endif()