More SCO funnies

Ok so thanks to Larry I managed to get postgresql compiled and running
on SCO. Now I'm trying to compile a small 'C' program. When I link I get

cc -L/usr/local/pgsql/lib -lpq -lm -o t_postgresql t_postgresql.o
post_util.o
undefined first referenced
symbol in file
PQexec t_postgresql.o
PQclear t_postgresql.o
PQfinish t_postgresql.o
PQresultStatus t_postgresql.o
PQcmdTuples t_postgresql.o
PQntuples t_postgresql.o
PQgetvalue t_postgresql.o
PQftype t_postgresql.o
PQfmod t_postgresql.o
PQnfields t_postgresql.o
PQfname t_postgresql.o
PQsetdbLogin t_postgresql.o
PQstatus t_postgresql.o
floor post_util.o
i386ld fatal: Symbol referencing errors. No output written to t_postgresql

Larry, can you work your magic again?