How compatible is lesstif with openmotif ? A lot of examples from Motif Programming Manual return some errors like this one: simplespin_value.c:108: error: 'XmNwrap' undeclared (first use in this function) simplespin_value.c:108: error: (Each undeclared identifier is reported only once simplespin_value.c:108: error: for each function it appears in.)