bug#27871: [PATCH] Treat unreachable current directory as error

[Philipp Stephani]

Paul Eggert <eggert@cs.ucla.edu> schrieb am So., 8. Okt. 2017 um 08:06 Uhr:

Philipp Stephani wrote:
> All of the current directory functions exhibit this behavior, including
> getwd and getcwd, so you need to make sure they are also covered.

Thanks for letting us know. I installed the 2nd attached patch, which addresses
this by making the patch behave more like what you originally proposed, while
still avoiding the need to use file_name_absolute_p (which is about Emacs file
names, not OS names).

That should work, thanks. FTR, this behavior is documented in the Linux manpage: http://man7.org/linux/man-pages/man2/getcwd.2.html