128 lines
4.8 KiB
CMake
128 lines
4.8 KiB
CMake
#.rst:
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# GetMSVCVersion
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# --------------
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#
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#
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#
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# get_msvc_major_version(<var>)
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# get_msvc_minor_version(<var>)
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# get_msvc_combined_major_minor_version(<var>)
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# get_msvc_major_minor_version(<major_var> <minor_var>)
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# get_msvc_unique_decimal_version(<var>)
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#
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# This family of functions is designed to be used to convert
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# MSVC_VERSION from the compiler version number to the Visual Studio
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# decimal version number (2012 is 11.0, 2015 is 14.0). All take a name
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# of a variable in <var> to return their results in.
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#
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# Consider Visual Studio 2013, which reports 1800 in MSVC_VERSION (and
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# the _MSC_VER preprocessor macro). It is also known as VS 12 or 12.0.
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# (Minor versions are rarely used, except in the case of 7.1 aka
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# VS.NET 2003) The functions would return this output for 2013:
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#
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# get_msvc_major_version: 12
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# get_msvc_minor_version: 0
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# get_msvc_combined_major_minor_version: 120
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# get_msvc_major_minor_version: 12 in <major_var>, 0 in <minor_var>
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# get_msvc_unique_decimal_version: 12 (this returns with a decimal and
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# minor when needed to be precise, e.g. 7.1)
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#
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# The variable is not modified if not building with MSVC.
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#=============================================================================
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# Copyright 2015 Ryan Pavlik <ryan.pavlik@gmail.com>
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#
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# Distributed under the OSI-approved BSD License (the "License");
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# see below.
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#
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# This software is distributed WITHOUT ANY WARRANTY; without even the
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# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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# See the License for more information.
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#=============================================================================
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions
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# are met:
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#
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# * Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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#
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# * Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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#
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# * Neither the names of Kitware, Inc., the Insight Software Consortium,
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# nor the names of their contributors may be used to endorse or promote
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# products derived from this software without specific prior written
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# permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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# HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#=============================================================================
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# This function serves as the main implementation, with the others just
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# tweaking the result.
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function(get_msvc_combined_major_minor_version _var)
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if(NOT MSVC)
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return()
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endif()
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math(EXPR _vs_ver "${MSVC_VERSION} / 10 - 60")
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# VS 2015 changed the pattern because they skipped VS 13
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if(_vs_ver GREATER 120)
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math(EXPR _vs_ver "${_vs_ver} + 10")
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endif()
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set(${_var} ${_vs_ver} PARENT_SCOPE)
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endfunction()
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# This function is also used as backend to some implementation, though
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# its contents are simpler, no real business logic to speak of.
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function(get_msvc_major_minor_version _major_var _minor_var)
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if(NOT MSVC)
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return()
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endif()
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get_msvc_combined_major_minor_version(_vs_ver)
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math(EXPR _vs_minor "${_vs_ver} % 10")
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math(EXPR _vs_major "(${_vs_ver} - ${_vs_minor}) / 10")
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set(${_major_var} ${_vs_major} PARENT_SCOPE)
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set(${_minor_var} ${_vs_minor} PARENT_SCOPE)
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endfunction()
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function(get_msvc_major_version _var)
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if(NOT MSVC)
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return()
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endif()
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get_msvc_major_minor_version(_vs_ver _dummy)
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set(${_var} ${_vs_ver} PARENT_SCOPE)
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endfunction()
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function(get_msvc_minor_version _var)
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if(NOT MSVC)
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return()
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endif()
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get_msvc_major_minor_version(_dummy _vs_ver)
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set(${_var} ${_vs_ver} PARENT_SCOPE)
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endfunction()
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function(get_msvc_unique_decimal_version _var)
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if(NOT MSVC)
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return()
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endif()
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get_msvc_major_minor_version(_vs_major _vs_minor)
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set(_vs_ver ${_vs_major})
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if(_vs_minor GREATER 0)
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set(_vs_ver "${_vs_ver}.${_vs_minor}")
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endif()
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set(${_var} ${_vs_ver} PARENT_SCOPE)
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endfunction()
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