* 0950-11.2.0-configure-msys2.patch: replace with building for cygwin
(the lto plugin DLL name changed, which we could patch back if it is a problem)
* 0951-11.2.0-msys2-spec.patch: not relevant for mingw
* 0953-11.2.0-testsuite-msys2.patch: not relevant for mingw
58029b34b9