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Re: [Emacs-diffs] emacs-25 33ec2ff: Add one more mod-test test
From: |
Eli Zaretskii |
Subject: |
Re: [Emacs-diffs] emacs-25 33ec2ff: Add one more mod-test test |
Date: |
Sun, 29 Nov 2015 18:15:59 +0200 |
> Cc: address@hidden
> From: Ken Brown <address@hidden>
> Date: Sun, 29 Nov 2015 10:21:39 -0500
>
> >> Does the missing "from" indicate a bug in the Cygwin build?
> >
> > It indicates that your dladdr implementation doesn't work (probably
> > returns zero).
> >
> > Please ask on the Cygwin list, and if dladdr is indeed missing, the
> > test should be updated to accommodate for this return value on Cygwin.
>
> Thanks. In fact, dladdr isn't implemented on Cygwin, so dynlib_addr
> always returns false. I'll update the test.
Thanks.
> Should the update be Cygwin-specific? According to
> http://linux.die.net/man/3/dladdr, dladdr is a glibc extension to
> POSIX, so there could conceivably be other systems with the same
> issue.
Could be, but I don't know which systems might have this problem. If
you or someone else have access to *BSD or Solaris, please try that
there. I wouldn't recommend blindly do that everywhere except
GNU/Linux and Windows, because then we could miss some systems where
the functionality is available, but something needs to be done to have
it. So I think it's best to fail (pun intended) on the safe side.