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While commit 0321fb573654 ("Cygwin: glob: convert wchar_t to wint_t")
switched the entire glob mechanism from wchar_t to wint_t, the globify
function calling glob on a DOS command line did not catch up and only
checked for the next character constituting a 16 bit wchar_t. This
broke reading surrogate pairs from incoming DOS command lines if the
string had to go through glob(3).
Check for an entire 32 bit unicode char instead.
Fixes: 0321fb573654 ("Cygwin: glob: convert wchar_t to wint_t")
Reported-by: David Allsopp <david@tarides.com>
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>