Annotation of 43BSDReno/contrib/emacs-18.55/src/s-iris3-6.h, revision 1.1.1.1

1.1       root        1: /* Definitions file for GNU Emacs running on Silicon Graphics system 3.6.
                      2:    Copyright (C) 1987 Free Software Foundation, Inc.
                      3: 
                      4: This file is part of GNU Emacs.
                      5: 
                      6: GNU Emacs is distributed in the hope that it will be useful,
                      7: but WITHOUT ANY WARRANTY.  No author or distributor
                      8: accepts responsibility to anyone for the consequences of using it
                      9: or for whether it serves any particular purpose or works at all,
                     10: unless he says so in writing.  Refer to the GNU Emacs General Public
                     11: License for full details.
                     12: 
                     13: Everyone is granted permission to copy, modify and redistribute
                     14: GNU Emacs, but only under the conditions described in the
                     15: GNU Emacs General Public License.   A copy of this license is
                     16: supposed to have been given to you along with GNU Emacs so you
                     17: can know your rights and responsibilities.  It should be in a
                     18: file named COPYING.  Among other things, the copyright notice
                     19: and this notice must be preserved on all copies.  */
                     20: 
                     21: 
                     22: /*
                     23:  *     Define symbols to identify the version of Unix this is.
                     24:  *     Define all the symbols that apply correctly.
                     25:  */
                     26: 
                     27: #define USG
                     28: #define USG5
                     29: #define IRIS
                     30: 
                     31: /* SYSTEM_TYPE should indicate the kind of system you are using.
                     32:  It sets the Lisp variable system-type.  */
                     33: 
                     34: #define SYSTEM_TYPE "silicon-graphics-unix"
                     35: 
                     36: /* nomultiplejobs should be defined if your system's shell
                     37:  does not have "job control" (the ability to stop a program,
                     38:  run some other program, then continue the first one).  */
                     39: 
                     40: #define NOMULTIPLEJOBS
                     41: 
                     42: /* Default is to set interrupt_input to 0: don't do input buffering within Emacs */
                     43: 
                     44: /* #define INTERRUPT_INPUT */
                     45: 
                     46: /* Letter to use in finding device name of first pty,
                     47:   if system supports pty's.  'a' means it is /dev/ptya0  */
                     48: 
                     49: #define FIRST_PTY_LETTER 'a'
                     50: 
                     51: /*
                     52:  *     Define HAVE_TERMIO if the system provides sysV-style ioctls
                     53:  *     for terminal control.
                     54:  */
                     55: 
                     56: #define HAVE_TERMIO
                     57: 
                     58: /*
                     59:  *     Define HAVE_TIMEVAL if the system supports the BSD style clock values.
                     60:  *     Look in <sys/time.h> for a timeval structure.
                     61:  */
                     62: 
                     63: #define HAVE_TIMEVAL
                     64: 
                     65: /* `utime' system call doesn't understand timevals.  */
                     66: 
                     67: #define IRIS_UTIME
                     68:  
                     69: /*
                     70:  *     Define HAVE_SELECT if the system supports the `select' system call.
                     71:  */
                     72: 
                     73: #define HAVE_SELECT
                     74: 
                     75: /*
                     76:  *     Define HAVE_PTYS if the system supports pty devices.
                     77:  */
                     78: 
                     79: #define HAVE_PTYS
                     80: 
                     81: /* Define HAVE_SOCKETS if system supports 4.2-compatible sockets.  */
                     82: 
                     83: #define HAVE_SOCKETS
                     84: 
                     85: /*
                     86:  *     Define NONSYSTEM_DIR_LIBRARY to make Emacs emulate
                     87:  *      The 4.2 opendir, etc., library functions.
                     88:  */
                     89: 
                     90: /* #define NONSYSTEM_DIR_LIBRARY */
                     91: 
                     92: /* Define this symbol if your system has the functions bcopy, etc. */
                     93: 
                     94: #define BSTRING
                     95: 
                     96: /* subprocesses should be defined if you want to
                     97:    have code for asynchronous subprocesses
                     98:    (as used in M-x compile and M-x shell).
                     99:    This is generally OS dependent, and not supported
                    100:    under most USG systems. */
                    101: 
                    102: #define subprocesses
                    103: 
                    104: /* If your system uses COFF (Common Object File Format) then define the
                    105:    preprocessor symbol "COFF". */
                    106: 
                    107: /* #define COFF */
                    108: 
                    109: /* define MAIL_USE_FLOCK if the mailer uses flock
                    110:    to interlock access to /usr/spool/mail/$USER.
                    111:    The alternative is that a lock file named
                    112:    /usr/spool/mail/$USER.lock.  */
                    113: 
                    114: /* #define MAIL_USE_FLOCK */
                    115: 
                    116: /* Define CLASH_DETECTION if you want lock files to be written
                    117:    so that Emacs can tell instantly when you try to modify
                    118:    a file that someone else has modified in his Emacs.  */
                    119: 
                    120: /* #define CLASH_DETECTION */
                    121: 
                    122: /* We use the Berkeley (and usg5.2.2) interface to nlist.  */
                    123: 
                    124: #define NLIST_STRUCT
                    125: 
                    126: /* The file containing the kernel's symbol table is called /vmunix.  */
                    127: 
                    128: #define KERNEL_FILE "/vmunix"
                    129: 
                    130: /* The symbol in the kernel where the load average is found
                    131:    is named _avenrun.  */
                    132: 
                    133: #define LDAV_SYMBOL "_avenrun"
                    134: 
                    135: 
                    136: /* Special hacks needed to make Emacs run on this system.  */
                    137: 
                    138: /*
                    139:  *     Make the sigsetmask function go away.  Don't know what the
                    140:  *     ramifications of this are, but doesn't seem possible to
                    141:  *     emulate it properly anyway at this point.
                    142:  */
                    143: 
                    144: #define sigsetmask(mask)       /* Null expansion */
                    145: #define sigblock(x) x
                    146: 
                    147: /* The IRIS defines SIGIO in signal.h, but doesn't implement it. */
                    148: #undef SIGIO
                    149: 
                    150: #define LIBS_MACHINE -lbsd -ldbm -lPW
                    151: #define C_SWITCH_MACHINE -I/usr/include/bsd
                    152: 
                    153: /* setjmp and longjmp can safely replace _setjmp and _longjmp,
                    154:    but they will run slower.  */
                    155: 
                    156: #define _setjmp setjmp
                    157: #define _longjmp longjmp
                    158: 
                    159: /* On USG systems the system calls are interruptable by signals
                    160:  that the user program has elected to catch.  Thus the system call
                    161:  must be retried in these cases.  To handle this without massive
                    162:  changes in the source code, we remap the standard system call names
                    163:  to names for our own functions in sysdep.c that do the system call
                    164:  with retries. */
                    165: 
                    166: #define read sys_read
                    167: #define open sys_open
                    168: #define write sys_write
                    169: 
                    170: #define INTERRUPTABLE_OPEN
                    171: #define INTERRUPTABLE_IO
                    172: 
                    173: /* On USG systems these have different names */
                    174: 
                    175: #define index strchr
                    176: #define rindex strrchr
                    177: 
                    178: /* USG systems tend to put everything declared static
                    179:    into the initialized data area, which becomes pure after dumping Emacs.
                    180:    Foil this.  Emacs carefully avoids static vars inside functions.  */
                    181: 
                    182: /* #define static */
                    183: 
                    184: /* Compiler bug bites on many systems when default ADDR_CORRECT is used.  */
                    185: 
                    186: #define ADDR_CORRECT(x) (int)((char *)(x) - (char*)0)
                    187: 
                    188: /* some errno.h's don't actually allocate the variable itself */
                    189: 
                    190: #define NEED_ERRNO

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