portability of -L<relative_directory_name>

[Bruno Haible]

Hi,

A while ago someone said that if in a build directory I have a (not yet
installed) ../lib/libfoo.la, to link with this library I should *not* use

   libtool ... -L../lib -lfoo

but rather mention the .la file explicitly:

   libtool ... -L../lib ../lib/libfoo.la
or
   libtool ... ../lib/libfoo.la

Now I see the same advice in the second-to-last paragraph of
  http://wiki.finkproject.org/index.php/Fink:Porting_Notes

Is it true that references to non-yet-installed libool libraries should not be
made with -l? If so, it would be worth to document this in the libtool
documentation. I didn't find it there.

Bruno