rules for RCS in make

[Christopher JS Vance]

rosalia at max.sunysb.edu (Mark Galassi) writes:

>Does anyone have a rule for make, so that any .c file will depend
>on an RCS/file.c,v and it will be generated with "co file.c"?

>I can do it by hand, for every .c file, but I would much prefer to
>have a rule.  Unfortunately the rule cannot be a simple one like
>the .c from .o rule, because of the RCS/ prefix.

If you're happy to keep your RCS files in the same directory as your
object code, rather than a separate directory, the answer is fairly
straightforward.  RCS does not insist that the ,v files be in a
different directory.  I've done this, and have been reasonably happy
with the result.

|	.c,v.o:
|		$(CO) $(COFLAGS) $<
|		$(CC) $(CCFLAGS) -c $<
|		-rm -f $<

Or somethining similar (i.e., this is from non-recent memory).

If you do want to keep your files in a separate directory, you could
check whether your make understands VPATH.  I've not tried this with
RCS.  If the manual doesn't mention VPATH, it may still be there (try
strings ...).