m4: Require glib version >= 2.22
m4: Require glib version >= 2.22

This is required by the GInetAddress functions.

fgouget/spice-common,fgouget/spice-common,SPICE/spice-common,fgouget/spice-common,fgouget/spice-common,SPICE/spice-common,SPICE/spice-common