[Bug 58507] Cygwin in Wine cmd "find . -iname '*.exe'" breaks but "find Downloads -iname '*.exe'" works

[WineHQ Bugzilla]

http://bugs.winehq.org/show_bug.cgi?id=58507

--- Comment #5 from Stian Low  ---
As final wrap-up with a solution to the emacs side bugs:

This form of find works for Emacs eshell:
find . ( -iname *.exe ) -exec ls -ld {} ;

It is supported by:
SET CYGWIN_HOME=c:\cygwin64
SET PATH=%CYGWIN_HOME%\bin;%PATH%

c:/cygwin64 [255] $ which find
c:/cygwin64/bin/find.exe

Cygwin's find supports Emacs M-x find-name-dired which provides path list
buffer used to conveniently navigate a file system.

For future reference here's some results of eshell find:

c:/cygwin64 $ find . ( -iname *.exe ) -exec ls -ld {} ;
Cygwin WARNING:
  Couldn't compute FAST_CWD pointer.  This typically occurs if you're using
  an older Cygwin version on a newer Windows.  Please update to the latest
  available Cygwin version from https://cygwin.com/.  If the problem persists,
  please see https://cygwin.com/problems.html

-rwxr-xr-x+ 1 DEB+any DEB+None 53779 Jul 16  2023 ./bin/addftinfo.exe
-rwxr-xr-x+ 1 DEB+any DEB+None 36883 Jul 14  2022 ./bin/arch.exe
-rwxr-xr-x+ 3 DEB+any DEB+None 108563 Mar  2  2023 ./bin/ash.exe
-rwxr-xr-x+ 1 DEB+any DEB+None 55827 Jul 14  2022 ./bin/b2sum.exe
-rwxr-xr-x+ 1 DEB+any DEB+None 42003 Jul 14  2022 ./bin/base32.exe
-rwxr-xr-x+ 1 DEB+any DEB+None 41491 Jul 14  2022 ./bin/base64.exe
-rwxr-xr-x+ 1 DEB+any DEB+None 36371 Jul 14  2022 ./bin/basename.exe
-rwxr-xr-x+ 1 DEB+any DEB+None 50195 Jul 14  2022 ./bin/basenc.exe
-rwxr-xr-x+ 2 DEB+any DEB+None 854035 Jan 23  2024 ./bin/bash.exe

Luckily the FAST_CWD doesn't break Emacs M-x find-name-dired either.
Here's the buffer produced by Emacs M-x find-name-dired which supports actions
per item consistent with Linux and Windows.

c:/cygwin64/:
  find . ( -iname *.exe ) -exec ls -ld {} ;
  Cygwin WARNING:
    Couldn't compute FAST_CWD pointer.  This typically occurs if you're using
    an older Cygwin version on a newer Windows.  Please update to the latest
    available Cygwin version from https://cygwin.com/.  If the problem
persists,
    please see https://cygwin.com/problems.html

-rwxr-xr-x+ 1 DEB+any DEB+None 53779 Jul 16  2023 bin/addftinfo.exe
  -rwxr-xr-x+ 1 DEB+any DEB+None 36883 Jul 14  2022 bin/arch.exe
  -rwxr-xr-x+ 3 DEB+any DEB+None 108563 Mar  2  2023 bin/ash.exe
  -rwxr-xr-x+ 1 DEB+any DEB+None 55827 Jul 14  2022 bin/b2sum.exe
  -rwxr-xr-x+ 1 DEB+any DEB+None 42003 Jul 14  2022 bin/base32.exe
  -rwxr-xr-x+ 1 DEB+any DEB+None 41491 Jul 14  2022 bin/base64.exe

So far FAST_CWD seems largely be ignorable as a red herring of Cygwin
integration problems.