After a recent update of glib to version 2.22.3, a warning is printed on
the terminal when Emacs starts:
,----
| % ./emacs -q&
| [1] 6017
|
| (emacs:6017): GLib-WARNING **: g_set_prgname() called multiple times
`----
From the glib NEWS file:
,----
| Overview of Changes from GLib 2.22.2 to GLib 2.22.3
| ===================================================
|
| * Bugs fixed:
| [...]
| 563627 g_get_prgname() threadsafety
`----
The URL to the glib g_get_prgname bug is
https://bugzilla.gnome.org/show_bug.cgi?id=563627.