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428
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1 /* Synched up with: FSF 19.31. */
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2
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3 /* system description file for Interactive (ISC) Unix version 2.2 on
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4 the 386. */
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5
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6 #include "usg5-3.h"
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7
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8 /* select (in -linet) works okay on X ptys, but not on the serial port.
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9 karl@cs.umb.edu says that with that select call, subprocesses made by
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10 (e.g.) M-x grep don't exit cleanly, they just hang. Similar problems
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11 have been observed in ISC 3.0. */
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12 #define BROKEN_SELECT_NON_X
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13
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14 /* karl@cs.umb.edu says that ISC's socket support (in -linet) isn't
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15 what Emacs needs; it makes interrupt-shell-subjob and the like do
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16 nothing. But that appears to have been another manifestation of
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17 the broken select, so it should now be safe to define this again. */
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18 #define HAVE_SOCKETS
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19
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20 #define NO_SOCKETS_IN_FILE_SYSTEM
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21 #define NEED_NET_ERRNO_H
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22
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23 /* This keeps the .cdbx section that gcc puts out when generating
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24 stabs-in-coff output, so Emacs can be debugged. --karl@cs.umb.edu. */
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25 #define USG_SHARED_LIBRARIES
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26
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27 #define NO_FCHMOD
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28
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29 #define HAVE_PTYS
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30 #define MAXNAMLEN 512
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31 #define O_NDELAY O_NONBLOCK
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32 #define MEMORY_IN_STRING_H
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33
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34 /* Tell gmalloc.c that we don't have memmove (system include files to the
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35 contrary!). */
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36 #define MEMMOVE_MISSING
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37
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38 /* -lPW is only needed if not using Gcc. We used to include -lcposix here
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39 for the rename function, but some people say ISC's rename doesn't
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40 work correctly with Emacs so we use Emacs' emulation instead. */
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41 #if defined (__GNUC__)
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42 # define LIB_STANDARD_1 -lcposix
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43 #else /* !__GNUC__ */
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44 # define LIB_STANDARD_1 -lPW
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45 #endif /* !__GNUC__ */
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46
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47 /* LIB_STANDARD_1 is used both here and in LIBS_SYSTEM
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48 (the latter for the sake of configure). */
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49 #define LIB_STANDARD LIB_STANDARD_1 -lc
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50
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51 #define NO_X_DESTROY_DATABASE
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52
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53 /* -linet may be needed to avoid undefined symbols such as gethostname,
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54 inet_addr, gethostbyname, socket, connect, ... */
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55 #define LIBS_SYSTEM -linet LIB_STANDARD_1
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56
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57 /* Inhibit asm code in netinet/in.h. Strictly speaking, only necessary
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58 when -traditional is being used, but it doesn't hurt to
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59 unconditionally define this. */
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60 #define NO_ASM
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61
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62 /* -traditional is not necessary if the system header files are fixed to
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63 define getc and putc in the absence of _POSIX_SOURCE. GCC's from 2.4.4
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64 on do this. */
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65 #if !defined (__GNUC__) || __GNUC__ < 2
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66 # define C_SWITCH_SYSTEM "-traditional"
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67 #endif
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68
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69 /* Some versions of ISC are said to define S_IFLNK even tho
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70 they don't really support symlinks. */
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71 #undef S_IFLNK
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