The last good commit was 8474716abb.
After this commits from main were pushed to blender-v4.0-release. These are
being reverted.
Commits a4880576dc from to b26f176d1a that happend afterwards were meant for
4.0, and their contents is preserved.
winstuff.c got converted to .cc recently, and a merge was done of
#113674 from 4.0 which still was using C style code.
Small update in code style was required here.
