Re: Coming attractions: VPATH build; make variables issue

Tom Lane writes:

> > dep depend:
> > $(CC) -MM $(CFLAGS) *.c >depend
>
> Why? Shouldn't CFLAGS include CPPFLAGS?

Nope. That's what it does now, but the implicit rule is

%.o: %.c
$(CC) -c $(CPPFLAGS) $(CFLAGS)

so if you set CFLAGS to include CPPFLAGS then you get all of it
double. So I have to fix all the rules to say

dep depend:
$(CC) -MM $(CPPFLAGS) $(CFLAGS) *.c >depend

I just notice that the workaround I had in mind won't work so well, so I
guess I'll have to fix it the hard way.

> These targets seem correct to me as they stand ... other than assuming
> CC is gcc, but nevermind that...

I'd be glad to add support for other compilers into the --enable-depend
mechanism, if someone supplies the details.

--
Peter Eisentraut peter_e(at)gmx(dot)net http://yi.org/peter-e/