[gtk: 3/3] Merge branch 'master' into 'master'

[Matthias Clasen <matthiasc src gnome org>]

commit c047e97cfa7914e0b3ba032a1eb2ac08d9bc7fd8
Merge: bc13a58f3c 2f181df1cf
Author: Matthias Clasen <mclasen redhat com>
Date:   Sun Jun 10 23:05:50 2018 +0000

    Merge branch 'master' into 'master'
    
    gtk: Add gtk_is_initialized() and gtk_get_main_thread()
    
    See merge request GNOME/gtk!186

 gtk/gtkmain.c             | 31 +++++++++++++++++++++++++++++++
 gtk/gtkmain.h             |  6 ++++++
 testsuite/gtk/main.c      | 30 ++++++++++++++++++++++++++++++
 testsuite/gtk/meson.build |  1 +
 4 files changed, 68 insertions(+)
---