| 1 | /* |
| 2 | Copyright (C) 1999, 2001-2011 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 3 of the License, or |
| 9 | (at your option) 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. If not, see <http://www.gnu.org/licenses/>. */ |
| 18 | |
| 19 | /* Define symbols to identify the version of Unix this is. |
| 20 | Define all the symbols that apply correctly. */ |
| 21 | #define USG /* System III, System V, etc */ |
| 22 | #define USG5 |
| 23 | |
| 24 | /* This symbol should be defined on AIX Version 3 ??????? */ |
| 25 | #ifndef _AIX |
| 26 | #define _AIX |
| 27 | #endif |
| 28 | |
| 29 | /* SYSTEM_TYPE should indicate the kind of system you are using. |
| 30 | It sets the Lisp variable system-type. */ |
| 31 | #define SYSTEM_TYPE "aix" |
| 32 | |
| 33 | /* In AIX, you allocate a pty by opening /dev/ptc to get the master side. |
| 34 | To get the name of the slave side, you just ttyname() the master side. */ |
| 35 | #define PTY_ITERATION for (c = 0; !c ; c++) |
| 36 | #define PTY_NAME_SPRINTF strcpy (pty_name, "/dev/ptc"); |
| 37 | #define PTY_TTY_NAME_SPRINTF strcpy (pty_name, ttyname (fd)); |
| 38 | |
| 39 | /* Define HAVE_PTYS if the system supports pty devices. */ |
| 40 | #define HAVE_PTYS |
| 41 | |
| 42 | /* Define HAVE_SOCKETS if system supports 4.2-compatible sockets. */ |
| 43 | #define HAVE_SOCKETS |
| 44 | \f |
| 45 | /* Special items needed to make Emacs run on this system. */ |
| 46 | |
| 47 | /* AIX doesn't define this. */ |
| 48 | #define unix 1 |
| 49 | |
| 50 | /* string.h defines rindex as a macro, at least with native cc, so we |
| 51 | lose declaring char * rindex without this. |
| 52 | It is just a guess which versions of AIX need this definition. */ |
| 53 | #undef HAVE_STRING_H |
| 54 | |
| 55 | /* Perry Smith <pedz@ddivt1.austin.ibm.com> says these are correct. */ |
| 56 | #define SIGNALS_VIA_CHARACTERS |
| 57 | #define CLASH_DETECTION |
| 58 | |
| 59 | /* Perry Smith <pedz@ddivt1.austin.ibm.com> says these are correct. */ |
| 60 | #undef sigmask |
| 61 | |
| 62 | #ifndef HAVE_LIBXMU |
| 63 | /* Unfortunately without libXmu we cannot support EditRes. */ |
| 64 | #define NO_EDITRES |
| 65 | #endif |
| 66 | |
| 67 | /* On AIX Emacs uses the gmalloc.c malloc implementation. But given |
| 68 | the way this system works, libc functions that return malloced |
| 69 | memory use the libc malloc implementation. Calling xfree or |
| 70 | xrealloc on the results of such functions results in a crash. |
| 71 | |
| 72 | One solution for this could be to define SYSTEM_MALLOC in configure, |
| 73 | but that does not currently work on this system. |
| 74 | |
| 75 | It is possible to completely override the malloc implementation on |
| 76 | AIX, but that involves putting the malloc functions in a shared |
| 77 | library and setting the MALLOCTYPE environment variable to point to |
| 78 | that shared library. |
| 79 | |
| 80 | Emacs currently calls xrealloc on the results of get_current_dir name, |
| 81 | to avoid a crash just use the Emacs implementation for that function. */ |
| 82 | #define BROKEN_GET_CURRENT_DIR_NAME 1 |