Change 588 on 2000/09/04 by <gbarr@pobox.com> (Graham Barr)

	Check for /dev/ptmx and /dev/pts instead of testing defined(SVR4)

Change 587 on 2000/09/04 by <gbarr@pobox.com> (Graham Barr)

	Make ttyname just warn when it is not implemented instead of croak

Change 586 on 2000/09/04 by <gbarr@pobox.com> (Graham Barr)

	Include <sys/modem.h> for HPUX

Change 585 on 2000/09/04 by <gbarr@pobox.com> (Graham Barr)

	Makefile.PL
	- Fix to how cc is called

Change 461 on 2000/03/29 by <gbarr@pobox.com> (Graham Barr)

	Release 0.03

Change 460 on 2000/03/29 by <gbarr@pobox.com> (Graham Barr)

	General cleanup and added PPD stuff into Makefile.PL

Change 310 on 1999/05/10 by <gbarr@pobox.com> (Graham Barr)

	- Removed the need for Configure by implementing a test in Makefile.PL
	- The existance of constants are now checked at import time, so @EXPORT
	  had to be renamed to @EXPORT_OK. ie noting is imported by default