Re: doc: Add references to registered Haiku bugs

[Bruno Haible]

> Some of the Gnulib testsuite failures on Haiku are due to bugs in Haiku,
> which I registered. Here's the corresponding doc update.

And another one here. It causes a failure of the 'supersede' tests.

@waddlesplash: Also please don't forget about
https://dev.haiku-os.org/ticket/17040 . It is important as well.


2023-04-08  Bruno Haible  <bruno@clisp.org>

        doc: Mention another Haiku bug.
        * doc/posix-functions/open.texi: Mention a Haiku bug with symlinks.

diff --git a/doc/posix-functions/open.texi b/doc/posix-functions/open.texi
index 791e58a8e6..aa4f08b67d 100644
--- a/doc/posix-functions/open.texi
+++ b/doc/posix-functions/open.texi
@@ -42,6 +42,11 @@ Portability problems not fixed by Gnulib:
 The Gnulib replacement for @code{O_CLOEXEC} is not atomic, and so is
 not safe in the presence of multiple threads or signal handlers.
 @item
+@code{open ("symlink", O_CREAT ...)} fails when the argument points to a
+nonexistent file in an existing directory on some platforms:
+@c https://dev.haiku-os.org/ticket/18355
+Haiku.
+@item
 @code{open ("symlink", O_NOFOLLOW ...)} fails with @code{errno} set to
 @code{EMLINK} instead of the POSIX-required @code{ELOOP} on some
 platforms: