Review Request 119564: Add define to re-enable Qt functionality we depend on.

[Axel Rasmussen]

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Review request for Build System, Extra Cmake Modules and KDE Frameworks.


Bugs: 337472
    http://bugs.kde.org/show_bug.cgi?id=337472


Repository: extra-cmake-modules


Description
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Upstream Qt commit e112c2e altered the way QExplicitlySharedDataPointer behaves by default, such that it no longer uses a `static_cast` to cast compatible pointers. A nontrivial amount of KDE code (I encountered the build error in KService, although there are other users) depends on this functionality, so this commit adds a define to the build system which re-enables the code in Qt.


Diffs
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  kde-modules/KDECompilerSettings.cmake fdc930e 

Diff: https://git.reviewboard.kde.org/r/119564/diff/


Testing
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I applied this patch, attempted to build KService, and the build succeeded, rather than exhibiting the compile errors found in the log provided on the bug report.


Thanks,

Axel Rasmussen

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