Re: Including static libraries in shared libraries with libtool.

[Joe Orton]

On Sun, Sep 26, 2004 at 07:12:33PM -0400, Sam Varshavchik wrote:
> Howard Chu writes:
> 
> >One more time, shouting into the senseless void...
> >
> >If these so-called "convenience" libraries are meant to be linked in 
> >whole, they should not be ar archives at all. You should just link them 
> >directly into a relocatable object file:
> >    ld -r -o <convenience.obj> *.o
> 
> And do we know that all platforms have a program called "ld", then 
> implements the "-r" option with the given semantics?

ld -r support is apparently universal on Unixes, but you're right it is
incorrect to just invoke ld directly like that, it will break on
multi-ABI platforms (where you need to use, e.g. ld -m <something> -r)

You can get libtool to DTRT by using:

  libtool --mode=link $(CC) -o libfoo.lo foo.lo bar.lo

but I'm not 100% certain this is a supported libtool interface (link
target is .lo => use a partial link), I couldn't find it in the docs
anywhere.

It would be good to see a definitive statement on this from the libtool
maintainers.

joe