Tom Roche wrote: >> FFLAGS = -ffixed-line-length-132 -w -c ... >> $(FC) -o $(MODEL) $(FFLAGS) $(OBJS) $(MODULES) $(LIBS) FFLAGS contains "-c" (i.e. only compile) - but you also use FFLAGS for linking. Thus, the compiler ignores the ".o" files and does not link. Solution: Remove the "-c" from FFLAGS. Tobias