Re: circular link dependency: libmailutils.a and libmailbox.a

[Alain Magloire]

> 
> mu_argp.c, in particular, makes calls into libmailbox.a. This has
> tended to work because those functions are in mutil.c, and mutil.c
> tends to have been needed by something in mailbox/ before the
> linker got to the libmailutils.a. But, its just lucky, and now
> I'm unlucky.

- mailutils/lib/* are just replacement functions for things
  like strcasecmp () etc .. or functions shared by the
  utilities.

- mailutils/mailbox/* should not need anything explicitely from
  mailutils/lib/*.  mailbox/* is under LGPL.
  In theory, if you have a POSIX compliant system mailutils/mailbox
  will build standalone.

> 
> Can we move mu_argp.c/h into mailbox/?

This seems like code only use by the utilities(frm, mail, ... etc)
not mailbox.  I do not see any reference to mu_argp in mutil.c