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- /* m- file for ibm ps/2 aix386.
- Copyright (C) 1989 Free Software Foundation, Inc.
-
- This file is part of GNU Emacs.
-
- GNU Emacs is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 1, or (at your option)
- any later version.
-
- GNU Emacs is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with GNU Emacs; see the file COPYING. If not, write to
- the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
-
-
- /* The following three symbols give information on
- the size of various data types. */
-
- #define SHORTBITS 16 /* Number of bits in a short */
-
- #define INTBITS 32 /* Number of bits in an int */
-
- #define LONGBITS 32 /* Number of bits in a long */
-
- /* i386 is not big-endian: lowest numbered byte is least significant. */
-
- /* #undef BIG_ENDIAN */
-
- /* Define NO_ARG_ARRAY if you cannot take the address of the first of a
- * group of arguments and treat it as an array of the arguments. */
-
- /* #define NO_ARG_ARRAY */
-
- /* Define WORD_MACHINE if addresses and such have
- * to be corrected before they can be used as byte counts. */
-
- /* #define WORD_MACHINE */
-
- /* Define how to take a char and sign-extend into an int.
- On machines where char is signed, this is a no-op. */
-
- #define SIGN_EXTEND_CHAR(c) ((signed char)(c))
-
- /* Now define a symbol for the cpu type, if your compiler
- does not define it automatically:
- Ones defined so far include vax, m68000, ns16000, pyramid,
- orion, tahoe, APOLLO and many others */
-
- #define INTEL386
- #define aix386
- #undef SYSTEM_TYPE
- #define SYSTEM_TYPE "ibm-aix-386"
-
- /* Use type int rather than a union, to represent Lisp_Object */
-
- #define NO_UNION_TYPE
-
- /* crt0.c, if it is used, should use the i386-bsd style of entry.
- with no extra dummy args. On USG and XENIX,
- NO_REMAP says this isn't used. */
-
- #define CRT0_DUMMIES bogus_fp,
-
- /* crt0.c should define a symbol `start' and do .globl with a dot. */
-
- #define DOT_GLOBAL_START
-
- /* USG systems do not actually support the load average,
- so disable it for them. */
-
- /* Define CANNOT_DUMP on machines where unexec does not work.
- Then the function dump-emacs will not be defined
- and temacs will do (load "loadup") automatically unless told otherwise. */
-
- /* #define CANNOT_DUMP */
-
- /* Define VIRT_ADDR_VARIES if the virtual addresses of
- pure and impure space as loaded can vary, and even their
- relative order cannot be relied on.
-
- Otherwise Emacs assumes that text space precedes data space,
- numerically. */
-
- /* #define VIRT_ADDR_VARIES */
-
- /* Define addresses, macros, change some setup for dump */
-
- #define NO_REMAP
- #undef static
- /* Since NO_REMAP, problem with statics doesn't exist */
-
- #ifdef USG5_3
- #define TEXT_START 0x00000000
- #else
- #define TEXT_START 0x00400000
- #define TEXT_END 0
- #define DATA_START 0x00800000
- #define DATA_END 0
-
- /* The data segment in this machine always starts at address 0x00800000.
- An address of data cannot be stored correctly in a Lisp object;
- we always lose the high bits. We must tell XPNTR to add them back. */
-
- #define DATA_SEG_BITS 0x00800000
- #endif
-
- #if 0 /* I refuse to promulgate a recommendation that would make
- users unable to debug - RMS. */
- /* delete the following line to foil optimization, enable debugging */
- #define C_DEBUG_SWITCH -O
- #endif
-
- #define BSTRING
- #define HAVE_DUP2
- #define HAVE_GETTIMEOFDAY
- #define HAVE_SELECT
- #define HAVE_TIMEVAL
- #define HAVE_VFORK
- #define HAVE_SETSID
- #define HAVE_TCATTR
-
- /*
- * Define SYSV_SYSTEM_DIR to use the V.3 getdents/readir
- * library functions. Almost, but not quite the same as
- * the 4.2 functions
- */
- #define SYSV_SYSTEM_DIR
- #define HAVE_CLOSEDIR /* This system, unlike ordinary SYSV, has closedir. */
-
- /*
- * Define NONSYSTEM_DIR_LIBRARY to make Emacs emulate
- * The 4.2 opendir, etc., library functions.
- */
- #undef NONSYSTEM_DIR_LIBRARY
-
- /* But don't use utimes() -- it causes SIGSEGV! Use utime() instead. */
- #define USE_UTIME
-
- /* AIX defines FIONREAD, but it does not work. */
- #define BROKEN_FIONREAD
-
- /* This page was added in June 1990. It may be incorrect for some versions
- of aix, so delete it if it causes trouble. */
-
- /* AIX has sigsetmask() */
- #undef sigsetmask
-
- /* AIX386 has BSD4.3 PTYs */
-
- #define HAVE_PTYS
-
- /* AIX has IPC. It also has sockets, and either can be used for client/server.
- I would suggest the client/server code be changed to use HAVE_SOCKETS rather
- than BSD as the conditional if sockets provide any advantages. */
-
- #define HAVE_SYSVIPC
-
- /* AIX has sockets */
-
- #define HAVE_SOCKETS
- /* #define SKTPAIR */ /* SKTPAIR works, but what is advantage over pipes? */
-
- /* Specify the font for X to use. */
-
- #define X_DEFAULT_FONT "8x13"
-
- /* AIX has a wait.h. */
-
- #define HAVE_WAIT_HEADER
-
- /* Data type of load average, as read out of kmem. */
-
- #define LOAD_AVE_TYPE long /* For AIX (sysV) */
-
- /* Convert that into an integer that is 100 for a load average of 1.0 */
-
- #define LOAD_AVE_CVT(x) (int) (((double) (x)/65535.0) * 100.0)
-
- /* Here override various assumptions in ymakefile */
-
- /* Define C_ALLOCA if this machine does not support a true alloca
- and the one written in C should be used instead.
- Define HAVE_ALLOCA to say that the system provides a properly
- working alloca function and it should be used.
- Define neither one if an assembler-language alloca
- in the file alloca.s should be used. */
-
- #ifdef __GNUC__
- #define HAVE_ALLOCA
- #define alloca(n) __builtin_alloca(n)
- #if __GNUC__ < 2
- #define LIB_STANDARD /usr/local/lib/gcc-gnulib -lc
- #endif
- /* -g fails to work, so it is omitted. */
- /* tranle says that -fstrength-reduce does not help. */
- #define C_DEBUG_SWITCH -O
- #else
- #define C_ALLOCA
- #define STACK_DIRECTION -1 /* tell alloca.c which way it grows */
- #define LIBS_MACHINE -lbsd -lrts
- #endif
-
- #define OBJECTS_MACHINE hftctl.o
- #define LD_SWITCH_MACHINE -T0x00400000 -K -e start
-
- #ifdef USG5_3
- #define XICCC
- #define HAVE_GETWD
- #define HAVE_RENAME
- #undef LD_SWITCH_MACHINE
- #define LD_SWITCH_MACHINE -T0x0 -K -e start
-
- /* Things defined in s-usg5-3.h that need to be overridden. */
- #undef NOMULTIPLEJOBS
- #undef BROKEN_TIOCGETC
- #undef LIBX10_SYSTEM
- #undef LIBX11_SYSTEM
- #endif
-
- /* Shared libraries are supported in a patch release of ps/2 1.2.1.
- If the system has them, the user can turn them on, and this code
- will make them work. */
- #ifdef USG_SHARED_LIBRARIES
- #define ORDINARY_LINK
- #undef LIB_STANDARD
- #undef LD_SWITCH_MACHINE
- #if __GNUC__ > 1
- #define LD_SWITCH_MACHINE -shlib
- #endif
- #endif
-