[xemacs-hg @ 2002-04-03 10:47:37 by ben] fix tty problem et al internals/internals.texi: Add section on correctly merging a branch back into the trunk. console-tty.c, eval.c, event-unixoid.c, file-coding.c, file-coding.h, lisp.h, print.c, sysdep.c: Fix data corruption error in print.c from print_depth becoming negative. Borrow primitives internal_bind_int, internal_bind_lisp_object from my stderr-proc ws, soon to be integrated; use them to properly bind print_depth et al. First fix for TTY problem. The basic problem is I switched things so that the TTY I/O is filtered through a coding system, for the support of kterm and such, that speak JIS or similar encodings. (#### I ***swear*** I had this working way back in 19.12.) Anyway, this introduced buffering issues, in which instead of one char being read, it tried to read 1024 chars. I tried setting the stdin descriptor non-blocking, but it doesn't appear to work on Cygwin. (#### Andy, do you know anything about this?) So I fixed it elsewhere. If you get weirdness on the TTY, look in console-tty.c and see how it gets the coding system; maybe there's a way to change it (and if not, there should be!). Also fix warning in sysdep.c.

/* Synched up with: FSF 19.31. */

#include "sunos4-1.h"

#if 0
/* XEmacs: FSF 19.31 removes this.  Let's just comment it out. */
/* TERMIOS is broken under SunOS??

   Someone says: This causes failure in process_send_signal (tcgetattr
   loses) and may also cause hanging at Emacs startup when parent is
   not a job control shell.  */
/* murray@chemical-eng.edinburgh.ac.uk says this works, and avoids
   the problem of spurious ^M in subprocess output.  */
#undef HAVE_TERMIOS
#endif

#if 0
/* XEmacs: FSF 19.31 mistakenly reenables this. */
/* jik@gza.com says this works now.  */
/* The bug that corrupts GNU malloc's memory pool is fixed in SunOS 4.1.3. */

#undef SYSTEM_MALLOC
#endif /* 0 */

/* barrie@calvin.demon.co.uk says memmove is missing.  */
#ifndef SYSTEM_MALLOC
#define MEMMOVE_MISSING
#endif

/* A reliable source says this is broken through SunOS 4.1.3 */
/* but not SunOS 4.1.4 */
#ifdef BROKEN_SIGIO
#undef BROKEN_SIGIO
#endif