Bump GLib minimum version to 2.44

g_steal_pointer() is available since GLib 2.44

Signed-off-by: Jan Ziak <0xe2.0x9a.0x9b@gmail.com>

configure.ac.in

@@ -146,7 +146,7 @@ dnl ***********************************
 dnl *** Check for required packages ***
 dnl ***********************************
 XDT_CHECK_PACKAGE([EXO], [exo-2], [0.12.0])
-XDT_CHECK_PACKAGE([GLIB], [glib-2.0], [2.42.0])
+XDT_CHECK_PACKAGE([GLIB], [glib-2.0], [2.44.0])
 XDT_CHECK_PACKAGE([GIO], [gio-2.0], [2.42.0])
 XDT_CHECK_PACKAGE([GTHREAD], [gthread-2.0], [2.42.0])
 XDT_CHECK_PACKAGE([GMODULE], [gmodule-2.0], [2.42.0])
@@ -158,6 +158,9 @@ XDT_CHECK_PACKAGE([LIBXFCE4KBD_PRIVATE], [libxfce4kbd-private-3], [4.12.0])
 XDT_CHECK_PACKAGE([XFCONF], [libxfconf-0], [4.12.0])
 XDT_CHECK_PACKAGE([PANGO], [pango], [1.38.0])
 
+AC_DEFINE(GLIB_VERSION_MIN_REQUIRED, GLIB_VERSION_2_44, [Ignore post 2.44 deprecations])
+AC_DEFINE(GLIB_VERSION_MAX_ALLOWED, GLIB_VERSION_2_44, [Prevent post 2.44 APIs])
+
 dnl ******************************
 dnl *** GObject Instrospection ***
 dnl ******************************