Re: automake warning using lib_LTLIBRARIES

[Roger Leigh]

On Sat, Jan 26, 2002 at 01:37:26PM +0100, Alexandre Duret-Lutz wrote:

> If Automake sees `dir_PRIMARY = fubar' it knows that it must
> output some rules to build `fubar', even if `dir_PRIMARY' is
> defined conditionally.
> 
> However if it sees `dir_PRIMARY = @fubar@', Automake can't guess
> what address@hidden@' will be substituted with, and can't output any
> rule to build those unknown targets.  That's where the
> `EXTRA_PRIMARY' helps: it list those targets for which Automake
> should output build rules.
> 
> Now, you're right that with most primaries adding a superfluous
> EXTRA_PRIMARY shouldn't hurt, that's like telling twice to
> Automake you need building rules for the listed targets.
> 
> *_LTLIBRARIES is different because in order to build the library
> you need to know where it will be installed (and pass the
> appropriate -rpath option to libtool).  That means you can't
> install a library in two different places.
> 
> >From `foo_LTLIBRARIES = mumble.la' Automake knows that
> `mumble.la' will be installed in `$(foodir)'; but from
> `EXTRA_LTLIBRARIES = mumble.la' it cannot know where the
> `mumble.la' will be installed, it could be somewhere else (so
> this justifies the error message).  In the latter case, you have
> to play some _LDADD trickery to add the right -rpath flag
> manually, as said in the Automake manual.

Thanks, that really explains it well.  I was using -rpath too, so found
the error a bit confusing.

Many thanks,
Roger

-- 
Roger Leigh
                ** Registration Number: 151826, http://counter.li.org **
                Need Epson Stylus Utilities? http://gimp-print.sourceforge.net/
                GPG Public Key: 0x25BFB848 available on public keyservers

pgp6ZE49xPrro.pgp
Description: PGP signature