Annotation of GNUtools/emacs/src/s-xenix.h, revision 1.1

1.1     ! root        1: /* Definitions file for GNU Emacs running SCO Xenix 386 Release 2.2
        !             2:    Copyright (C) 1988 Free Software Foundation, Inc.
        !             3: 
        !             4: This file is part of GNU Emacs.
        !             5: 
        !             6: GNU Emacs is free software; you can redistribute it and/or modify
        !             7: it under the terms of the GNU General Public License as published by
        !             8: the Free Software Foundation; either version 1, or (at your option)
        !             9: any later version.
        !            10: 
        !            11: GNU Emacs is distributed in the hope that it will be useful,
        !            12: but WITHOUT ANY WARRANTY; without even the implied warranty of
        !            13: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
        !            14: GNU General Public License for more details.
        !            15: 
        !            16: You should have received a copy of the GNU General Public License
        !            17: along with GNU Emacs; see the file COPYING.  If not, write to
        !            18: the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
        !            19: 
        !            20: /*
        !            21:  *     Define symbols to identify the version of Unix this is.
        !            22:  *     Define all the symbols that apply correctly.
        !            23:  */
        !            24: 
        !            25: /* #define UNIPLUS */
        !            26: #define XENIX
        !            27: #define USG5
        !            28: #define USG
        !            29: /* #define HPUX */
        !            30: /* #define UMAX */
        !            31: /* #define BSD4_1 */
        !            32: /* #define BSD4_2 */
        !            33: /* #define BSD4_3 */
        !            34: /* #define BSD */
        !            35: /* #define VMS */
        !            36: 
        !            37: /* SYSTEM_TYPE should indicate the kind of system you are using.
        !            38:  It sets the Lisp variable system-type.  */
        !            39: 
        !            40: #define SYSTEM_TYPE "xenix"
        !            41: 
        !            42: /* NOMULTIPLEJOBS should be defined if your system's shell
        !            43:  does not have "job control" (the ability to stop a program,
        !            44:  run some other program, then continue the first one).  */
        !            45: 
        !            46: #define NOMULTIPLEJOBS
        !            47: 
        !            48: /* Emacs can read input using SIGIO and buffering characters itself,
        !            49:    or using CBREAK mode and making C-g cause SIGINT.
        !            50:    The choice is controlled by the variable interrupt_input.
        !            51:    Define INTERRUPT_INPUT to make interrupt_input = 1 the default (use SIGIO)
        !            52: 
        !            53:    SIGIO can be used only on systems that implement it (4.2 and 4.3).
        !            54:    CBREAK mode has two disadvatages
        !            55:      1) At least in 4.2, it is impossible to handle the Meta key properly.
        !            56:         I hear that in system V this problem does not exist.
        !            57:      2) Control-G causes output to be discarded.
        !            58:         I do not know whether this can be fixed in system V.
        !            59: 
        !            60:    Another method of doing input is planned but not implemented.
        !            61:    It would have Emacs fork off a separate process
        !            62:    to read the input and send it to the true Emacs process
        !            63:    through a pipe.
        !            64: */
        !            65: 
        !            66: /* #define INTERRUPT_INPUT */
        !            67: 
        !            68: /* Letter to use in finding device name of first pty,
        !            69:   if system supports pty's.  'p' means it is /dev/ptyp0  */
        !            70: 
        !            71: /* #define FIRST_PTY_LETTER 'p' */
        !            72: 
        !            73: /*
        !            74:  *     Define HAVE_TERMIO if the system provides sysV-style ioctls
        !            75:  *     for terminal control.
        !            76:  */
        !            77: 
        !            78: #define HAVE_TERMIO
        !            79: 
        !            80: /*
        !            81:  *     Define HAVE_TIMEVAL if the system supports the BSD style clock values.
        !            82:  *     Look in <sys/time.h> for a timeval structure.
        !            83:  */
        !            84: 
        !            85: /* #define HAVE_TIMEVAL */
        !            86:  
        !            87: /*
        !            88:  *     Define HAVE_SELECT if the system supports the `select' system call.
        !            89:  */
        !            90: 
        !            91: /* #define HAVE_SELECT */
        !            92: 
        !            93: /*
        !            94:  *     Define HAVE_PTYS if the system supports pty devices.
        !            95:  */
        !            96: 
        !            97: /* #define HAVE_PTYS */
        !            98: 
        !            99: /* Define HAVE_SOCKETS if system supports 4.2-compatible sockets.  */
        !           100: 
        !           101: /* #define HAVE_SOCKETS */
        !           102: 
        !           103: /*
        !           104:  *     Define NONSYSTEM_DIR_LIBRARY to make Emacs emulate
        !           105:  *      The 4.2 opendir, etc., library functions.
        !           106:  */
        !           107: 
        !           108: #define NONSYSTEM_DIR_LIBRARY
        !           109: 
        !           110: /* Define this symbol if your system has the functions bcopy, etc. */
        !           111: 
        !           112: /* #define BSTRING */
        !           113: 
        !           114: /* subprocesses should be defined if you want to
        !           115:  have code for asynchronous subprocesses
        !           116:  (as used in M-x compile and M-x shell).
        !           117:  This is supposed to work now on system V release 2.  */
        !           118: 
        !           119: #define subprocesses
        !           120: 
        !           121: /* If your system uses COFF (Common Object File Format) then define the
        !           122:    preprocessor symbol "COFF". */
        !           123: 
        !           124: /* #define COFF */
        !           125: 
        !           126: /* Xenix requires completely different unexec code
        !           127:    which lives in a separate file.  Specify the file name.  */
        !           128: 
        !           129: #define UNEXEC unexenix.o
        !           130: 
        !           131: /* define MAIL_USE_FLOCK if the mailer uses flock
        !           132:    to interlock access to /usr/spool/mail/$USER.
        !           133:    The alternative is that a lock file named
        !           134:    /usr/spool/mail/$USER.lock.  */
        !           135: 
        !           136: #define MAIL_USE_FLOCK
        !           137: 
        !           138: /* Define CLASH_DETECTION if you want lock files to be written
        !           139:    so that Emacs can tell instantly when you try to modify
        !           140:    a file that someone else has modified in his Emacs.  */
        !           141: 
        !           142: /* The way this is implemented requires long filenames... */
        !           143: /* #define CLASH_DETECTION */
        !           144: 
        !           145: /* Define SHORTNAMES if the C compiler can distinguish only
        !           146:    short names.  It means that the stuff in ../shortnames
        !           147:    must be run to convert the long names to short ones.  */
        !           148: 
        !           149: /* #define SHORTNAMES */
        !           150: 
        !           151: /* We do not use the Berkeley (and usg5.2.2) interface to nlist.  */
        !           152: 
        !           153: /* #define NLIST_STRUCT */
        !           154: 
        !           155: /* Compensate for one incompatibility between Xenix and V.0.  */
        !           156: #define n_zeroes n_name[0]
        !           157: 
        !           158: /* The file containing the kernel's symbol table is called /xenix.  */
        !           159: 
        !           160: #define KERNEL_FILE "/xenix"
        !           161: 
        !           162: /* The symbol in the kernel where the load average is found
        !           163:    is named avenrun.  */
        !           164: 
        !           165: #define LDAV_SYMBOL "_avenrun"
        !           166: 
        !           167: /* Special hacks needed to make Emacs run on this system.  */
        !           168: 
        !           169: /*
        !           170:  *     Make the sigsetmask function go away.  Don't know what the
        !           171:  *     ramifications of this are, but doesn't seem possible to
        !           172:  *     emulate it properly anyway at this point.
        !           173:  */
        !           174: 
        !           175: #define sigsetmask(mask)       /* Null expansion */
        !           176: 
        !           177: /* setjmp and longjmp can safely replace _setjmp and _longjmp,
        !           178:    but they will run slower.  */
        !           179: 
        !           180: #define _setjmp setjmp
        !           181: #define _longjmp longjmp
        !           182: 
        !           183: /* On USG systems the system calls are interruptable by signals
        !           184:  that the user program has elected to catch.  Thus the system call
        !           185:  must be retried in these cases.  To handle this without massive
        !           186:  changes in the source code, we remap the standard system call names
        !           187:  to names for our own functions in sysdep.c that do the system call
        !           188:  with retries. */
        !           189: 
        !           190: #define read sys_read
        !           191: #define open sys_open
        !           192: #define write sys_write
        !           193: 
        !           194: #define INTERRUPTABLE_OPEN
        !           195: #define INTERRUPTABLE_IO
        !           196: 
        !           197: /* On USG systems these have different names */
        !           198: 
        !           199: #define index strchr
        !           200: #define rindex strrchr
        !           201: 
        !           202: /* Compiler bug bites on many systems when default ADDR_CORRECT is used.  */
        !           203: 
        !           204: #define ADDR_CORRECT(x) (x)
        !           205: 
        !           206: /* Prevent -lg from being used for debugging.  Not implemented?  */
        !           207: 
        !           208: #define LIBS_DEBUG
        !           209: 
        !           210: /* Switches for linking temacs.  */
        !           211: 
        !           212: #define LD_SWITCH_SYSTEM -i
        !           213: 
        !           214: /* Xenix implements sysV style IPC.  */
        !           215: 
        !           216: #define HAVE_SYSVIPC
        !           217: 
        !           218: /* Use terminfo instead of termcap.  */
        !           219: 
        !           220: /* Tell Emacs to use Terminfo.  */
        !           221: 
        !           222: #define TERMINFO
        !           223: 
        !           224: /* Tell Xenix curses to BE Terminfo.  */
        !           225: #define M_TERMINFO
        !           226: 
        !           227: /* Control program name for etc/fakemail to run.  */
        !           228: 
        !           229: #ifdef SMAIL
        !           230: #define MAIL_PROGRAM_NAME "/usr/bin/smail -q0"
        !           231: #else
        !           232: #define MAIL_PROGRAM_NAME "/usr/lib/mail/execmail"
        !           233: #endif

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