libglnx is the successor to libgsystem: https://git.gnome.org/browse/libgsystem

It is for modules which depend on both GLib and Linux, intended to be
used as a git submodule.

Features:

 - File APIs which use `openat()` like APIs, but also take a `GCancellable`
   to support dynamic cancellation
 - APIs also have a `GError` parameter
 - High level "shutil", somewhat inspired by Python's
 - A "console" API for tty output
 - A backport of the GLib cleanup macros for projects which can't yet take
   a dependency on 2.40.

Why?
----

There are multiple projects which have a hard dependency on Linux and
GLib, such as NetworkManager, ostree, flatpak, etc.  It makes sense
for them to be able to share Linux-specific APIs.

This module also contains some code taken from systemd, which has very
high quality LGPLv2+ shared library code, but most of the internal
shared library is private, and not namespaced.

One could also compare this project to gnulib; the salient differences
there are that at least some of this module is eventually destined for
inclusion in GLib.

Porting from libgsystem
-----------------------

For all of the filesystem access code, libglnx exposes only
fd-relative API, not `GFile*`.  It does use `GCancellable` where
applicable.

For local allocation macros, you should start using the `g_auto`
macros from GLib.  A backport is included in libglnx.  There are a few
APIs not defined in GLib yet, such as `glnx_autofd`.

`gs_transfer_out_value` is replaced by `g_steal_pointer`.

Contributing
------------

Development happens in GNOME Gitlab: https://gitlab.gnome.org/GNOME/libglnx

(If you're seeing this on the Github mirror, we used to do development
 on Github but that was before GNOME deployed Gitlab.)
