etc/MACHINES

   1 This is a list of the status of GNU Emacs on various machines and systems.
   2 Last updated 10 Feb 1992.
   3
   4 For each system and machine, we give the `-opsystem' and `-machine'
   5 options you should pass to configure to prepare to build Emacs for
   6 that system/machine.
   7
   8 These options tell Emacs which machine- and system-descriptive files
   9 to include.  For each `-machine=MACHNAME' option, there exists a file
  10 `src/m/MACHNAME.h', and for each `-opsystem=OSNAME' option, there
  11 exists a file `src/s/OSNAME.h'.
  12
  13 Systems:
  14
  15 Berkeley 4.1 (-opsystem=bsd4-1)
  16
  17   Works on vaxes.
  18
  19 Berkeley 4.2 (-opsystem=bsd4-2)
  20
  21   Works on several machines.
  22
  23 Berkeley 4.3 (-opsystem=bsd4-3)
  24
  25   Works, on Vaxes at least.
  26
  27 Microport
  28
  29   See under "Intel 386".
  30
  31 System V rel 0 (-opsystem=usg5-0)
  32
  33   Works, on Vaxes and 3bxxx's.
  34   There are some problems in 18.37 due to shortnames/cccp problems:
  35   use the emacs 17 cpp if you have it.
  36
  37 System V rel 2 (-opsystem=usg5-2)
  38
  39   Works on various machines.
  40   On some (maybe all) machines the library -lPW exists and contains
  41   a version of `alloca'.  On these machines, to use it, put
  42      #define HAVE_ALLOCA
  43      #define LIB_STANDARD -lPW -lc
  44   in the src/m/MACHINENAME.h file for the machine.
  45
  46   If you find that the character Meta-DEL makes Emacs crash,
  47   find where function init_sys_modes in sysdep.c sets sg.c_cc[VQUIT]
  48   and make it store 7 there.  I have as yet no evidence of whether
  49   this problem, known in HP-UX, exists in other system V versions.
  50
  51 System V rel 2.2 (-opsystem=usg5-2-2)
  52
  53   In 5.2.2 AT&T undid, incompatibly, their previous incompatible
  54   change to the way the nlist library is called.  A different s- file
  55   is used to enable the other interface.
  56
  57   They call themselves the right choice--can't they choose?
  58
  59   Emacs version 18 unexec is currently not working properly
  60   on 5.2.2.  Nobody knows why yet.  A workaround is to define
  61   NO_REMAP.  It is not yet known whether this applies to all
  62   machines running 5.2.2.
  63
  64 System V rel 3 (-opsystem=usg5-3)
  65
  66   Some versions of this system support ptys and BSD-style sockets.
  67   On such systems, you should define HAVE_PTYS and HAVE_SOCKETS in config.h.
  68
  69   If you want to link Emacs with shared libraries, define
  70   USG_SHARED_LIBRARIES.
  71
  72 System V rel 4 (-opsystem=usg5-4)
  73
  74   Supported, including shared libraries for ELF, but ptys do not
  75   work because TIOCGPGRP fails to work on ptys.
  76   This failure is probably due to a misunderstanding of the
  77   consequences of the POSIX spec: many system designers mistakenly
  78   think that POSIX requires this feature to fail.  This is untrue;
  79   ptys are an extension, and POSIX says that extensions *when used*
  80   may change the action of standard facilities in any fashion.
  81
  82   The standard C preprocessor generate xmakefile incorrectly.  However,
  83   /lib/cpp will work, so use `make CPP=/lib/cpp'.
  84
  85 Ultrix (-opsystem=bsd4-2)
  86
  87   DEC's Ultrix OS is essentially Berkeley 4.2.  It does not correctly
  88   implement certain features of 4.3.
  89
  90   Ultrix 3.0 has incompatibilities in its X library if you have the
  91   Ultrix version of X (UWS version 2.0).  To solve them, you need to
  92   prevent XvmsAlloc.o in Xlib from being used.  Israel Pinkas says:
  93
  94     I added the following lines to config.h after the X defines:
  95
  96     #if defined(ultrix) && defined(X11)
  97     #define OBJECTS_SYSTEM calloc.o
  98     #endif
  99
 100     Then I ran the following:
 101
 102     ar x /usr/lib/libc.a calloc.o
 103
 104   The problem is said to be gone in UWS version 2.1.
 105
 106 Uniplus 5.2 (-opsystem=unipl5-2)
 107
 108   Works, on Dual machines at least.
 109
 110 VMS (-opsystem=vms)
 111
 112   Works except for certain features (directory listing, dired,
 113   sending and receiving mail) that use synchronous subprocesses.
 114   We need people to write alternative implementations of these
 115   facilities.
 116
 117   Note that Emacs for VMS is usually distributed in a special
 118   VMS distribution.  See the file ../VMSINSTALL for info on moving
 119   Unix distributions to VMS, and other VMS-related topics.
 120
 121 Xenix
 122
 123   Should work in 18.50, but you will need to edit the files
 124   lib-src/Makefile and src/ymakefile
 125   (see the comments that mention "Xenix" for what to change.)
 126   Compiling Emacs with -O is said not to work.
 127
 128   If you want Emacs to work with Smail (installed as /usr/bin/smail)
 129   then add the line   #define SMAIL  to config.h.
 130
 131   The file etc/XENIX suggests some useful things to do to Xenix
 132   to make the Emacs meta key work.
 133 \f
 134 Machines:
 135
 136 Alliant (-machine=alliant4, -machine=alliant or -machine=alliant1;
 137          -opsystem=bsd4-2)
 138
 139   18.52 works on system version 4.  Previous Emacs versions were
 140   known to work on previous system versions.
 141
 142   Use -machine=alliant1 on version 1 of their operating system
 143   and use -machine=alliant on version 2 or 3.
 144   Use -machine=alliant4 on version 4.
 145
 146 Alliant FX/2800 (-machine=alliant-2800; -opsystem=bsd4-3)
 147
 148   Known to work with 18.58 and OS version 2.2, compiler version 1.3.
 149
 150 Altos 3068 (-machine=altos; -opsystem=usg5-2)
 151
 152   18.52 is said to work, provided you don't compile unexec.c with -O.
 153
 154 Amdahl UTS (-machine=amdahl; -opsystem=usg5-2-2)
 155
 156   Small changes for 18.38 were merged in 18.39.  It is mostly
 157   working, but at last report a bug sometimes causes Emacs to
 158   grab very large amounts of memory.  No fix or explanation
 159   has yet been reported.  It may be possible to find this bug
 160   if you find which Emacs command it happens within and then
 161   run that command with a breakpoint set at malloc.
 162
 163   The 5.2u370 compiler is so brain damaged that it is not
 164   even worth trying to use it.  Success was obtained with the
 165   uts native C compiler on uts version 5.2.5.
 166
 167 Apollo running Domain (-machine=apollo; -opsystem=bsd4-2)
 168
 169   18.52 works, to some extent.
 170   Code for dumping Emacs has been written, but we cannot
 171   distribute it yet.
 172   There are reports of bugs in cc -O on this system.
 173
 174   In lib-src/Makefile, don't expect emacsclient and emacsserver to
 175   compile.  You might want to remove them from your makefile.
 176
 177   Supposedly something in dired.c runs into a compiler bug.
 178   Paraphrasing the statement should avoid the problem.  I have not yet
 179   received word as to the exact statement this is.
 180
 181 AT&T 3b2, 3b5, 3b15, 3b20 (-machine=att3b; -opsystem=usg5-2-2)
 182
 183   Emacs will probably not work with certain kernel constants too small.
 184
 185   In param.h CDLIMIT should be at least (1L << 12) in order to allow
 186   processes to write up to 2 Mbyte files.  If it's too small,
 187   you can perhaps fix it using the file `ulimit.hack' in this directory.
 188
 189   Note that for V.3.1 and later releases, this parameter is configurable
 190   by normal means in /etc/master.d/kernel; examine that file for the
 191   symbol CDLIMIT or ULIMIT, and raise it by several powers of 2.  Then
 192   do normal kernel rebuild things via "cd /boot; mkboot -k KERNEL" and so
 193   forth.  Do not use ulimit.hack if you have V.3.1 or later.
 194
 195   In seg.h NSEGP and STACKSEG should be at least 16 and 4 respectively
 196   to allow processes with total size of up to 2Mbytes.
 197   However, I'm told it is unlikely this would fail to be true.
 198
 199   The MAXMEM may also prevent Emacs from running.  The file
 200   3B-MAXMEM in this directory explains how to increase MAXMEM.
 201
 202 AT&T 7300 or 3b1 (-machine=7300; -opsystem=usg5-2-2)
 203
 204   18.52 seems to work.  If you have strange troubles with dumping
 205   Emacs, delete the last few lines from -machine=7300 and recompile.
 206   These lines are supposed to produce a sharable executable.
 207
 208   -machine=7300 defines SHORTNAMES because operating system versions
 209   older than 3.5 did not support long symbol names.  Version 3.5 does
 210   support them, so you can remove the #define SHORTNAMES in that
 211   version.
 212
 213 Bull sps7 (-machine=sps7; -opsystem=usg5-2)
 214
 215   Changes partially merged in version 19, but some fixes are probably required.
 216
 217 CCI 5/32, 6/32
 218
 219   See "Tahoe".
 220
 221 Celerity (-machine=celerity; -opsystem=bsd4-2)
 222
 223   Version 18.49 works.
 224
 225 Clipper (-machine=clipper; ???)
 226
 227   Version 19 has support for some brand of clipper system.
 228   Note that the Orion 105 is also a clipper, but some system-related
 229   parameters are different.
 230
 231 Convex (-machine=convex; -opsystem=bsd4-3)
 232
 233   18.53 is supposed to work.
 234
 235 Cubix QBx/386 (-machine=intel386; -opsystem=usg5-3)
 236
 237   Changes merged in 19.1.  Systems before 2/A/0 may fail to compile etags.c
 238   due to a compiler bug.
 239
 240 Cydra 5 (-machine=cydra5; -opsystem=usg5-3)
 241
 242   18.51 worked in one version of their operating system but stopped
 243   working in a newer version.  This has not been fixed.
 244
 245 DECstation (-machine=pmax; -opsystem=bsd4-2)
 246
 247   Works, as of 18.55.  See under Ultrix for problems using X windows
 248   on Ultrix.  Note that this is a MIPS machine.
 249   For Ultrix versions prior to 4.0, you may need to delete
 250   the definition of START_FILES from src/m/pmax.h.
 251
 252 Motorola Delta 147 (-machine=delta; -opsystem=usg5-3)
 253
 254   Motorola Delta boxes running System V/68 release 3.
 255   (tested on sys1147 with SVR3V5).  Changes merged in 19.1.
 256
 257 Motorola Delta 187 (-machine=delta88k; -opsystem=usg5-3)
 258
 259   Machine support added in version 19.
 260   HAVE_X_MENU does not work due to lack of insque.
 261
 262 Dual running System V (-machine=dual; -opsystem=usg5-2)
 263
 264   As of 17.46, this works except for a few changes
 265   needed in unexec.c.
 266
 267 Dual running Uniplus (-machine=dual; -opsystem=unipl5-2)
 268
 269   Works, as of 17.51.
 270
 271 Elxsi 6400 (-machine=elxsi; -opsystem=usg5-2)
 272
 273   Changes for 12.0 release are in 19.1.
 274   Dumping should work now.
 275
 276 Encore machine (-machine=ns16000; -opsystem=umax)
 277
 278   This machine bizarrely uses 4.2BSD modified to use the COFF format
 279   for object files.  Works (as of 18.40).  For the APC processor you
 280   must enable two lines at the end of src/s/umax.h, which are commented
 281   out in the file as distributed.
 282
 283   WARNING: If you compile Emacs with the "-O" compiler switch, you
 284   must also use the "-q enter_exits" switch so that all functions have
 285   stack frames.  Otherwise routines that call `alloca' all lose.
 286
 287   A kernel bug in some system versions causes input characters to be lost
 288   occasionally.
 289
 290 GEC 93 (-machine=gec93; -opsystem=usg5-2?)
 291
 292   Changes are partially merged in version 18, but
 293   certainly require more work.
 294
 295 Gould Power Node (-machine=gould; -opsystem=bsd4-2 or -opsystem=bsd4-3)
 296
 297   18.36 worked on versions 1.2 and 2.0 of the operating system.
 298
 299   On UTX/32 2.0, use -opsystem=bsd4-3.
 300
 301   On UTX/32 1.2 and UTX/32S 1.0, use -opsystem=bsd4-2 and note that
 302   compiling lib-src/sorted-doc tickles a compiler bug: remove the -g
 303   flag to cc in the makefile.
 304
 305   UTX/32 1.3 has a bug in the bcopy library routine.  Fix it by
 306   #undef BSTRING in -machine=gould.
 307
 308   Version 19 incorporates support for releases 2.1 and later of UTX/32.
 309   A site running a pre-release of 2.1 should #define RELEASE2_1 in config.h.
 310
 311 Gould NP1 (-machine=gould-np1; -opsystem=bsd4-3)
 312
 313   Version 19 supposedly works.
 314
 315 Honeywell XPS100 (-machine=xps100; -opsystem=usg5-2)
 316
 317   Config file added in version 19.
 318
 319 HP 9000 series 200 or 300 (-machine=hp9000s300;
 320                            -opsystem=hpux or -opsystem=bsd4-3)
 321
 322   Version 18 works.
 323   These machines are 68000-series CPUs running HP-UX
 324   (a derivative of sysV with some BSD features) or BSD 4.3 ported by Utah.
 325   The choice of s- file determines which system Emacs is built for.
 326
 327   Series 200 HPUX runs Emacs only if it has the "HP-UX upgrade".
 328
 329   If you are running HP-UX release 8.0 or later, you need the optional
 330   "C/ANSI C" software in order to build Emacs (older releases of HP-UX
 331   do not require any special software).  If the file "/etc/filesets/C"
 332   exists on your machine, you have this software, otherwise you do not.
 333
 334   Note that HP has used two incompatible assembler syntaxes,
 335   and has recently changed the format of C function frames.
 336   src/crt0.c and src/alloca.s have been conditionalised for the new
 337   assembler and new function-entry sequence.  You may need to define
 338   OLD_HP_ASSEMBLER if you are using an older hpux version.  If you
 339   have an official (bought from HP) series 300 machine you have
 340   the new assembler.  Kernels that are 5.+ or later have new
 341   assembler.  A Series 200 that has been upgraded to a 68010
 342   processor and a 5.+ kernel has the new compiler.
 343
 344   Define C_SWITCH_MACHINE to be +X to make a version of Emacs that
 345   runs on both 68010 and 68020 based hp-ux's.
 346
 347   Define HPUX_68010 if you are using the new assembler, for
 348   a system that has a 68010 without a 68881.  This is to say,
 349   a s200 (upgraded) or s310.
 350
 351   Define the symbol HPUX_NET if you have the optional network features
 352   that include the `netunam' system call.  This is refered to as
 353   Network Services (NS/9000) in HP literature.
 354
 355 HP 9000 series 300 running BSD 4.3 (-machine=hp300bsd; -opsystem=bsd4-3)
 356
 357   Version 19.1 works.
 358
 359 HP 9000 series 500: not supported.
 360
 361   The series 500 has a seriously incompatible memory architecture
 362   which relocates data in memory during execution of a program,
 363   and support for it would be difficult to implement.
 364
 365 HP 9000 series 800 (Spectrum) (-machine=hp9000s800; -opsystem=hpux)
 366
 367   These files support HP's Precision Architecture machines
 368   running HP-UX.  It has been moderately tested on the Series
 369   840.
 370
 371   If you are running HP-UX release 8.0 or later, you need the optional
 372   "C/ANSI C" software in order to build Emacs (older releases of HP-UX
 373   do not require any special software).  If the file "/etc/filesets/C"
 374   exists on your machine, you have this software, otherwise you do not.
 375
 376 High Level Hardware Orion (-machine=orion; -opsystem=bsd4-2)
 377
 378   This is the original microprogrammed hardware.
 379   Machine description file ought to work.
 380
 381 High Level Hardware Orion 1/05 (-machine=orion105; -opsystem=bsd4-2)
 382
 383   Changes merged in 18.52.  This is the one with the Clipper cpu.
 384   Note that systems which lack NFS need LOAD_AVE_TYPE changed to `double'.
 385
 386   C compiler has a bug; it loops compiling eval.c.
 387   Compile it by hand without optimization.
 388
 389 IBM PS/2 (-machine=ibmps2-aix; -opsystem=usg5-2-2 or -opsystem=usg5-3)
 390
 391   Changes merged in version 19.  You may need to copy
 392   /usr/lib/samples/hft/hftctl.c to the Emacs src directory.
 393
 394   Use -opsystem=usg5-3 on AIX 1.2.
 395   -opsystem=usg5-2-2 should work on either AIX 1.1 or 1.2, but may not
 396   work with certain new X window managers, and may be suboptimal.
 397
 398 IBM RS/6000 (-machine=ibmrs6000; -opsystem=aix3-1)
 399
 400   Changes merged in version 19.
 401
 402   Dumping does not work.  Code has been written to implement it, but
 403   it fails because the address of bss seems to vary occasionally
 404   between Emacs runs.  It does not seem to vary from minute to minute,
 405   but every few days or weeks it changes to a new steady state.
 406   When this happens, the dumped Emacs data file becomes invalid.
 407
 408 IBM RT/PC (-machine=ibmrt or -machine=ibmrt-aix;
 409            -opsystem=bsd4-2 or -opsystem=usg5-2-2)
 410
 411   18.52 works on both operating systems.
 412   Use -opsystem=bsd4-2 for the 4.2-like system and -opsystem=usg5-2-2
 413   for AIX.
 414
 415   On BSD, if you have trouble, try compiling with a different compiler.
 416
 417   On AIX, the file /usr/lib/samples/hft/hftctl.c must be compiled into
 418   hftctl.o, with this result left in the src directory (hftctl.c is
 419   part of the standard AIX distribution).
 420
 421   window.c must not be compiled with -O on AIX.
 422
 423 Integrated Solutions `Optimum V' (-machine=isi-ov;
 424                                   -opsystem=bsd4-2 or -opsystem=bsd4-3)
 425
 426   18.52 said to work on some sort of ISI machine.
 427   Version 18.45 worked (running on a Optimum V (VME bus, 68020)
 428   BSD 4.2 (3.05e) system).  18.42 is reported to work on
 429   a Qbus 68010 system.  Has not been tried on `WorkStation' `Cluster
 430   Compute Node' `Cluster WorkStation' or `Server Node'  (Love the
 431   StudLYCaps)
 432
 433   Compilation with -O is rumored to break something.
 434
 435   On recent system versions, you may need to undefine the macro UMAX
 436   in lib-src/loadst.c and src/getpagesize.h.  They stupidly defined this
 437   in a system header file, which confuses Emacs (which thinks that UMAX
 438   indicates the Umax operating system).
 439
 440 Intel 386 (-machine=intel386 or -machine=is386;
 441            -opsystem=bsd4-2, usg5-2-2, usg5-3, isc2-2, 386-ix,
 442                      esix, or xenix)
 443
 444   18.58 should support a wide variety of operating systems.
 445   Use -opsystem=isc2-2 for Interactive 386/ix version 2.2.
 446   Use -opsystem=386ix for prior versions.
 447   Use -opsystem=esix for Esix.
 448   It isn't clear what to do on an SCO system.  The system's C
 449   preprocessor doesn't seem to handle the src subdirectory's Make
 450   trickery, so you will probably need to install the GNU C preprocessor.
 451
 452   If you are using Xenix, see notes above under Xenix.
 453
 454   Some sysV.3 systems seem to have bugs in `opendir';
 455   for them, alter `config.h' to define NONSYSTEM_DIR_LIBRARY
 456   and undefine SYSV_SYSTEM_DIR.
 457
 458   If you use optimization on V.3, you may need the option -W2,'-y 0'
 459   to prevent certain faulty optimization.
 460
 461   On 386/ix, to link with shared libraries, add #define USG_SHARED_LIBRARIES
 462   to config.h.
 463
 464   There is no consistency in the handling of certain system header files
 465   on V.3.
 466
 467   Some versions have sys/sioctl.h, and require it in sysdep.c.
 468   But some versions do not have sys/sioctl.h.
 469   For a given version of the system, this may depend on whether you have
 470   X Windows or TCP/IP.  Define or undefine NO_SIOCTL_H in config.h
 471   according to whether you have the file.
 472
 473   Likewise, some versions have been known to need sys/ttold.h, sys/stream.h,
 474   and sys/ptem.h included in sysdep.c.  If your system has these files,
 475   try defining NEED_PTEM_H in config.h if you have trouble without it.
 476
 477   You may find that adding -I/usr/X/include or -I/usr/netinclude or both
 478   to CFLAGS avoids compilation errors on certain systems.
 479
 480   Some versions convince sysdep.c to try to use `struct tchars'
 481   but define `struct tc' instead; add `#define tchars tc'
 482   to config.h to solve this problem.
 483
 484   The file -machine=is386 is used for an Integrated Solutions 386 machine.
 485   It may also be correct for Microport systems.
 486
 487 Iris 2500 (-machine=irist; -opsystem=iris3-5 or -opsystem=iris3-6)
 488
 489   Version 18 said to work; use -opsystem=irist3-5 for system version 2.5
 490   and -opsystem=iris3-6 for system version 3.6.
 491
 492 Iris 2500 Turbo (-machine=irist; -opsystem=iris3-5 or -opsystem=iris3-6)
 493
 494   18.49 works.  Use -opsystem=iris3-6 for system versions 3.6 and up.
 495   Note that the 3030 is the same machine as this.
 496
 497 Iris 4D (-machine=iris4d; -opsystem=irix3-3)
 498
 499   18.56 is known to work on 4D series machines with Irix 3.3 or later.
 500
 501   If you use the X menu facility, you must edit oldXmenu/Makefile
 502   to add the line
 503
 504     RANLIB=true
 505
 506   Someone said that with the yellow pages you must change two definitions
 507   in -machine=iris4d as follows:
 508
 509     #define LIBS_MACHINE -lsun -lbsd -lPW -lmld
 510     #define C_SWITCH_MACHINE -I/usr/include/sun -I/usr/include/bsd
 511
 512   jg@bambi.esd.sgi.com says this isn't true anymore,
 513   but the info might as well be here just in case.
 514
 515 Macintosh
 516
 517   We are boycotting Apple because of Apple's efforts to take away
 518   our freedom to write compatible imitations of existing software.
 519   If you value your freedom to write such programs, we urge you
 520   not to buy from Apple, not to develop software for Apple, and
 521   certainly not to accept a job with Apple.
 522
 523   See the file APPLE in this directory for more information.
 524
 525 Masscomp (-machine=masscomp; -opsystem=rtu)
 526
 527   18.36 worked on a 5500DP running RTU v3.1a and compiler version 3.2
 528   with minor fixes that are included in 18.37.  However, bizarre behavior
 529   was reported for 18.36 on a Masscomp (model and version unknown but probably
 530   a 68020 system).  The report sounds like a compiler bug.
 531
 532   A compiler bug affecting statements like
 533     unsigned char k; unsigned char *p;... x = p[k];
 534   has been reported for "C version 1.2 under RTU 3.1".  We do not wish
 535   to take the time to install the numerous workarounds required to
 536   compensate for this bug; go complain to Masscomp.
 537
 538   For RTU version 3.1, define FIRST_PTY_LETTER to be 'p' in src/s/rtu.h
 539   (or #undef and redefine it in config.h) so that ptys will be used.
 540
 541   GNU Emacs is said to have no chance of compiling on RTU versions
 542   prior to v3.0.
 543
 544 Megatest (-machine=mega68; -opsystem=bsd4-2)
 545
 546   Emacs 15 worked; do not have any reports about Emacs 16 or 17
 547   but any new bugs are probably not difficult.
 548
 549 Mips (-machine=mips or -machine=mips4; -opsystem=usg5-2-2, -opsystem=bsd4-3)
 550
 551   Changes merged in 18.39.  Some fixes in 18.56.
 552
 553   Use -machine=mips4 for RISCOS version 4; use -opsystem=bsd4-3 with
 554   the BSD world.
 555
 556 Motorola Delta (-machine=delta; -opsystem=usg5-3)
 557
 558   Machine support added in version 18.56.
 559
 560 National Semiconductor 32000 (-machine=ns32000; -opsystem=usg5-2)
 561
 562   This is for a complete machine from National Semiconductor,
 563   running Genix.  Changes merged in version 19.
 564
 565 NCR Tower 32 running System V release 2 (-machine=tower32; -opsystem=usg5-2-2)
 566
 567   Works as of 17.56.  If you change src/ymakefile so that CFLAGS includes
 568   C_OPTIMIZE_SWITCH rather than C_DEBUG_SWITCH, check out the comments
 569   in src/m/tower32.h about this.
 570
 571   There is a report that compilation with -O did not work with 18.54.
 572
 573 NCR Tower 32 running System V release 3 (-machine=tower32v3; -opsystem=usg5-3)
 574
 575   Works as of 18.56.  If you change src/ymakefile so that CFLAGS includes
 576   C_OPTIMIZE_SWITCH rather than C_DEBUG_SWITCH, and do not use gcc, check
 577   out the comments in src/m/tower32v3.h about this.
 578
 579 Nixdorf Targon 31 (-machine=targon31; -opsystem=usg5-2-2)
 580
 581   Machine description file for version 17 is included in 18
 582   but whether it works is not known.
 583   src/unexec.c bombs if compiled with -O.
 584   Note that the "Targon 35" is really a Pyramid.
 585
 586 Nu (TI or LMI) (-machine=nu; -opsystem=usg5-2)
 587
 588   Version 18 is believed to work.
 589
 590 Plexus (-machine=plexus; -opsystem=usg5-2)
 591
 592   Works as of 17.56.
 593
 594 Pmax (DEC Mips)  (-machine=pmax; -opsystem=bsd4-2)
 595
 596   See under DECstation, above.
 597
 598 Prime EXL (-machine=intel386; -opsystem=usg5-3)
 599
 600   Minor changes merged in 19.1.
 601
 602 Pyramid (-machine=pyramid; -opsystem=bsd4-2)
 603
 604   In OSx 4.0, it seems necessary to add the following two lines
 605   to src/m/pyramid.h:
 606      #define _longjmp longjmp
 607      #define _setjmp setjmp
 608
 609   In Pyramid system 2.5 there has been a compiler bug making
 610   Emacs crash just after screen-splitting with Qnil containing 0.
 611   A compiler that fixes this is Pyramid customer number 8494,
 612   internal number 1923.
 613
 614   Some versions of the pyramid compiler get fatal
 615   errors when the -gx compiler switch is used; if this
 616   happens to you, change src/m/pyramid.h to define
 617   C_DEBUG_SWITCH with an empty definition.
 618
 619   Some old system versions may require you to define PYRAMID_OLD
 620   in when alloca.s is preprocessed, in order to define _longjmp and _setjmp.
 621
 622 Sequent Balance (-machine=sequent;
 623                  -opsystem=bsd4-2, or -opsystem=bsd4-3 on newer systems)
 624
 625   Emacs 18.51 should work on system version 3.0.  18.52 is said to work.
 626   Delete some lines at the end of src/m/sequent.h for earlier system
 627   versions.
 628
 629 Sequent Symmetry (-machine=symmetry; -opsystem=bsd4-3)
 630
 631   Emacs 19 should work.
 632
 633 SONY News (-machine=news;
 634            -opsystem=bsd4-2, or -opsystem=bsd4-3 for system release 3)
 635
 636   18.52 should work.
 637
 638 SONY News 3000 series (RISC NEWS) (-machine=news-risc; -opsystem=bsd4-3)
 639
 640   Works, as of 18.56.  Note that this is a MIPS architecture machine.
 641
 642   Some versions of the operating system give SIGTRAP for division by zero
 643   instead of the usual signals.  This causes division by zero
 644   to make Emacs crash.  The system should be fixed to give the proper signal.
 645   Changing Emacs is not a proper solution, because it would prevent
 646   Emacs from working under any debugger.  But you can change init_data
 647   in data.c if you wish.
 648
 649 Stardent 1500 or 3000
 650
 651   See Titan.
 652
 653 Stride (-machine=stride; -opsystem=usg5-2)
 654
 655   Works (most recent news for 18.30) on their release 2.0.
 656   For release 2.2, see the end of src/m/stride.h.
 657   It may be possible to run on their V.1 system but changes
 658   in the s- file would be needed.
 659
 660 Sun 1, 2 and 3 (-machine=sun1, -machine=sun2, -machine=sun3;
 661                 -opsystem=bsd4-2, sunos4-0, or sunos4-1)
 662
 663   There are three machine files for different versions of SunOS.
 664   All are derived from Berkeley 4.2.  Emacs 17 has run on all of them.
 665   Whether you should use -machine=sun1, -machine=sun2 or -machine=sun3
 666   depends on the VERSION OF THE OPERATING SYSTEM you have.
 667   You will need to use -machine=sun3 on Sun 2's running SunOS release 3.
 668
 669   For SunOS release 4 on a Sun 3, use -machine=sun3 and
 670   -opsystem=sunos4-0 or -opsystem=sunos4-1.
 671   See the file etc/SUNBUG for how to solve problems caused by
 672   bugs in the "export" version of SunOS 4.
 673
 674   If you have trouble using open-network-stream, get the
 675   distribution of `bind' (the BSD name-server), build libresolv.a,
 676   and link Emacs with -lresolv.  This problem is due to obsolete
 677   software in the nonshared standard library.
 678
 679   If you want to use SunWindows, define HAVE_SUN_WINDOWS
 680   in config.h to enable a special interface called `emacstool'.
 681   The definition must *precede* the #include "machine.h".
 682   System version 3.2 is required for this facility to work.
 683
 684   We recommend that you instead use the X window system, which
 685   has technical advantages, is an industry standard, and is also
 686   free software.
 687
 688   If you are compiling for X windows, and the X window library was
 689   compiled to use the 68881, then you must edit config.h according
 690   the comments at the end of -machine=sun3.
 691
 692   Note that Emacs on a Sun is not really as big as it looks.
 693   As dumped, it includes around 200k of zeros between the
 694   original text section and the original data section
 695   (now remapped as part of the text).  These are never
 696   swapped in.
 697
 698   To build a single Emacs that will run on Sun 2 and Sun 3
 699   HARDWARE, just build it on the Sun 2.
 700
 701 Sun 4 (-machine=sparc;
 702        -opsystem=bsd4-2, -opsystem=sunos4-0, -opsystem=sunos4-1)
 703
 704   Changes merged in 18.50.  Some people say optimizing compilation
 705   does not work; some say that -O2 (whatever that is) works
 706   perhaps with a small change.
 707
 708   Use -opsystem=sunos4-0 for operating system version 4.0, and
 709   -opsystem=sunos4-1 for later versions.
 710   See the file etc/SUNBUG for how to solve problems caused by
 711   bugs in the "export" version of SunOS 4.
 712
 713 Sun Roadrunner (-machine=sun386; -opsystem=sunos4-0 or -opsystem=sunos4-1)
 714
 715   Changes merged in 18.51.
 716
 717 Tadpole 68K (-machine=tad68k; -opsystem=usg5-3)
 718
 719   Changes merged in 19.1.
 720
 721   You may need to edit Makefile to change the variables LIBDIR and
 722   BINDIR from /usr/local to /usr/contrib.
 723
 724   To give movemail access to /usr/mail, you may need to execute
 725
 726     chmod 2755 etc/movemail; chgrp mail etc/movemail
 727
 728 Tahoe (-machine=tahoe; -opsystem=bsd4-2 or -opsystem=bsd4-3)
 729
 730   18.52 known to work on some Tahoes, but a compiler bug intervenes
 731   on others.  Some Emacs versions have worked in Unisys 1r4
 732   (not in 1r3) and CCI I.21.
 733
 734   If you have trouble compiling lib-src/loadst.c, turn off the definition
 735   of DKSTAT_HEADER_FILE in -machine=tahoe.
 736
 737 Tandem Integrity S2 (-machine=tandem-s2; -opsystem=usg5-3)
 738
 739   Changes merged in 18.56 but subprocess support is turned off.
 740   You will probably want to see if you can make subprocesses work.
 741
 742   You must edit lib-src/Makefile to define LOADLIBES = -mld.
 743
 744 Tektronix 16000 box (6130?) (-machine=ns16000; -opsystem=bsd4-2)
 745
 746   Emacs 17.61 worked.
 747
 748 Tektronix 4300 (-machine=tek4300; -opsystem=bsd4-3)
 749
 750   Emacs 18.51 should work.
 751
 752 Titan P2 or P3 (-machine=titan; -opsystem=usg5-3)
 753
 754   Changes probably merged in version 19.
 755
 756 Ustation E30 (SS5E) (-machine=ustation; -opsystem=unipl5-2).
 757
 758   Changes merged in 18.52; don't know whether they work.
 759
 760 Vax running Berkeley Unix (-machine=vax;
 761                            -opsystem=bsd4-1, bsd4-2 or bsd4-3)
 762
 763   Works.
 764
 765 Vax running Ultrix (-machine=vax; -opsystem=bsd4-2)
 766
 767   Works.  See under Ultrix for problems using X windows on Ultrix.
 768
 769 Vax running System V rel 2 (-machine=vax; -opsystem=usg5-2)
 770
 771   18.27 Works.
 772
 773 Vax running System V rel 0 (-machine=vax; -opsystem=usg5-0)
 774
 775   Works as of 18.36.
 776
 777 Vax running VMS (-machine=vax; -opsystem=vms
 778                  but on VMS they are m_vax.h and s_vms.h)
 779
 780   18.36 believed to work.  Addition of features is necessary to make
 781   this Emacs version more usable.
 782
 783 Whitechapel MG1 (-machine=mg1, s-?)
 784
 785   May work.  Supposedly no changes were needed except the m- file.
 786   I do not know what Unix version runs on them.
 787
 788 Wicat (-machine=wicat; -opsystem=usg5-2)
 789
 790   Changes merged as of 18.6; whether they work is unknown.
 791   See comments in src/m/wicat.h for things you should change
 792   depending on the system and compiler version you have.
 793 \f
 794 Local variables:
 795 mode: text
 796 fill-prefix: "  "
 797 End: