fix rule to rebuild StreamVersion.o whenever any other object code changed

GNUmakefile

@@ -32,9 +32,8 @@ HEADERS += StreamError.h
 StreamCore.o StreamCore.d: streamReferences
 
 # Update version string (contains __DATE__ and __TIME__)
-# each time make runs.
-StreamVersion.o: FORCE
-FORCE:
+# each time anything changes.
+StreamVersion.o: $(filter-out StreamVersion.o stream_exportAddress.o,$(LIBOBJS))
 
 streamReferences:
 	$(PERL) ../src/makeref.pl Interface $(BUSSES) > $@

src/Makefile

@@ -74,7 +74,7 @@ CPPFLAGS += -DUSE_TYPED_RSET
 -include $(TOP)/configure/RULES
 
 # Update version string whenever something changes
-StreamVersion$(OBJ): ../*.c ../*.h ../*.cc ../CONFIG_STREAM
+StreamVersion$(OBJ): $(filter-out StreamVersion.o,$(LIBOBJS)$(LIBRARY_OBJS))
 
 # Add references to all registrars to main file to avoid
 # missing initialization.