• gnome-autogen.sh does’t recognize the need for GTK-Doc if GTK_DOC_CHECK
is not present at the beginning of a line of configure.ac (which is
the case here)
• autogen.sh now takes care of running gtkdocize, thus copying over
gtk-doc.make. If GTK-Doc is not present, a fake gtk-doc.make is
generated, so automake doesn’t complain anymore