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set(min_ver 2.7.20090305)
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cmake_minimum_required(VERSION ${min_ver})
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if("${CMAKE_VERSION}" VERSION_LESS "${min_ver}")
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message(FATAL_ERROR
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"CMAKE_VERSION=[${CMAKE_VERSION}] is less than [${min_ver}]")
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else()
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message("CMAKE_VERSION=[${CMAKE_VERSION}] is not less than [${min_ver}]")
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endif()
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set(EQUALV "1 1")
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list(APPEND EQUALV "1.0 1")
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list(APPEND EQUALV "1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0 1")
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list(APPEND EQUALV "1.2.3.4.5.6.7 1.2.3.4.5.6.7")
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list(APPEND EQUALV "1.2.3.4.5.6.7.8.9 1.2.3.4.5.6.7.8.9")
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foreach(v IN LISTS EQUALV)
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string(REGEX MATCH "(.*) (.*)" _dummy "${v}")
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# modify any of the operands to see the negative check also works
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if("${CMAKE_MATCH_1}.2" VERSION_EQUAL CMAKE_MATCH_2)
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message(FATAL_ERROR "${CMAKE_MATCH_1}.2 is equal ${CMAKE_MATCH_2}?")
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else()
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message(STATUS "${CMAKE_MATCH_1}.2 is not equal ${CMAKE_MATCH_2}")
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endif()
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if(CMAKE_MATCH_1 VERSION_EQUAL "${CMAKE_MATCH_2}.2")
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message(FATAL_ERROR "${CMAKE_MATCH_1} is equal ${CMAKE_MATCH_2}.2?")
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else()
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message(STATUS "${CMAKE_MATCH_1} is not equal ${CMAKE_MATCH_2}.2")
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endif()
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endforeach()
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# test the negative outcomes first, due to the implementation the positive
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# allow some additional strings to pass that would not fail for the negative
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# tests
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list(APPEND EQUALV "1a 1")
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list(APPEND EQUALV "1.1a 1.1")
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list(APPEND EQUALV "1.0a 1")
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list(APPEND EQUALV "1a 1.0")
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foreach(v IN LISTS EQUALV)
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# check equal versions
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string(REGEX MATCH "(.*) (.*)" _dummy "${v}")
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if(CMAKE_MATCH_1 VERSION_EQUAL CMAKE_MATCH_2)
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message(STATUS "${CMAKE_MATCH_1} is equal ${CMAKE_MATCH_2}")
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else()
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message(FATAL_ERROR "${CMAKE_MATCH_1} is not equal ${CMAKE_MATCH_2}?")
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endif()
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# still equal, but inverted order of operands
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string(REGEX MATCH "(.*) (.*)" _dummy "${v}")
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if(CMAKE_MATCH_2 VERSION_EQUAL CMAKE_MATCH_1)
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message(STATUS "${CMAKE_MATCH_2} is equal ${CMAKE_MATCH_1}")
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else()
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message(FATAL_ERROR "${CMAKE_MATCH_2} is not equal ${CMAKE_MATCH_1}?")
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endif()
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endforeach()
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set(LESSV "1.2.3.4.5.6.7.8 1.2.3.4.5.6.7.9")
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list(APPEND LESSV "1.2.3.4.5.6.7 1.2.3.4.5.6.7.9")
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list(APPEND LESSV "1 1.0.0.1")
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foreach(v IN LISTS LESSV)
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string(REGEX MATCH "(.*) (.*)" _dummy "${v}")
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# check less
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if(CMAKE_MATCH_1 VERSION_LESS CMAKE_MATCH_2)
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message(STATUS "${CMAKE_MATCH_1} is less than ${CMAKE_MATCH_2}")
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else()
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message(FATAL_ERROR "${CMAKE_MATCH_1} is not less than ${CMAKE_MATCH_2}?")
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|
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endif()
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# check greater
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|
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if(CMAKE_MATCH_2 VERSION_GREATER CMAKE_MATCH_1)
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message(STATUS "${CMAKE_MATCH_2} is greater than ${CMAKE_MATCH_1}")
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else()
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message(FATAL_ERROR "${CMAKE_MATCH_2} is not greater than ${CMAKE_MATCH_1}?")
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endif()
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# check less negative case
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|
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if(NOT CMAKE_MATCH_2 VERSION_LESS CMAKE_MATCH_1)
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message(STATUS "${CMAKE_MATCH_2} is not less than ${CMAKE_MATCH_1}")
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else()
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message(FATAL_ERROR "${CMAKE_MATCH_2} is less than ${CMAKE_MATCH_1}?")
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|
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endif()
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|
|
# check greater or equal (same as less negative)
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|
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|
|
if(CMAKE_MATCH_2 VERSION_GREATER_EQUAL CMAKE_MATCH_1)
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|
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message(STATUS "${CMAKE_MATCH_2} is not less than ${CMAKE_MATCH_1}")
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|
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else()
|
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|
|
message(FATAL_ERROR "${CMAKE_MATCH_2} is less than ${CMAKE_MATCH_1}?")
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|
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|
|
endif()
|
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|
|
# check greater negative case
|
|
|
|
|
if(NOT CMAKE_MATCH_1 VERSION_GREATER CMAKE_MATCH_2)
|
|
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|
|
message(STATUS "${CMAKE_MATCH_1} is not greater than ${CMAKE_MATCH_2}")
|
|
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|
|
else()
|
|
|
|
|
message(FATAL_ERROR "${CMAKE_MATCH_1} is greater than ${CMAKE_MATCH_2}?")
|
|
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|
|
endif()
|
|
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|
|
|
|
|
|
# check less or equal (same as greater negative) case
|
|
|
|
|
if(CMAKE_MATCH_1 VERSION_LESS_EQUAL CMAKE_MATCH_2)
|
|
|
|
|
message(STATUS "${CMAKE_MATCH_1} is not greater than ${CMAKE_MATCH_2}")
|
|
|
|
|
else()
|
|
|
|
|
message(FATAL_ERROR "${CMAKE_MATCH_1} is greater than ${CMAKE_MATCH_2}?")
|
|
|
|
|
endif()
|
|
|
|
|
endforeach()
|
