13.3.4 Multiple dependencies
On most modern platforms the order that dependent libraries are listed
has no effect on object generation. In theory, there are platforms
which require libraries which provide missing symbols to other libraries
to listed after those libraries whose symbols they provide.
Particularly, if a pair of static archives each resolve some of the
other's symbols, it might be necessary to list one of those archives
both before and after the other one. Libtool does not currently cope
with this situation well, since dupicate libraries are removed from
the link line by default. Libtool provides the command line option
`--preserve-dup-deps' to preserve all duplicate dependencies
in cases where it is necessary.