Bug#780412: gnome-shell: Requiring GSystem, version none: Typelib file for namespace 'GSystem' (any version) not found ST4121)

[Simon McVittie]

Package: gnome-shell
Version: 3.14.2-3
Severity: minor
Tags: patch

On Sat, 31 Jan 2015 at 12:55:56 -0500, Michael Gilbert wrote:
> > Nov 19 15:59:04 boss gnome-session[3518]: (gnome-shell:3624): Gjs-WARNING **: JS ERROR: Exception in callback for signal: startup-complete: Error: Requiring GSystem, version none: Typelib file for namespace 'GSystem' (any version) not found
> 
> This error might also be worth spending some time to troubleshoot.

I believe this is a red herring: I also get that on my fully-working
GNOME 3 system. gnome-shell has an optional runtime dependency
on libgsystem, which is a GNOME library for Unix-specific misc.
It uses it exactly once, to do structured logging to systemd-journald:

        if (LoginManager.haveSystemd() &&
            sessionMode.currentMode != 'gdm' &&
            sessionMode.currentMode != 'initial-setup') {
            // Do not import globally to not depend
            // on systemd on non-systemd systems.
            let GSystem = imports.gi.GSystem;
            GSystem.log_structured_print('GNOME Shell started at ' + _startDate,
                                         ['MESSAGE_ID=' + GNOMESHELL_STARTED_MESSAGE_ID]);
        } else {
            log('GNOME Shell started at ' + _startDate);
        }

... which is just not worth a dependency IMO.

We don't actually package libgsystem at all, so should probably
stub that out (if (false && ...)) and just take the non-systemd code path.

    S