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emacs/src/s/isc2-2.h
Karl Heuer 7339384c9e (HAVE_SOCKETS): Moved here from s/isc4-1.h.
(NO_SOCKETS_IN_FILE_SYSTEM, NEED_NET_ERRNO_H): Likewise.
(LIBS_SYSTEM): Use -linet unconditionally.
1996-01-30 20:38:53 +00:00

78 lines
2.6 KiB
C

/* system description file for Interactive (ISC) Unix version 2.2 on
the 386. */
#include "usg5-3.h"
/* select (in -linet) works okay on X ptys, but not on the serial port.
karl@cs.umb.edu says that with that select call, subprocesses made by
(e.g.) M-x grep don't exit cleanly, they just hang. Similar problems
have been observed in ISC 3.0. */
#define BROKEN_SELECT_NON_X
/* karl@cs.umb.edu says that ISC's socket support (in -linet) isn't
what Emacs needs; it makes interrupt-shell-subjob and the like do
nothing. But that appears to have been another manifestation of
the broken select, so it should now be safe to define this again. */
#define HAVE_SOCKETS
#define NO_SOCKETS_IN_FILE_SYSTEM
#define NEED_NET_ERRNO_H
/* This keeps the .cdbx section that gcc puts out when generating
stabs-in-coff output, so Emacs can be debugged. --karl@cs.umb.edu. */
#define USG_SHARED_LIBRARIES
/* We can support lock files. */
#define CLASH_DETECTION
#define NO_FCHMOD
#define HAVE_PTYS
#define MAXNAMLEN 512
#define O_NDELAY O_NONBLOCK
#define MEMORY_IN_STRING_H
/* Tell gmalloc.c that we don't have memmove (system include files to the
contrary!). */
#define MEMMOVE_MISSING
/* Send a signal to a subprocess by "typing" a signal character. */
#define SIGNALS_VIA_CHARACTERS
/* -lPW is only needed if not using Gcc. We used to include -lcposix here
for the rename function, but some people say ISC's rename doesn't
work correctly with Emacs so we use Emacs' emulation instead. */
#if defined (__GNUC__)
# define LIB_STANDARD_1 -lcposix
#else /* !__GNUC__ */
# define LIB_STANDARD_1 -lPW
#endif /* !__GNUC__ */
/* LIB_STANDARD_1 is used both here and in LIBS_SYSTEM
(the latter for the sake of configure). */
#define LIB_STANDARD LIB_STANDARD_1 -lc
#define NO_X_DESTROY_DATABASE
/* -linet may be needed to avoid undefined symbols such as gethostname,
inet_addr, gethostbyname, socket, connect, ... */
#define LIBS_SYSTEM -linet LIB_STANDARD_1
/* This system has job control. */
#undef NOMULTIPLEJOBS
/* Inhibit asm code in netinet/in.h. Strictly speaking, only necessary
when -traditional is being used, but it doesn't hurt to
unconditionally define this. */
#define NO_ASM
/* -traditional is not necessary if the system header files are fixed to
define getc and putc in the absence of _POSIX_SOURCE. GCC's from 2.4.4
on do this. */
#if !defined (__GNUC__) || __GNUC__ < 2
# define C_SWITCH_SYSTEM -traditional
#endif
/* Some versions of ISC are said to define S_IFLNK even tho
they don't really support symlinks. */
#undef S_IFLNK