backport patches for hangs#253

lazka merged 4 commits intomsys2:msys2-3.5.5msys2/msys2-runtime:msys2-3.5.5from

jeremyd2019:msys2-3.5.5-takashi-patchesjeremyd2019/msys2-runtime:msys2-3.5.5-takashi-patchesCopy head branch name to clipboard