code.delx.au - gnu-emacs/blob - src/s/freebsd.h

   1 /* s/ file for freebsd system.  */
   2
   3 /* '__FreeBSD__' is defined by the preprocessor on FreeBSD-1.1 and up.
   4    Earlier versions do not have shared libraries, so inhibit them.
   5    You can inhibit them on newer systems if you wish
   6    by defining NO_SHARED_LIBS.  */
   7 #ifndef __FreeBSD__
   8 #define NO_SHARED_LIBS
   9 #endif
  10
  11
  12 #if 0 /* This much, alone, seemed sufficient as of 19.23.
  13          But it seems better to be independent of netbsd.h.  */
  14 #include "netbsd.h"
  15
  16 #undef LIB_GCC
  17 #define LIB_GCC -lgcc
  18 #undef NEED_ERRNO
  19 #endif /* 0 */
  20
  21
  22 /* Get most of the stuff from bsd4.3 */
  23 #include "bsd4-3.h"
  24
  25 /* For mem-limits.h. */
  26 #define BSD4_2
  27
  28 /* These aren't needed, since we have getloadavg.  */
  29 #undef KERNEL_FILE
  30 #undef LDAV_SYMBOL
  31
  32 #define PENDING_OUTPUT_COUNT(FILE) ((FILE)->_p - (FILE)->_bf._base)
  33
  34 #define LIBS_DEBUG
  35 #define LIBS_SYSTEM -lutil
  36 #define LIBS_TERMCAP -ltermcap
  37 #define LIB_GCC -lgcc
  38
  39 #define SYSV_SYSTEM_DIR
  40
  41 /* freebsd has POSIX-style pgrp behavior. */
  42 #undef BSD_PGRPS
  43 #define GETPGRP_NO_ARG
  44
  45 #ifndef NO_SHARED_LIBS
  46 #define LD_SWITCH_SYSTEM -e start -dc -dp
  47 #define HAVE_TEXT_START         /* No need to define `start_of_text'. */
  48 #define START_FILES pre-crt0.o /usr/lib/crt0.o
  49 #define UNEXEC unexsunos4.o
  50 #define RUN_TIME_REMAP
  51
  52 #ifndef N_TRELOFF
  53 #define N_PAGSIZ(x) __LDPGSZ
  54 #define N_BSSADDR(x) (N_ALIGN(x, N_DATADDR(x)+x.a_data))
  55 #define N_TRELOFF(x) N_RELOFF(x)
  56 #endif
  57 #else /* NO_SHARED_LIBS */
  58 #ifdef __FreeBSD__  /* shared libs are available, but the user prefers
  59                      not to use them.  */
  60 #define LD_SWITCH_SYSTEM -Bstatic
  61 #define A_TEXT_OFFSET(x) (sizeof (struct exec))
  62 #define A_TEXT_SEEK(hdr) (N_TXTOFF(hdr) + A_TEXT_OFFSET(hdr))
  63 #endif /* __FreeBSD__ */
  64 #endif /* NO_SHARED_LIBS */
  65
  66 #define HAVE_WAIT_HEADER
  67 #define HAVE_GETLOADAVG
  68 /*#define HAVE_GETPAGESIZE  /* configure now puts this in config.h */
  69 #define HAVE_TERMIOS
  70 #define NO_TERMIO
  71 #define DECLARE_GETPWUID_WITH_UID_T
  72
  73 /* freebsd uses OXTABS instead of the expected TAB3. */
  74 #define TABDLY OXTABS
  75 #define TAB3 OXTABS
  76
  77 /* this silences a few compilation warnings */
  78 #undef BSD_SYSTEM
  79 #if __FreeBSD__ == 1
  80 #define BSD_SYSTEM 199103
  81 #elif __FreeBSD__ == 2
  82 #define BSD_SYSTEM 199306
  83 #elif __FreeBSD__ == 3
  84 #define BSD_SYSTEM 199506
  85 #endif
  86
  87 #define WAITTYPE int
  88 /* get this since it won't be included if WAITTYPE is defined */
  89 #ifdef emacs
  90 #include <sys/wait.h>
  91 #endif
  92 #define WRETCODE(w) (_W_INT(w) >> 8)
  93
  94 /* Needed to avoid hanging when child process writes an error message
  95    and exits -- enami tsugutomo <enami@ba2.so-net.or.jp>.  */
  96 #define vfork fork
  97
  98 /* Don't close pty in process.c to make it as controlling terminal.
  99    It is already a controlling terminal of subprocess, because we did
 100    ioctl TIOCSCTTY.  */
 101 #define DONT_REOPEN_PTY
 102
 103 /* CLASH_DETECTION is defined in bsd4-3.h.
 104    In FreeBSD 2.1.5 (and other 2.1.x), this results useless symbolic links
 105    remaining in /tmp or other directories with +t bit.
 106    To avoid this problem, you could #undef it to use no file lock. */
 107 /* #undef CLASH_DETECTION */