Date: Thu, 23 Mar 1995 09:31:52 -0800 (PST) From: "Rodney W. Grimes" <rgrimes@gndrsh.aac.dev.com> To: terry@cs.weber.edu (Terry Lambert) Cc: hsu@freefall.cdrom.com, current@freefall.cdrom.com Subject: Re: Make World Times and a question about shared libs / make all Message-ID: <199503231731.JAA01203@gndrsh.aac.dev.com> In-Reply-To: <9503231715.AA18720@cs.weber.edu> from "Terry Lambert" at Mar 23, 95 10:15:34 am
next in thread | previous in thread | raw e-mail | index | archive | help
>
> > The one I really want to clean up is the installation of header
> > files, that causes more things to rebuild than anything to do
> > with the libraries.
> >
> > Yes! Yes! Yes! I've been thinking about this too. It's really
> > painful to have to recompile everything just because install is too dumb
> > to not update the mtime if the source and target are the same.
>
> I'd say that this had to do with using install directly at all
> instead of having the xxx/foo.h target depend on the yyy/foo.h
> source.
>
> In other words, it's a dependency issue.
>
> Part of this is the fact that there is not an include dir built
> in somewhere besides the system include directory, and the system
> include directory is (incorrectly) being use to build things in
> the build tree.
>
> This is also a problem for cross-compilation.
>
make DESTDIR=/foo/bar/whereever almost corrects those two. I had
the .mk stuff to a point once that it did, too bad I had lots of
other things that these new .mk files broke :-(.
This requires corrections of the CC command to have -nostdinc
-nostdinc++ and -I${DESTDIR}{INCLUDEROOT}. The only requires
about two dozen patches to make work.
> The kernel build seems unable to take precompiled object files
> into account when sources are unavailable. This is necessary for
> the provision of binary-only pieces (like commercial drivers).
It is not the goal of FreeBSD to support binary only pieces,
and I think it would go against any charter I would be willing
to sign. But it is easy to add, a simple make .PATH statement
will do it.
> The kernel build also seems to lack a dependency graph for the
> rebuilding of some objects based on optioning things in, or the
> delete/config/make_depend/make dance wouldn't be necessary.
You ever tried to solve that problem? It can be done, but
you'll find that very few sources in the kernel without
*some* #ifdef in it.
--
Rod Grimes rgrimes@gndrsh.aac.dev.com
Accurate Automation Company Custom computers for FreeBSD
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?199503231731.JAA01203>