Since Qt5 the Qt developers decided to not define the Q_WS_ macros anymore. The reasoning is to disable all platform specific code and force the Qt users like us to review all code guarded by Q_WS_ macros. This means all code in LyX inside these ifdef's is not compiled and executed anymore with Qt5.
My question now is: should we simply replace all Q_WS_ macros with the corresponding Q_OS_ macro for all platforms or should this be done for every platform in separate steps? The first patch does this for all platforms - in case someone wants to test it too. The second one is for Mac OS X only. I'll plan to commit the second one if I don't get enough encouraging feedback for the first one. With one of them applied I'm able to use LyX with Qt5.3.1 on a Mac 10.8.6. Stephan
2014-08-25-Qt5-all-platforms.patch
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2014-08-25-Qt5-mac-platform.patch
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