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rldefs.h
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C/C++ Source or Header
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1996-09-28
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5KB
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169 lines
/* rldefs.h -- an attempt to isolate some of the system-specific defines
for readline. This should be included after any files that define
system-specific constants like _POSIX_VERSION or USG. */
/* Copyright (C) 1987,1989 Free Software Foundation, Inc.
This file contains the Readline Library (the Library), a set of
routines for providing Emacs style line input to programs that ask
for it.
The Library is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
The Library is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
The GNU General Public License is often shipped with GNU software, and
is generally kept in a file called COPYING or LICENSE. If you do not
have a copy of the license, write to the Free Software Foundation,
675 Mass Ave, Cambridge, MA 02139, USA. */
#if !defined (_RLDEFS_H)
#define _RLDEFS_H
#ifdef HAVE_UNISTD_H
# include <sys/types.h>
# include <unistd.h>
#endif
#if defined (__GNUC__)
# undef alloca
# define alloca __builtin_alloca
#else
# if defined (sparc) || defined (HAVE_ALLOCA_H)
# include <alloca.h>
# endif
#endif
#define NEW_TTY_DRIVER
#define HAVE_BSD_SIGNALS
/* #define USE_XON_XOFF */
#if defined (__linux__)
# include <termcap.h>
#endif /* __linux__ */
/* Some USG machines have BSD signal handling (sigblock, sigsetmask, etc.) */
#if defined (USG) && !defined (hpux)
# undef HAVE_BSD_SIGNALS
#endif
#if defined (_POSIX_VERSION)
# define HAVE_POSIX_SIGNALS
# if !defined (O_NDELAY)
# define O_NDELAY O_NONBLOCK /* Posix-style non-blocking i/o */
# endif /* O_NDELAY */
#endif
#if defined (HAVE_TERMIOS_H)
# undef NEW_TTY_DRIVER
# define TERMIOS_TTY_DRIVER
# include <termios.h>
#elif defined (HAVE_TERMIO_H)
# undef NEW_TTY_DRIVER
# define TERMIO_TTY_DRIVER
# include <termio.h>
# if !defined (TCOON)
# define TCOON 1
# endif
#elif defined (HAVE_SGTTY_H)
# include <sgtty.h>
#endif
/* System V.3 machines have the old 4.1 BSD `reliable' signal interface. */
#if !defined (HAVE_BSD_SIGNALS) && !defined (HAVE_POSIX_SIGNALS)
# if defined (USGr3)
# if !defined (HAVE_USG_SIGHOLD)
# define HAVE_USG_SIGHOLD
# endif /* !HAVE_USG_SIGHOLD */
# endif /* USGr3 */
#endif /* !HAVE_BSD_SIGNALS && !HAVE_POSIX_SIGNALS */
/* Define _POSIX_VDISABLE if we are not using the `new' tty driver and
it is not already defined. It is used both to determine if a
special character is disabled and to disable certain special
characters. Posix systems should set to 0, USG systems to -1. */
#if !defined (NEW_TTY_DRIVER) && !defined (_POSIX_VDISABLE)
# if defined (_POSIX_VERSION)
# define _POSIX_VDISABLE 0
# else /* !_POSIX_VERSION */
# define _POSIX_VDISABLE -1
# endif /* !_POSIX_VERSION */
#endif /* !NEW_TTY_DRIVER && !_POSIX_VDISABLE */
/* unistd.h defines _POSIX_VERSION on POSIX.1 systems. */
#if defined(HAVE_DIRENT_H) || defined(_POSIX_VERSION)
# include <dirent.h>
# if !defined (direct)
# define direct dirent
# endif /* !direct */
# define D_NAMLEN(dirent) (strlen((dirent)->d_name))
#else /* not (HAVE_DIRENT_H or _POSIX_VERSION) */
# define D_NAMLEN(dirent) ((dirent)->d_namlen)
# if defined (HAVE_SYS_NDIR_H)
# include <sys/ndir.h>
# endif /* HAVE_SYS_NDIR_H */
# if defined (HAVE_SYS_DIR_H)
# include <sys/dir.h>
# endif /* HAVE_SYS_DIR_H */
# if defined (HAVE_NDIR_H)
# include <ndir.h>
# endif /* HAVE_NDIR_H */
#endif /* not (HAVE_DIRENT_H or _POSIX_VERSION) */
#if defined (USG) && defined (TIOCGWINSZ) && !defined (Linux)
# include <sys/stream.h>
# if defined (HAVE_SYS_PTEM_H)
# include <sys/ptem.h>
# endif /* HAVE_SYS_PTEM_H */
# if defined (HAVE_SYS_PTE_H)
# include <sys/pte.h>
# endif /* HAVE_SYS_PTE_H */
#endif /* USG && TIOCGWINSZ && !Linux */
/* Posix macro to check file in statbuf for directory-ness.
This requires that <sys/stat.h> be included before this test. */
#if defined (S_IFDIR) && !defined (S_ISDIR)
#define S_ISDIR(m) (((m)&S_IFMT) == S_IFDIR)
#endif
/* Decide which flavor of the header file describing the C library
string functions to include and include it. */
#if defined (STDC_HEADERS) || defined (HAVE_STRING_H)
# include <string.h>
/* An ANSI string.h and pre-ANSI memory.h might conflict. */
# if !defined (STDC_HEADERS) && defined (HAVE_MEMORY_H)
# include <memory.h>
# endif /* not STDC_HEADERS and HAVE_MEMORY_H */
# define index strchr
# define rindex strrchr
# define bcopy(s, d, n) memcpy ((d), (s), (n))
# define bcmp(s1, s2, n) memcmp ((s1), (s2), (n))
# define bzero(s, n) memset ((s), 0, (n))
#else /* not STDC_HEADERS and not HAVE_STRING_H */
# include <strings.h>
/* memory.h and strings.h conflict on some systems. */
#endif /* not STDC_HEADERS and not HAVE_STRING_H */
#if defined (HAVE_VARARGS_H)
# include <varargs.h>
#endif /* HAVE_VARARGS_H */
/* This definition is needed by readline.c, rltty.c, and signals.c. */
/* If on, then readline handles signals in a way that doesn't screw. */
#define HANDLE_SIGNALS
#if !defined (emacs_mode)
# define no_mode -1
# define vi_mode 0
# define emacs_mode 1
#endif
#endif /* !_RLDEFS_H */