Douglas Kemp : 1991-June-07

	Taken from SMILDON.WISC.CS.EDU (128.015.1.214) using 
anonymous ftp on 1991-June-07

ACTIONS :
 1) makdir RELS
 2) added PD_Errno and PD_SysGlob to cpty.a
 3) added defsfile
 4) added path.h (with extras for ptyman) =>
    a) changed ptyman.c and funcs.c to use local path.h
 5) removed reference to ST (Atari) in Makefile

NOTE : The binary produced for ptyman is smaller/different to the binary
 loaded from the ftp site (so these sources may be out of date or the
 binaries were generated by different compiler editions). Suggest that you
 use the binaries from the BIN directory - but the version built using the
 sources also worked fine.

MAKE :
 make 
 make PtyDrv
 make pty
 make tty

SCREEN :
 I modified the screen program (see public domain software)
 to use this type of pty/tty (i.e. /pty/x00-x31 and /tty/x00-x31)
