48 lines
1.3 KiB
CMake
48 lines
1.3 KiB
CMake
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# - Utility function for Find modules considering multiple possible versions
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#
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# Requires these CMake modules:
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# no additional modules required
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#
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# Original Author:
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# 2009-2010 Ryan Pavlik <rpavlik@iastate.edu> <abiryan@ryand.net>
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# http://academic.cleardefinition.com
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# Iowa State University HCI Graduate Program/VRAC
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#
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# Copyright Iowa State University 2009-2010.
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# Distributed under the Boost Software License, Version 1.0.
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# (See accompanying file LICENSE_1_0.txt or copy at
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# http://www.boost.org/LICENSE_1_0.txt)
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if(__check_version)
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return()
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endif()
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set(__check_version YES)
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function(check_version var packagename version)
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# By default, we say that the version is good enough
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set(_result TRUE)
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# Was a version requested? If so, what is our test condition?
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if(${packagename}_FIND_VERSION)
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if(${packagename}_FIND_VERSION_EXACT)
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# Yes, an exact == version was requested - check it.
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if(NOT "${version}" VERSION_EQUAL "${${packagename}_FIND_VERSION}")
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# version is not an exact match
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set(_result FALSE)
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endif()
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else()
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# Yes, a minimum >= version was requested - check it.
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if("${version}" VERSION_LESS "${${packagename}_FIND_VERSION}")
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# version is lower than requested
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set(_result FALSE)
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endif()
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endif()
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endif()
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# Return _result
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set(${var} ${_result} PARENT_SCOPE)
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endfunction()
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