src/m/pmax.h

   1 /* Machine description file for DEC MIPS machines.  */
   2
   3 #include "mips.h"
   4
   5 /* The following line tells the configuration script what sort of
   6    operating system this machine is likely to run.
   7    USUAL-OPSYS="note"
   8
   9 NOTE-START
  10 Use -opsystem=osf1 for OSF/1, and -opsystem=bsd4-3 otherwise.
  11 NOTE-END  */
  12
  13 #undef LIB_STANDARD
  14 #undef START_FILES
  15 #undef COFF
  16 #undef TERMINFO
  17 #define MAIL_USE_FLOCK
  18 #define HAVE_UNION_WAIT
  19
  20 /* This line starts being needed with ultrix 4.0.  */
  21 /* You must delete it for version 3.1.  */
  22 #define START_FILES pre-crt0.o /usr/lib/cmplrs/cc/crt0.o
  23
  24 /* Supposedly the following will overcome a kernel bug.  */
  25 #undef LD_SWITCH_MACHINE
  26 #undef DATA_START
  27 #define DATA_START 0x10000000
  28 #define DATA_SEG_BITS 0x10000000
  29
  30 #if 0
  31 /* I don't see any such conflict in Ultrix 4.2, 4.2a, or 4.3.  And
  32    the relocating allocator is a real win.  -JimB  */
  33
  34 /* In Ultrix 4.1, XvmsAlloc.o in libX11.a seems to insist
  35    on defining malloc itself.  This should avoid conflicting with it.  */
  36 #define SYSTEM_MALLOC
  37 #endif
  38
  39 /* Override what m-mips.h says about this.  */
  40 #undef LINKER
  41
  42 /* Ultrix 4.2 (perhaps also 4.1) implements O_NONBLOCK
  43    but it doesn't work right;
  44    and it causes hanging in read_process_output.  */
  45 #define BROKEN_O_NONBLOCK
  46
  47 #ifdef OSF1
  48 #undef C_ALLOCA
  49 #define HAVE_ALLOCA
  50 #endif
  51
  52 #ifndef OSF1
  53 /* Ultrix saves the time zone in core; must clear it.  */
  54 #define LOCALTIME_CACHE
  55 #endif
  56
  57 /* mcc@timessqr.gc.cuny.edu says this makes Emacs work with DECnet.  */
  58 #ifdef HAVE_LIBDNET
  59 #define LIBS_MACHINE -ldnet
  60 #endif
  61
  62 /* mcc@timessqr.gc.cuny.edu says it is /vmunix on Ultrix 4.2a.  */
  63 #undef KERNEL_FILE
  64 #define KERNEL_FILE "/vmunix"
  65
  66 /* Jim Wilson writes:
  67    [...] The X11 include files that Dec distributes with Ultrix
  68    are bogus.
  69
  70    When __STDC__ is defined (which is true with gcc), the X11 include files
  71    try to define prototypes.  The prototypes however use types which haven't
  72    been defined yet, and thus we get syntax/parse errors.
  73
  74    You can not fix this by changing the include files, because the prototypes
  75    create circular dependencies, in particular Xutil.h depends on types defined
  76    in Xlib.h, and Xlib.h depends on types defined in Xutil.h.  So, no matter
  77    which order you try to include them in, it will still fail.
  78
  79    Compiling with -DNeedFunctionPrototypes=0 will solve the problem by
  80    directly inhibiting the bad prototypes.  This could perhaps just be put in
  81    an a Ultrix configuration file.
  82
  83    Using the MIT X11 distribution instead of the one provided by Dec will
  84    also solve the problem, but I doubt you can convince everyone to do this. */
  85 /* Addendum: the MIT X11 distribution neglects to define certain symbols
  86    when NeedFunctionPrototypes is 0, but still tries to use them when
  87    NeedVarargsProrotypes is 1 (which is its default value).  So if we're
  88    going to disable non-variadic prototypes, we also need to disable
  89    variadic prototypes.  --kwzh@gnu.ai.mit.edu */
  90 #define C_SWITCH_X_MACHINE -DNeedFunctionPrototypes=0 -DNeedVarargsPrototypes=0
  91
  92 /* Enable a fix in process.c.  */
  93 #define SET_CHILD_PTY_PGRP