Re: prog_DEPENDENCIES

[Bob Rossi]

On Mon, Jan 29, 2007 at 07:52:02PM +0100, Ralf Wildenhues wrote:
> > BTW, all the _DEPENDENCIES that I'm talking about are
> > libraries that are built from my own project, but not necessarily in the
> > same Makefile.
> 
> OK.  You will have to make sure these libraries exist and are up to
> date, when they are needed.  Typically by recursing to that other
> Makefile earlier (i.e., by way of SUBDIRS ordering).
> 
> For libraries built from the same Makefile, please note that typically,
> make implementations are not smart enough to discover that
>   $(top_builddir)/sub/libfoo.la  (with top_builddir = ..)
>   ./libfoo.la
>   libfoo.la
> 
> all refer to the same file, even if they are the same file.  So if you
> have a rule for the latter, but depend upon one of the former two,
> things can break.  GNU make identifies the latter two.

Hi,

One other question. This is in regards to libraries depending on
libraries. If library B depends on library A, do I have to put a 
  libB_a_DEPENDENCIES = $(top_builddir)/..../libA.a
or does just having the SUBDIRS traverse in the correct order work?

Thanks,
Bob Rossi