Fixed configure.in inconsistency with its output (configure)

Issue located and fixed by Haruna. Thank you!

Signed-off-by: shennetsind <ind@henn.et>
Updated item_group.conf

Special Thanks to Muad_Dib for all the new info! and to Masao for bringing the issue to our attention.

Signed-off-by: shennetsind <ind@henn.et>