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eb697db597
* configure.in (unxec): Do not define and substitute. (UNEXEC_OBJ): New output variable, replaces cpp UNEXEC. * msdos/sed1v2.inp (UNEXEC_OBJ): Use UNEXEC_OBJ instead of unexec. * src/s/usg5-4.h (UNEXEC): Remove, move to configure.in. * src/s/sol2-10.h (UNEXEC): * src/s/irix6-5.h (UNEXEC): * src/s/hpux10-20.h (UNEXEC): * src/s/gnu-linux.h (UNEXEC): * src/s/darwin.h (UNEXEC): * src/s/cygwin.h (UNEXEC): * src/s/bsd-common.h (UNEXEC): * src/s/aix4-2.h (UNEXEC): * src/m/alpha.h (UNEXEC): Likewise. * src/Makefile.in (UNEXEC_OBJ): Define using @UNEXEC_OBJ@.
173 lines
5.9 KiB
C
173 lines
5.9 KiB
C
/* This file is the configuration file for Linux-based GNU systems
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Copyright (C) 1985, 1986, 1992, 1994, 1996, 1999, 2001, 2002, 2003, 2004,
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2005, 2006, 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
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This file was put together by Michael K. Johnson and Rik Faith.
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This file is part of GNU Emacs.
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GNU Emacs is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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GNU Emacs is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
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/* Define symbols to identify the version of Unix this is.
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Define all the symbols that apply correctly. */
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#define USG
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#define GNU_LINUX
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/* SYSTEM_TYPE should indicate the kind of system you are using.
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It sets the Lisp variable system-type. */
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#define SYSTEM_TYPE "gnu/linux" /* All the best software is free. */
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#ifdef emacs
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#ifdef HAVE_LINUX_VERSION_H
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#include <linux/version.h>
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#if LINUX_VERSION_CODE >= 0x20400
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/* 21 Jun 06: Eric Hanchrow <offby1@blarg.net> says this works. */
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#define SIGNALS_VIA_CHARACTERS
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#endif /* LINUX_VERSION_CODE >= 0x20400 */
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#endif /* HAVE_LINUX_VERSION_H */
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#endif /* emacs */
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#if defined HAVE_GRANTPT
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#define UNIX98_PTYS
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/* Run only once. We need a `for'-loop because the code uses `continue'. */
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#define PTY_ITERATION for (i = 0; i < 1; i++)
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#ifdef HAVE_GETPT
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#define PTY_NAME_SPRINTF
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#define PTY_OPEN fd = getpt ()
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#else /* not HAVE_GETPT */
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#define PTY_NAME_SPRINTF strcpy (pty_name, "/dev/ptmx");
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#endif /* not HAVE_GETPT */
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/* Note that grantpt and unlockpt may fork. We must block SIGCHLD to
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prevent sigchld_handler from intercepting the child's death. */
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#define PTY_TTY_NAME_SPRINTF \
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{ \
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char *ptyname; \
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\
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sigblock (sigmask (SIGCHLD)); \
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if (grantpt (fd) == -1 || unlockpt (fd) == -1 \
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|| !(ptyname = ptsname(fd))) \
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{ \
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sigunblock (sigmask (SIGCHLD)); \
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close (fd); \
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return -1; \
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} \
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strncpy (pty_name, ptyname, sizeof (pty_name)); \
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pty_name[sizeof (pty_name) - 1] = 0; \
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sigunblock (sigmask (SIGCHLD)); \
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}
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#else /* not HAVE_GRANTPT */
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/* Letter to use in finding device name of first pty,
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if system supports pty's. 'p' means it is /dev/ptyp0 */
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#define FIRST_PTY_LETTER 'p'
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#endif /* not HAVE_GRANTPT */
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/* Define HAVE_TERMIOS if the system provides POSIX-style
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functions and macros for terminal control. */
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#define HAVE_TERMIOS
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/* Define HAVE_PTYS if the system supports pty devices. */
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#define HAVE_PTYS
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#define HAVE_SOCKETS
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/* Define this symbol if your system has the functions bcopy, etc. */
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#define BSTRING
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/* This is used in list_system_processes. */
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#define HAVE_PROCFS 1
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/* Define CLASH_DETECTION if you want lock files to be written
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so that Emacs can tell instantly when you try to modify
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a file that someone else has modified in his Emacs. */
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#define CLASH_DETECTION
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/* Here, on a separate page, add any special hacks needed
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to make Emacs work on this system. For example,
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you might define certain system call names that don't
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exist on your system, or that do different things on
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your system and must be used only through an encapsulation
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(Which you should place, by convention, in sysdep.c). */
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/* This is needed for dispnew.c:update_frame. */
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#ifdef emacs
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#include <stdio.h> /* Get the definition of _IO_STDIO_H. */
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#if defined(_IO_STDIO_H) || defined(_STDIO_USES_IOSTREAM)
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/* New C libio names. */
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#define GNU_LIBRARY_PENDING_OUTPUT_COUNT(FILE) \
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((FILE)->_IO_write_ptr - (FILE)->_IO_write_base)
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#elif defined (__UCLIBC__)
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/* Using the uClibc library. */
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#define GNU_LIBRARY_PENDING_OUTPUT_COUNT(FILE) \
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((FILE)->__bufpos - (FILE)->__bufstart)
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#else /* !_IO_STDIO_H && ! __UCLIBC__ */
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/* Old C++ iostream names. */
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#define GNU_LIBRARY_PENDING_OUTPUT_COUNT(FILE) \
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((FILE)->_pptr - (FILE)->_pbase)
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#endif /* !_IO_STDIO_H && ! __UCLIBC__ */
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#define INTERRUPT_INPUT
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#endif /* emacs */
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#define SYSV_SYSTEM_DIR /* use dirent.h */
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#define POSIX /* affects getpagesize.h and systty.h */
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/* This is to work around mysterious gcc failures in some system versions.
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It is unlikely that Emacs changes will work around this problem;
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therefore, this should remain permanently. */
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#ifndef HAVE_XRMSETDATABASE
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#define HAVE_XRMSETDATABASE
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#endif
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#define NARROWPROTO 1
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/* Tell that garbage collector that setjmp is known to save all
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registers relevant for conservative garbage collection in the jmp_buf. */
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/* Not all the architectures are tested, but there are Debian packages
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for SCM and/or Guile on them, so the technique must work. See also
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comments in alloc.c concerning setjmp and gcc. Fixme: it's
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probably safe to make this conditional just on GCC, except for ia64
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register window-flushing. */
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/* Don't use #cpu here since in newest development versions of GCC,
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we must call cpp with -traditional, and that disables #cpu. */
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#if defined __i386__ || defined __sparc__ || defined __mc68000__ \
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|| defined __alpha__ || defined __mips__ || defined __s390__ \
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|| defined __arm__ || defined __powerpc__ || defined __amd64__ \
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|| defined __ia64__ || defined __sh__
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#define GC_SETJMP_WORKS 1
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#define GC_MARK_STACK GC_MAKE_GCPROS_NOOPS
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#ifdef __mc68000__
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#define GC_LISP_OBJECT_ALIGNMENT 2
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#endif
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#ifdef __ia64__
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#define GC_MARK_SECONDARY_STACK() \
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do { \
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extern void *__libc_ia64_register_backing_store_base; \
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__builtin_ia64_flushrs (); \
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mark_memory (__libc_ia64_register_backing_store_base, \
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__builtin_ia64_bsp (), 0); \
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} while (0)
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#endif
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#endif
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/* arch-tag: 6244ea2a-abd0-44ec-abec-ff3dcc9afea9
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(do not change this comment) */
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