missing definition in libobjtk.so

[Michael Harnois <mharnois sbt net>]

I have several apps failing to compile with the message

/usr/lib/libobgtk.so: undefined reference to `g_dataset_force_id'

-- 
Michael D. Harnois, Redeemer Lutheran Church, Washburn, IA 
mharnois@sbt.net                      aa0bt@aa0bt.ampr.org 
Most lies succeed because no one goes through the work to 
figure out how to catch them. -- Paul Ekman