not introduce (hopefully) any functional changes but gets rid of
the #ifdef spaghetti pcvt suffered from more and more over the
years.
Several no more used parts of the source were removed, others
which are used by default are now non-optional components:
PCVT_NETBSD removed completety
PCVT_FREEBSD removed option, code is now standard
PCVT_KBD_FIFO removed option, code is now standard
PCVT_EMU_MOUSE removed completety
PCVT_SW0CNOUTP removed completety
PCVT_PORTIO_DELAY obsolete, removed
PCVT_KEYBDID removed option, code is now standard
PCVT_SIGWINCH removed option, code is now standard
PCVT_PALFLICKER removed completety
PCVT_WAITRETRACE removed completety
PCVT_NOFASTSCROLL removed option, code is now standard
PCVT_USL_VT_COMPAT removed the "old" non-vt Xserver code completely,
depending on XSERVER, this code is now standard.
Pcvt userland cleanup will follow as well as newbusifying the
kernel part.
Aaron Campbell <aaron@cs.dal.ca>.
Use SHIFT-PgUp and SHIFT-PgDn to scroll back and forward.
Aarons original code was enhanced to have a separate scrollbuffer
for every virtual terminal and to preserve the screen contents
when switching screen sizes.
The scrollbuffer size is currently fixed at 8 pages but this
will be made configurable through the use of scon(1) in the
near future.
For pcvt_kbd.h, a longstanding compiler warning was fixed by
using excessive backetizing of the key2ascii[] table.
