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We should port away from kdewin as soon as possible, but for now I just
wanted to get the code to build...

Port the big regular expression to QRegularExpression.

CMake is weird.

It doesn't make sense at all to run "make" to compute include
directories for projects that don't use Makefiles.
Even if some project managers indirectly use Makefiles and can't
compute include directories themselves, then it should be fixed there,
and not workarounded by calling MakeFile include path resolver,
which btw works only with very simple Makefiles, and as a result,
at least for me, it almost never succeeds.

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