Update to allow passing FUNITFLAGS on the command line

Makefile.in

@@ -134,7 +134,7 @@ new: all install
 ftest: all
 	@FC=$(FC) FCFLAGS="$(FCFLAGS)" MODULES=$(MODULES_DIR) \
 	LDFLAGS="-L$(builddir)/lib -lppmnumerics $(LDFLAGS) $(LIBS)" \
-	CPP=$(CPP) CG="$(CG)" DEFINE="$(CPPFLAGS)" FSFLAG=$(MODFLAG) $(FUNIT) $(FUNIT_FLAGS) $(FUNFILES)
+	CPP=$(CPP) CG="$(CG)" DEFINE="$(CPPFLAGS)" FSFLAG=$(MODFLAG) $(FUNIT) $(FUNIT_FLAGS) $(FUNITFLAGS) $(FUNFILES)
 
 # This ensures all dependency files are up-to-date
 # WARNING: The directive below will fail silently, in case of problems