I had Cygwin running on an old box for a while. I have a desktop
shortcut to run Emacs, using the following command line:
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C:\cygwin64\bin\run2.exe --display 127.0.0.1:0.0 /usr/local/bin/emacs.xml
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This was working fine. I set this up quite a while ago, so I don't
quite remember the circumstances of the pieces of this.
I'm now setting up cygwin on a new box, with very similar
configuration. Unfortunately, setting up Cygwin is something I don't
do very often, and it's usually a year or more since the last time I
did it. I've already reviewed the FAQ and User Guide for hints.
When I first tried this command line, it failed without any good error
messages. I later realized that one good reason it's failing is that
"/usr/local/bin/emacs.xml" doesn't exist on the new box. I looked at
this file on the old box, and it seems relatively simple, but is this
a file I'm supposed to create myself? I don't remember doing this.