Review Request: Update FindPythonLibrary.cmake and PythonMacros.cmake.

[Luca Beltrame]

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http://git.reviewboard.kde.org/r/107148/
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Review request for Build System.


Description
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These adjustments ensure that the macros work with newer Python versions (which changed their behavior with byte-compiled files) and allow proper installation in systems where the name of the Python library is changed (see openSUSE). Additionally, all the finding logic is now delegated to the proper Find* packages in CMake. The variables are set to ensure source compatibility: those not set are directly taken from FindPythonInterp and FindPythonLibs.

Additionally, PythonMacros is adjusted to ensure that Python files are properly byte-compiled and messages routed to the right place.

This change will be committed only to the 4.10 branch, as it relies on some CMake functionality (VERSION_LESS, VERSION_GREATER, Python_ADDITIONAL_VERSIONS) only available in 2.8+.


Diffs
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  cmake/modules/FindPythonLibrary.cmake 60567e297f686ecc1a1c1f4bcebfd94181bfe116 
  cmake/modules/PythonMacros.cmake 661e32d0c8fbc5a083fd7e8271557ae51c5e12d1 

Diff: http://git.reviewboard.kde.org/r/107148/diff/


Testing
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Ran CMake in the PyKDE4 checkout, testing different interpreters and site-packages directories, no issues.


Thanks,

Luca Beltrame

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