[Bug-autogen] autogen with guile 2.2 not compiling, patches

[carl hansen]

autogen 5.18.12  won't compile with guile 2.2

in configure it says
  _guile_versions_to_search="2.0 1.8"

probably should say
_guile_versions_to_search="2.2 2.0 1.8"

patches are:

autogen-5.18.12/config/guile.m4
    _guile_versions_to_search="m4_default([$1], [  2.0 1.8])"
to
  _guile_versions_to_search="m4_default([$1], [2.2 2.0 1.8])"


autogen-5.18.12/agen5/guile-iface.h
line 12:
// was:    #elif GUILE_VERSION < 201000
#elif GUILE_VERSION < 202003

then autoreconf -af

then it builds.
whether it works right, who knows.