Makefile timestamp rebuild files, howto?

Ive searched google for this answer as well as the gnu makefile
documentation page and I cant seem to find what Im looking for.

Im using gmake on solaris to build a project.  I know that this would
work for a single file:

file.o: file.cpp
     CC -c  file.cpp -o file.o

But what I want to do is more general, since I have a list of OBJECTS
I want OBJECTS to somehow check all their associated .cpp files
and rebuild if one of them has been changed without having to
list each file seperately as above.

something like:

$(OBJECTS): ($SOURCES)
    CC -c $*.cpp -o $@

How do I make this work?