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9b71f02b JB |
1 | /* system description header for VMS |
2 | Copyright (C) 1986 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 | |
17385adc | 8 | the Free Software Foundation; either version 2, or (at your option) |
9b71f02b JB |
9 | 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; see the file COPYING. If not, write to | |
3b7ad313 EN |
18 | the Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
19 | Boston, MA 02111-1307, USA. */ | |
9b71f02b JB |
20 | |
21 | /* | |
22 | * Define symbols to identify the version of Unix this is. | |
23 | * Define all the symbols that apply correctly. | |
24 | */ | |
25 | ||
26 | #ifndef VMS /* Decus cpp doesn't define this but VAX C does */ | |
27 | #define VMS | |
28 | #endif /* VMS */ | |
29 | /* Note that this file is used indirectly via vms4-0.h, or some other | |
30 | such file. These other files define a symbol VMS4_0, VMS4_2, etc. */ | |
31 | ||
32 | /* SYSTEM_TYPE should indicate the kind of system you are using. | |
33 | It sets the Lisp variable system-type. */ | |
34 | ||
35 | #define SYSTEM_TYPE "vax-vms" | |
36 | ||
37 | /* NOMULTIPLEJOBS should be defined if your system's shell | |
38 | does not have "job control" (the ability to stop a program, | |
39 | run some other program, then continue the first one). */ | |
40 | ||
41 | /* #define NOMULTIPLEJOBS */ | |
42 | ||
43 | /* INTERRUPT_INPUT controls a default for Unix systems. | |
44 | VMS uses a separate mechanism. */ | |
45 | ||
46 | /* #define INTERRUPT_INPUT */ | |
47 | ||
48 | /* Letter to use in finding device name of first pty, | |
49 | if system supports pty's. 'a' means it is /dev/ptya0 */ | |
50 | ||
51 | #define FIRST_PTY_LETTER 'a' | |
52 | ||
9b71f02b JB |
53 | /* |
54 | * Define HAVE_PTYS if the system supports pty devices. | |
55 | */ | |
56 | ||
57 | /* #define HAVE_PTYS */ | |
58 | ||
59 | /* Define HAVE_SOCKETS if system supports 4.2-compatible sockets. */ | |
60 | ||
61 | /* #define HAVE_SOCKETS */ | |
62 | ||
63 | /* | |
64 | * Define NONSYSTEM_DIR_LIBRARY to make Emacs emulate | |
65 | * The 4.2 opendir, etc., library functions. | |
66 | */ | |
67 | ||
68 | #define NONSYSTEM_DIR_LIBRARY | |
69 | ||
70 | /* Define this symbol if your system has the functions bcopy, etc. */ | |
71 | ||
72 | /* #define BSTRING */ | |
73 | ||
74 | /* subprocesses should be defined if you want to | |
75 | have code for asynchronous subprocesses | |
76 | (as used in M-x compile and M-x shell). | |
77 | This is generally OS dependent, and not supported | |
78 | under most USG systems. */ | |
79 | ||
80 | #define subprocesses | |
81 | ||
82 | /* If your system uses COFF (Common Object File Format) then define the | |
83 | preprocessor symbol "COFF". */ | |
84 | ||
85 | /* #define COFF */ | |
86 | ||
87 | /* define MAIL_USE_FLOCK if the mailer uses flock | |
88 | to interlock access to /usr/spool/mail/$USER. | |
89 | The alternative is that a lock file named | |
90 | /usr/spool/mail/$USER.lock. */ | |
91 | ||
92 | /* #define MAIL_USE_FLOCK */ | |
93 | ||
94 | /* Define CLASH_DETECTION if you want lock files to be written | |
95 | so that Emacs can tell instantly when you try to modify | |
96 | a file that someone else has modified in his Emacs. */ | |
97 | ||
98 | /* #define CLASH_DETECTION */ | |
99 | ||
100 | /* Define the maximum record length for print strings, if needed. */ | |
101 | ||
102 | #define MAX_PRINT_CHARS 300 | |
103 | ||
104 | \f | |
105 | /* Here, on a separate page, add any special hacks needed | |
106 | to make Emacs work on this system. For example, | |
107 | you might define certain system call names that don't | |
108 | exist on your system, or that do different things on | |
109 | your system and must be used only through an encapsulation | |
110 | (Which you should place, by convention, in sysdep.c). */ | |
111 | ||
743a28c6 | 112 | /* Do you have the sharable library bug? If you link with a sharable |
9b71f02b JB |
113 | library that contains psects with the NOSHR attribute and also refer to |
114 | those psects in your program, the linker give you a private version of | |
743a28c6 | 115 | the psect which is not related to the version used by the sharable |
9b71f02b JB |
116 | library. The end result is that your references to variables in that |
117 | psect have absolutely nothing to do with library references to what is | |
118 | supposed to be the same variable. If you intend to link with the standard | |
743a28c6 | 119 | C library (NOT the sharable one) you don't need to define this. (This |
9b71f02b JB |
120 | is NOT fixed in V4.4...) */ |
121 | ||
743a28c6 | 122 | #define SHARABLE_LIB_BUG |
9b71f02b JB |
123 | |
124 | /* Partially due to the above mentioned bug and also so that we don't need | |
743a28c6 | 125 | to require that people have a sharable C library, the default for Emacs |
9b71f02b JB |
126 | is to link with the non-shared library. If you want to link with the |
127 | shared library, define this and remake xmakefile and fileio.c. This allows | |
128 | us to ship a guaranteed executable image. */ | |
129 | ||
130 | #define LINK_CRTL_SHARE | |
131 | ||
132 | /* Define this if you want to read the file SYS$SYSTEM:SYSUAF.DAT for user | |
177c0ea7 | 133 | information. If you do use this, you must either make SYSUAF.DAT world |
9b71f02b JB |
134 | readable or install Emacs with SYSPRV. */ |
135 | ||
136 | /* #define READ_SYSUAF */ | |
137 | ||
138 | /* On VMS these have a different name */ | |
139 | ||
140 | #define index strchr | |
141 | #define rindex strrchr | |
142 | #define unlink delete | |
05c53e7c JB |
143 | |
144 | #ifndef _GNUC_ | |
145 | extern double mth$dmod(double, double); | |
146 | #define drem mth$dmod | |
147 | #endif | |
148 | ||
743a28c6 | 149 | /* Some time routines are missing in the VAX C RTL, or needs some |
05c53e7c JB |
150 | extra bit of code */ |
151 | #define tzset sys_tzset | |
152 | #define localtime sys_localtime | |
153 | #define gmtime sys_gmtime | |
154 | ||
9b71f02b JB |
155 | /* On later versions of VMS these exist in the C run time library, but |
156 | we are using our own implementations. Hide their names to avoid | |
157 | linker errors */ | |
158 | #define rename sys_rename | |
159 | #define execvp sys_execvp | |
160 | #define system sys_system | |
161 | ||
05c53e7c | 162 | #ifndef GNU_MALLOC |
9b71f02b JB |
163 | /* Hide these names so that we don't get linker errors */ |
164 | #define malloc sys_malloc | |
165 | #define free sys_free | |
166 | #define realloc sys_realloc | |
167 | #define calloc sys_calloc | |
168 | ||
169 | /* Don't use the standard brk and sbrk */ | |
170 | #define sbrk sys_sbrk | |
171 | #define brk sys_brk | |
05c53e7c | 172 | #endif |
9b71f02b JB |
173 | |
174 | /* On VMS we want to avoid reading and writing very large amounts of | |
175 | data at once, so we redefine read and write here. */ | |
176 | ||
177 | #define read sys_read | |
178 | #define write sys_write | |
179 | ||
180 | /* sys_creat just calls the real creat with additional args of | |
181 | "rfm=var", "rat=cr" to get "normal" VMS files... */ | |
182 | #define creat sys_creat | |
183 | ||
184 | /* fwrite forces an RMS PUT on every call. This is abysmally slow, so | |
185 | we emulate fwrite with fputc, which forces buffering and is much | |
186 | faster! */ | |
187 | #define fwrite sys_fwrite | |
188 | ||
189 | /* getuid only returns the member number, which is not unique on most VMS | |
190 | systems. We emulate it with (getgid()<<16 | getuid()). */ | |
191 | #define getuid sys_getuid | |
192 | ||
193 | /* If user asks for TERM, check first for EMACS_TERM. */ | |
194 | #define getenv sys_getenv | |
177c0ea7 | 195 | |
9b71f02b JB |
196 | /* Standard C abort is less useful than it should be. */ |
197 | #define abort sys_abort | |
198 | ||
199 | /* Case conflicts with C library fread. */ | |
200 | #define Fread F_read | |
201 | ||
202 | /* Case conflicts with C library srandom. */ | |
203 | #define Srandom S_random | |
204 | ||
05c53e7c JB |
205 | /* variable length too long... maybe */ |
206 | #if 0 | |
207 | #define do_line_insertion_deletion_costs do_line_insertion_deletion_cost | |
208 | #endif | |
209 | ||
9b71f02b JB |
210 | /* Cause initialization of vmsfns.c to be run. */ |
211 | #define SYMS_SYSTEM syms_of_vmsfns () | |
212 | ||
743a28c6 | 213 | /* VAXCRTL access doesn't deal with SYSPRV very well (among other oddities...) |
9b71f02b JB |
214 | Here, we use $CHKPRO to really determine access. */ |
215 | #define access sys_access | |
216 | ||
217 | #define PAGESIZE 512 | |
218 | ||
219 | #define _longjmp longjmp | |
220 | #define _setjmp setjmp | |
221 | ||
222 | globalref char sdata[]; | |
223 | #define DATA_START (((int) sdata + 511) & ~511) | |
224 | #define TEXT_START 512 | |
225 | ||
226 | /* Baud-rate values from tty status are not standard. */ | |
227 | ||
228 | #define BAUD_CONVERT \ | |
229 | { 0, 50, 75, 110, 134, 150, 300, 600, 1200, 1800, \ | |
230 | 2000, 2400, 3600, 4800, 7200, 9600, 19200 } | |
231 | ||
05c53e7c | 232 | #define PURESIZE 330000 |
9b71f02b JB |
233 | |
234 | /* Stdio FILE type has extra indirect on VMS, so must alter this macro. */ | |
235 | ||
236 | #define PENDING_OUTPUT_COUNT(FILE) ((*(FILE))->_ptr - (*(FILE))->_base) | |
9cbfb5e4 JB |
237 | |
238 | #define NULL_DEVICE "NLA0:" | |
8cf0453f | 239 | |
6eb7492c RS |
240 | #define TERMCAP_NAME "emacs_library:[etc]termcap.dat" |
241 | ||
8cf0453f | 242 | #define EXEC_SUFFIXES ".exe:.com" |
d620fb0c JB |
243 | |
244 | /* Case conflict with Xlib XFree () */ | |
245 | #define xfree emacs_xfree | |
246 | ||
247 | /* What separator do we use in paths? */ | |
248 | #define SEPCHAR ',' |