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Re: texinfo-5.9.90 pretest available

From: Eli Zaretskii
Subject: Re: texinfo-5.9.90 pretest available
Date: Tue, 24 Feb 2015 22:16:33 +0200

> Date: Tue, 24 Feb 2015 19:29:34 +0000
> From: Gavin Smith <address@hidden>
> Cc: Karl Berry <address@hidden>, Texinfo <address@hidden>
> Here's a fix to skip these tests. The test in configure.ac may not
> manage to exclude Cygwin, considering that Ken managed to compile
> pseudotty under Cygwin - suggestions are welcome.


One other possibility is to import posix_openpt and other modules from
Gnulib -- their native Windows version simply fails with ENOSYS, so
pseudotty could then exit with an appropriate exit code.

Could you perhaps describe in more detail the job of pseudotty and its
relation to what Init-inter.inc does?  I'd like to explore a
possibility of writing a native Windows version of that, but there's a
lot of stuff there of which I don't have a clear understanding.  E.g.,
why does pseudotty "read and ignore any data sent to terminal"?  Or
why does it need to read from file descriptor 3 (is the value
important?).  Or what is the significance of mknod and mkfifo
invocations in Init-inter.inc?

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