1121c57f54
(cygwin_internal): Drop CW_SYNC_WINCWD case. * globals.cc (ro_u_pipedir): New R/O unicode string. * ntdll.h (RtlSetCurrentDirectory_U): Declare. * path.cc (cwdstuff::set): Improve comments. Drop setting Win32 CWD to \\?\PIPE\ on init. Keep Win32 CWD in sync, if possible. Set to \\?\PIPE\ otherwise. * include/cygwin/version.h (CYGWIN_VERSION_API_MINOR): Revert to 230. * include/sys/cygwin.h (cygwin_getinfo_types): Remove CW_SYNC_WINCWD.