18.3 Support for Multilibs
Automake has support for an obscure feature called multilibs. A
multilib is a library which is built for multiple different ABIs
at a single time; each time the library is built with a different target
flag combination. This is only useful when the library is intended to
be cross-compiled, and it is almost exclusively used for compiler
The multilib support is still experimental. Only use it if you are
familiar with multilibs and can debug problems you might encounter.