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Annotation of 43BSD/contrib/emacs/src/s-template.h, revision 1.1

1.1     ! root        1: /* Template for s- header files.
        !             2:    This file describes the parameters that s- files should define or not.
        !             3:    Copyright (C) 1985 Richard M. Stallman.
        !             4: 
        !             5: This file is part of GNU Emacs.
        !             6: 
        !             7: GNU Emacs is distributed in the hope that it will be useful,
        !             8: but WITHOUT ANY WARRANTY.  No author or distributor
        !             9: accepts responsibility to anyone for the consequences of using it
        !            10: or for whether it serves any particular purpose or works at all,
        !            11: unless he says so in writing.  Refer to the GNU Emacs General Public
        !            12: License for full details.
        !            13: 
        !            14: Everyone is granted permission to copy, modify and redistribute
        !            15: GNU Emacs, but only under the conditions described in the
        !            16: GNU Emacs General Public License.   A copy of this license is
        !            17: supposed to have been given to you along with GNU Emacs so you
        !            18: can know your rights and responsibilities.  It should be in a
        !            19: file named COPYING.  Among other things, the copyright notice
        !            20: and this notice must be preserved on all copies.  */
        !            21: 
        !            22: 
        !            23: /*
        !            24:  *     Define symbols to identify the version of Unix this is.
        !            25:  *     Define all the symbols that apply correctly.
        !            26:  */
        !            27: 
        !            28: /* #define UNIPLUS */
        !            29: /* #define USG5 */
        !            30: /* #define USG */
        !            31: /* #define HPUX */
        !            32: /* #define UMAX */
        !            33: /* #define BSD4_1 */
        !            34: /* #define BSD4_2 */
        !            35: /* #define BSD4_3 */
        !            36: /* #define BSD */
        !            37: /* #define VMS */
        !            38: 
        !            39: /* SYSTEM_TYPE should indicate the kind of system you are using.
        !            40:  It sets the Lisp variable system-type.  */
        !            41: 
        !            42: #define SYSTEM_TYPE "berkeley-unix"
        !            43: 
        !            44: /* NOMULTIPLEJOBS should be defined if your system's shell
        !            45:  does not have "job control" (the ability to stop a program,
        !            46:  run some other program, then continue the first one).  */
        !            47: 
        !            48: /* #define NOMULTIPLEJOBS */
        !            49: 
        !            50: /* Emacs can read input using SIGIO and buffering characters itself,
        !            51:    or using CBREAK mode and making C-g cause SIGINT.
        !            52:    The choice is controlled by the variable interrupt_input.
        !            53:    Define INTERRUPT_INPUT to make interrupt_input = 1 the default (use SIGIO)
        !            54: 
        !            55:    SIGIO can be used only on systems that implement it (4.2 and 4.3).
        !            56:    CBREAK mode has two disadvatages
        !            57:      1) At least in 4.2, it is impossible to handle the Meta key properly.
        !            58:         I hear that in system V this problem does not exist.
        !            59:      2) Control-G causes output to be discarded.
        !            60:         I do not know whether this can be fixed in system V.
        !            61: 
        !            62:    Another method of doing input is planned but not implemented.
        !            63:    It would have Emacs fork off a separate process
        !            64:    to read the input and send it to the true Emacs process
        !            65:    through a pipe.
        !            66: */
        !            67: 
        !            68: #define INTERRUPT_INPUT
        !            69: 
        !            70: /* Letter to use in finding device name of first pty,
        !            71:   if system supports pty's.  'a' means it is /dev/ptya0  */
        !            72: 
        !            73: #define FIRST_PTY_LETTER 'a'
        !            74: 
        !            75: /*
        !            76:  *     Define HAVE_TIMEVAL if the system supports the BSD style clock values.
        !            77:  *     Look in <sys/time.h> for a timeval structure.
        !            78:  */
        !            79: 
        !            80: #define HAVE_TIMEVAL
        !            81: 
        !            82: /*
        !            83:  *     Define HAVE_SELECT if the system supports the `select' system call.
        !            84:  */
        !            85: 
        !            86: /* #define HAVE_SELECT */
        !            87: 
        !            88: /*
        !            89:  *     Define HAVE_PTYS if the system supports pty devices.
        !            90:  */
        !            91: 
        !            92: #define HAVE_PTYS
        !            93: 
        !            94: /*
        !            95:  *     Define NONSYSTEM_DIR_LIBRARY to make Emacs emulate
        !            96:  *      The 4.2 opendir, etc., library functions.
        !            97:  */
        !            98: 
        !            99: #define NONSYSTEM_DIR_LIBRARY
        !           100: 
        !           101: /* Define this symbol if your system has the functions bcopy, etc. */
        !           102: 
        !           103: #define BSTRING
        !           104: 
        !           105: /* subprocesses should be defined if you want to
        !           106:    have code for asynchronous subprocesses
        !           107:    (as used in M-x compile and M-x shell).
        !           108:    This is generally OS dependent, and not supported
        !           109:    under most USG systems. */
        !           110: 
        !           111: #define subprocesses
        !           112: 
        !           113: /* If your system uses COFF (Common Object File Format) then define the
        !           114:    preprocessor symbol "COFF". */
        !           115: 
        !           116: /* #define COFF */
        !           117: 
        !           118: /* define MAIL_USE_FLOCK if the mailer uses flock
        !           119:    to interlock access to /usr/spool/mail/$USER.
        !           120:    The alternative is that a lock file named
        !           121:    /usr/spool/mail/$USER.lock.  */
        !           122: 
        !           123: #define MAIL_USE_FLOCK
        !           124: 
        !           125: /* Define CLASH_DETECTION if you want lock files to be written
        !           126:    so that Emacs can tell instantly when you try to modify
        !           127:    a file that someone else has modified in his Emacs.  */
        !           128: 
        !           129: #define CLASH_DETECTION
        !           130: 
        !           131: /* Here, on a separate page, add any special hacks needed
        !           132:    to make Emacs work on this system.  For example,
        !           133:    you might define certain system call names that don't
        !           134:    exist on your system, or that do different things on
        !           135:    your system and must be used only through an encapsulation
        !           136:    (Which you should place, by convention, in sysdep.c).  */
        !           137: 
        !           138: /* Some compilers tend to put everything declared static
        !           139:    into the initialized data area, which becomes pure after dumping Emacs.
        !           140:    On these systems, you must #define static as nothing to foil this.
        !           141:    Note that emacs carefully avoids static vars inside functions.  */
        !           142: 
        !           143: #define static

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