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<p class="MsoNormal">Hi all~<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I would like to add gtest to my project with ExternalProject_Add(), and I’m using the vs2012 RC compiler to compile everything. I’m getting compile errors related to gtest using tuples:<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">4>H:\perforce\bin\vs11x64.SuperBuild\external\gtest\src\gTest\include\gtest/gtest-printers.h(550): error C2977: 'std::tuple' : too many template arguments<o:p></o:p></p>
<p class="MsoNormal">4> <o:p></o:p></p>
<p class="MsoNormal">4> 2> C:\Program Files (x86)\Microsoft Visual Studio 11.0\VC\include\utility(73) : see declaration of 'std::tuple'<o:p></o:p></p>
<p class="MsoNormal">4> <o:p></o:p></p>
<p class="MsoNormal">4>H:\perforce\bin\vs11x64.SuperBuild\external\gtest\src\gTest\include\gtest/gtest-printers.h(558): error C2977: 'std::tuple' : too many template arguments<o:p></o:p></p>
<p class="MsoNormal">4> <o:p></o:p></p>
<p class="MsoNormal">4> 2> C:\Program Files (x86)\Microsoft Visual Studio 11.0\VC\include\utility(73) : see declaration of 'std::tuple'<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">This is a known problem with gtest and visual studio 2012, as noted here:<o:p></o:p></p>
<p class="MsoNormal"><a href="http://stackoverflow.com/questions/8274588/c2977-stdtuple-too-many-template-arguments-msvc11">http://stackoverflow.com/questions/8274588/c2977-stdtuple-too-many-template-arguments-msvc11</a><o:p></o:p></p>
<p class="MsoNormal"><a href="http://code.google.com/p/googletest/issues/detail?id=412">http://code.google.com/p/googletest/issues/detail?id=412</a><o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I would like to define the _VARIADIC_MAX=10 preprocessor definition for the gtest cmake project, such that when my ExternalProject_Add() compiles gtest, this preprocessor symbol is defined and gtest compiles correctly. I manually tested
that the preprocessor definition works. So how to pass the preprocessor definition though ExternalProject_Add()? Any ideas?<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I would like to avoid having to use the PATCH_COMMAND to patch the gtest cmake files.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Thanks for your ideas,<o:p></o:p></p>
<p class="MsoNormal">Kent<o:p></o:p></p>
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