Review Request: Fix standard include dirs and macros under Windows

[Andreas Holzammer]

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This is an automatically generated e-mail. To reply, visit:
http://git.reviewboard.kde.org/r/100801/
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Review request for KDevelop, kdewin, Milian Wolff, and Patrick Spendrin.


Summary
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This patch enables Kdevelop to find the include directories and standard macros under Windows.

There is no "gcc -dM -E -" under Windows. So you need to do a hack to find the standard defined macros. Therefore a empty cpp file is compiled with a special commandline option "/Bx" to replace the compiler against a program which interpretes the output of the preprocessor.

For include directories Windows uses enviroment variables, so this patch processes them.

This patch has been written by Patrick Spenderin, thank you for that.


Diffs
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  languages/cpp/CMakeLists.txt e7c3c0c07ac3ac0ad5b49c60b0d0c279b77e8e75 
  languages/cpp/msvcdefinehelper.cpp PRE-CREATION 
  languages/cpp/setuphelpers.cpp b35ec8386a2c04a7caa421be9bf8e0d268f1213a 
  languages/cpp/setuphelpers_gcc.cpp PRE-CREATION 
  languages/cpp/setuphelpers_msvc.cpp PRE-CREATION 
  languages/cpp/tests/CMakeLists.txt e3b7add33e9f89b96ae8f86da3cc240647cd99a4 

Diff: http://git.reviewboard.kde.org/r/100801/diff


Testing
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tested it with Windows 7 Ultimate x64 with KDE Windows trunk compiled with MSVC 2010. Works so far.


Thanks,

Andreas

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