gdm-screenshot.c: In function ‘screenshot_grab_lock’:
gdm-screenshot.c:76:9: warning: ‘gdk_cursor_new’ is deprecated [-Wdeprecated-declarations]
         cursor = gdk_cursor_new (GDK_WATCH);
         ^~~~~~
In file included from /usr/include/gtk-3.0/gdk/gdk.h:34:0,
                 from /usr/include/gtk-3.0/gtk/gtk.h:30,
                 from gdm-screenshot.c:30:
/usr/include/gtk-3.0/gdk/gdkcursor.h:228:12: note: declared here
 GdkCursor* gdk_cursor_new   (GdkCursorType    cursor_type);
            ^~~~~~~~~~~~~~
gdm-screenshot.c:77:9: warning: ‘gdk_pointer_grab’ is deprecated: Use 'gdk_device_grab' instead [-Wdeprecated-declarations]
         gdk_pointer_grab (gtk_widget_get_window (selection_window), FALSE, 0, NULL,
         ^~~~~~~~~~~~~~~~
In file included from /usr/include/gtk-3.0/gdk/gdk.h:50:0,
                 from /usr/include/gtk-3.0/gtk/gtk.h:30,
                 from gdm-screenshot.c:30:
/usr/include/gtk-3.0/gdk/gdkmain.h:86:15: note: declared here
 GdkGrabStatus gdk_pointer_grab       (GdkWindow    *window,
               ^~~~~~~~~~~~~~~~
gdm-screenshot.c:79:9: warning: ‘gdk_cursor_unref’ is deprecated: Use 'g_object_unref' instead [-Wdeprecated-declarations]
         gdk_cursor_unref (cursor);
         ^~~~~~~~~~~~~~~~
In file included from /usr/include/gtk-3.0/gdk/gdk.h:34:0,
                 from /usr/include/gtk-3.0/gtk/gtk.h:30,
                 from gdm-screenshot.c:30:
/usr/include/gtk-3.0/gdk/gdkcursor.h:247:13: note: declared here
 void        gdk_cursor_unref             (GdkCursor       *cursor);
             ^~~~~~~~~~~~~~~~
gdm-screenshot.c: In function ‘screenshot_get_pixbuf’:
gdm-screenshot.c:140:9: warning: ‘gdk_screen_width’ is deprecated [-Wdeprecated-declarations]
         if (x_orig + width > gdk_screen_width ()) {
         ^~
In file included from /usr/include/gtk-3.0/gdk/gdk.h:50:0,
                 from /usr/include/gtk-3.0/gtk/gtk.h:30,
                 from gdm-screenshot.c:30:
/usr/include/gtk-3.0/gdk/gdkmain.h:108:6: note: declared here
 gint gdk_screen_width  (void) G_GNUC_CONST;
      ^~~~~~~~~~~~~~~~
gdm-screenshot.c:141:17: warning: ‘gdk_screen_width’ is deprecated [-Wdeprecated-declarations]
                 width = gdk_screen_width () - x_orig;
                 ^~~~~
In file included from /usr/include/gtk-3.0/gdk/gdk.h:50:0,
                 from /usr/include/gtk-3.0/gtk/gtk.h:30,
                 from gdm-screenshot.c:30:
/usr/include/gtk-3.0/gdk/gdkmain.h:108:6: note: declared here
 gint gdk_screen_width  (void) G_GNUC_CONST;
      ^~~~~~~~~~~~~~~~
gdm-screenshot.c:143:9: warning: ‘gdk_screen_height’ is deprecated [-Wdeprecated-declarations]
         if (y_orig + height > gdk_screen_height ()) {
         ^~
In file included from /usr/include/gtk-3.0/gdk/gdk.h:50:0,
                 from /usr/include/gtk-3.0/gtk/gtk.h:30,
                 from gdm-screenshot.c:30:
/usr/include/gtk-3.0/gdk/gdkmain.h:110:6: note: declared here
 gint gdk_screen_height (void) G_GNUC_CONST;
      ^~~~~~~~~~~~~~~~~
gdm-screenshot.c:144:17: warning: ‘gdk_screen_height’ is deprecated [-Wdeprecated-declarations]
                 height = gdk_screen_height () - y_orig;
                 ^~~~~~
In file included from /usr/include/gtk-3.0/gdk/gdk.h:50:0,
                 from /usr/include/gtk-3.0/gtk/gtk.h:30,
                 from gdm-screenshot.c:30:
/usr/include/gtk-3.0/gdk/gdkmain.h:110:6: note: declared here
 gint gdk_screen_height (void) G_GNUC_CONST;
      ^~~~~~~~~~~~~~~~~