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bug#14541: 24.3.50; `ediff-buffers' does not play well with recent Cygwi
From: |
Drew Adams |
Subject: |
bug#14541: 24.3.50; `ediff-buffers' does not play well with recent Cygwin version |
Date: |
Mon, 3 Jun 2013 09:21:10 -0700 (PDT) |
> > But I wonder if `ediff-buffers' could perhaps prevent the error/warning
> > anyway. I don't know whether it is really the 8-char DOS file-name
> > format that Cygwin objects to, but I think so. Maybe just having it
> > use full Windows (not DOS) file names would be a fix?
>
> No. Cygwin w[h]ines about drive letters, not about the 8+3 aliases. So
> using long file names will not help. You can verify that by invoking
> Diff from the shell prompt.
I see. That was not clear to me, but it seems you are right.
> We could perhaps push "CYGWIN=nodosfilewarning" into the environment
> when Emacs launches child processes. However, as these URLs indicate:
>
> http://stackoverflow.com/questions/9079982/cygwin-nodosfilewarning-doesnt-
> help-cygwin-warning
> http://superuser.com/questions/370545/behaviour-of-cygwins-
> nodosfilewarning
>
> this solution is not reliable if there's some other Cygwin process
> running on the same system. So I think the only reliable solution is
> to put the above into the System environment variables, so that
> whatever the first Cygwin process is, it always sees it.
I read the postings at both of those URLs, but I do not see anywhere where
they say what you say about reliability. What is a concrete example of a
problem introduced by Emacs setting this env var?
FWIW, I have added (setenv "CYGWIN" "nodosfilewarning") to setup-cygwin.el.
That seems to take care of the problem without, AFAICT, creating other
problems. But if you know of problems that it introduces, please let me know.
- bug#14541: 24.3.50; `ediff-buffers' does not play well with recent Cygwin version, Drew Adams, 2013/06/03
- bug#14541: 24.3.50; `ediff-buffers' does not play well with recent Cygwin version, Eli Zaretskii, 2013/06/03
- bug#14541: 24.3.50; `ediff-buffers' does not play well with recent Cygwin version,
Drew Adams <=
- bug#14541: 24.3.50; `ediff-buffers' does not play well with recent Cygwin version, Eli Zaretskii, 2013/06/03
- bug#14541: 24.3.50; `ediff-buffers' does not play well with recent Cygwin version, Achim Gratz, 2013/06/03
- bug#14541: 24.3.50; `ediff-buffers' does not play well with recent Cygwin version, Drew Adams, 2013/06/03
- bug#14541: 24.3.50; `ediff-buffers' does not play well with recent Cygwin version, Eli Zaretskii, 2013/06/03
- bug#14541: 24.3.50; `ediff-buffers' does not play well with recent Cygwin version, Achim Gratz, 2013/06/05
- bug#14541: 24.3.50; `ediff-buffers' does not play well with recent Cygwin version, Drew Adams, 2013/06/05
- bug#14541: 24.3.50; `ediff-buffers' does not play well with recent Cygwin version, Achim Gratz, 2013/06/06
- bug#14541: 24.3.50; `ediff-buffers' does not play well with recent Cygwin version, Eli Zaretskii, 2013/06/06
- bug#14541: 24.3.50; `ediff-buffers' does not play well with recent Cygwin version, Drew Adams, 2013/06/06