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code.delx.au - gnu-emacs/blob - src/m/ibmrs6000.h
1 /* R2 AIX machine/system dependent defines
2 Copyright (C) 1988, 2001, 2002, 2003, 2004, 2005, 2006, 2007,
3 2008 Free Software Foundation, Inc.
5 This file is part of GNU Emacs.
7 GNU Emacs is free software: you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation, either version 3 of the License, or
10 (at your option) any later version.
12 GNU Emacs is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
21 /* The following line tells the configuration script what sort of
22 operating system this machine is likely to run.
23 USUAL-OPSYS="aix3-1" */
25 /* Define NO_ARG_ARRAY if you cannot take the address of the first of a
26 * group of arguments and treat it as an array of the arguments. */
30 /* Now define a symbol for the cpu type, if your compiler
31 does not define it automatically. */
36 #define UNEXEC unexaix.o
39 /* Define addresses, macros, change some setup for dump */
43 /* The data segment in this machine always starts at address 0x20000000.
44 An address of data cannot be stored correctly in a Lisp object;
45 we always lose the high bits. We must tell XPNTR to add them back. */
48 #define TEXT_START 0x10000000
50 #define DATA_START 0x20000000
51 #define WORDS_BIG_ENDIAN
52 #define DATA_SEG_BITS 0x20000000
54 /* sfreed@unm.edu says add -bI:/usr/lpp/X11/bin/smt.exp for AIX 3.2.4. */
55 /* marc@sti.com (Marc Pawliger) says ibmrs6000.inp is needed to avoid
56 linker error for updated X11R5 libraries, which references pthread library
57 which most machines don't have. We use the name .inp instead of .imp
58 because .inp is a better convention to use in make-dist for naming
59 random input files. */
60 #ifdef THIS_IS_MAKEFILE /* Don't use this in configure. */
61 #define LD_SWITCH_MACHINE -Wl,-bnodelcsect
62 #endif /* THIS_IS_MAKEFILE */
65 /* AIX supposedly doesn't use this interface, but on the RS/6000
66 it apparently does. */
70 /* -lpthreads seems to be necessary for Xlib in X11R6, and should be harmless
71 on older versions of X where it happens to exist. */
72 #ifdef HAVE_LIBPTHREADS
73 #define LIBS_MACHINE -lrts -lIM -liconv -lpthreads
75 /* IBM's X11R5 use -lIM and -liconv in AIX 3.2.2. */
76 #define LIBS_MACHINE -lrts -lIM -liconv
80 #undef WORDS_BIG_ENDIAN
81 #define DATA_SEG_BITS 0
86 /*** BUILD 9008 - FIONREAD problem still exists in X-Windows. ***/
87 #define BROKEN_FIONREAD
88 /* As we define BROKEN_FIONREAD, SIGIO will be undefined in systty.h.
89 But, on AIX, SIGAIO, SIGPTY, and SIGPOLL are defined as SIGIO,
90 which causes compilation error at init_signals in sysdep.c. So, we
91 define these macros so that syssignal.h detects them and undefine
92 SIGAIO, SIGPTY and SIGPOLL. */
95 #define BROKEN_SIGPOLL
99 /* arch-tag: 028318ee-a7ae-4a08-804d-cc1e6588d003
100 (do not change this comment) */