Re: [PATCH] getcwd: on Solaris, work better if ancestors are inaccessible

[Jim Meyering]

Paul Eggert wrote:
> I installed this, for tar's sake:
>
> Subject: [PATCH] getcwd: on Solaris, work better if ancestors are inaccessible
>
> * lib/getcwd.c (__getcwd): If getcwd returns EINVAL for zero
> buffer and size, try again with a large buffer.  This works better
> on Solaris, since its getcwd succeeds even if the path to the root
> is inaccessible, and this is helpful in common cases such as .zfs
> hidden directories.  Problem reported by J Chapman Flack in
> http://lists.gnu.org/archive/html/bug-tar/2010-06/msg00000.html
> Use system getcwd if it's declared, not merely if it's partly
> working; use the partly-working test only to avoid needless effort
> if the system getcwd fails.
> * m4/getcwd-path-max.m4 (gl_FUNC_GETCWD_PATH_MAX): Omit
> comment that was already obsolete and is now even more obsolete.
> * modules/getcwd (Depends-on): Depend on strdup, since __getcwd
> now might call strdup.

Thanks!  That looks fine.