-/* This file is the configuration file for Linux-based GNU systems
-
-Copyright (C) 1985-1986, 1992, 1994, 1996, 1999, 2001-2012
- Free Software Foundation, Inc.
-
-This file was put together by Michael K. Johnson and Rik Faith.
-
-This file is part of GNU Emacs.
-
-GNU Emacs 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 3 of the License, or
-(at your option) any later version.
-
-GNU Emacs 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.
-
-You should have received a copy of the GNU General Public License
-along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
-
-/* Define symbols to identify the version of Unix this is.
- Define all the symbols that apply correctly. */
-#define USG
-#define GNU_LINUX
-
-/* SYSTEM_TYPE should indicate the kind of system you are using.
- It sets the Lisp variable system-type. */
-#define SYSTEM_TYPE "gnu/linux" /* All the best software is free. */
-
-#ifdef emacs
-#ifdef HAVE_LINUX_VERSION_H
-#include <linux/version.h>
-
-#if LINUX_VERSION_CODE >= 0x20400
-/* 21 Jun 06: Eric Hanchrow <offby1@blarg.net> says this works. */
-#define SIGNALS_VIA_CHARACTERS
-#endif /* LINUX_VERSION_CODE >= 0x20400 */
-#endif /* HAVE_LINUX_VERSION_H */
-#endif /* emacs */
-
-#if defined HAVE_GRANTPT
-#define UNIX98_PTYS
-
-/* Run only once. We need a `for'-loop because the code uses `continue'. */
-#define PTY_ITERATION int i; for (i = 0; i < 1; i++)
-
-#ifdef HAVE_GETPT
-#define PTY_NAME_SPRINTF
-#define PTY_OPEN fd = getpt ()
-#else /* not HAVE_GETPT */
-#define PTY_NAME_SPRINTF strcpy (pty_name, "/dev/ptmx");
-#endif /* not HAVE_GETPT */
-
-/* Note that grantpt and unlockpt may fork. We must block SIGCHLD to
- prevent sigchld_handler from intercepting the child's death. */
-#define PTY_TTY_NAME_SPRINTF \
- { \
- char *ptyname; \
- \
- sigblock (sigmask (SIGCHLD)); \
- if (grantpt (fd) == -1 || unlockpt (fd) == -1 \
- || !(ptyname = ptsname(fd))) \
- { \
- sigunblock (sigmask (SIGCHLD)); \
- close (fd); \
- return -1; \
- } \
- strncpy (pty_name, ptyname, sizeof (pty_name)); \
- pty_name[sizeof (pty_name) - 1] = 0; \
- sigunblock (sigmask (SIGCHLD)); \
- }
-
-#else /* not HAVE_GRANTPT */
-
-/* Letter to use in finding device name of first pty,
- if system supports pty's. 'p' means it is /dev/ptyp0 */
-#define FIRST_PTY_LETTER 'p'
-
-#endif /* not HAVE_GRANTPT */
-
-/* Define HAVE_PTYS if the system supports pty devices. */
-#define HAVE_PTYS
-
-#define HAVE_SOCKETS
-
-/* This is used in list_system_processes. */
-#define HAVE_PROCFS 1
-
-/* Define CLASH_DETECTION if you want lock files to be written
- so that Emacs can tell instantly when you try to modify
- a file that someone else has modified in his Emacs. */
-#define CLASH_DETECTION
-
-/* Here, on a separate page, add any special hacks needed
- to make Emacs work on this system. For example,
- you might define certain system call names that don't
- exist on your system, or that do different things on
- your system and must be used only through an encapsulation
- (Which you should place, by convention, in sysdep.c). */
-\f
-/* This is needed for dispnew.c:update_frame. */
-#ifdef emacs
-#include <stdio.h> /* Get the definition of _IO_STDIO_H. */
-#if defined (_IO_STDIO_H) || defined (_STDIO_USES_IOSTREAM)
-/* New C libio names. */
-#define GNU_LIBRARY_PENDING_OUTPUT_COUNT(FILE) \
- ((FILE)->_IO_write_ptr - (FILE)->_IO_write_base)
-#elif defined (__UCLIBC__)
-/* Using the uClibc library. */
-#define GNU_LIBRARY_PENDING_OUTPUT_COUNT(FILE) \
- ((FILE)->__bufpos - (FILE)->__bufstart)
-#else /* !_IO_STDIO_H && ! __UCLIBC__ */
-/* Old C++ iostream names. */
-#define GNU_LIBRARY_PENDING_OUTPUT_COUNT(FILE) \
- ((FILE)->_pptr - (FILE)->_pbase)
-#endif /* !_IO_STDIO_H && ! __UCLIBC__ */
-
-#define INTERRUPT_INPUT
-#endif /* emacs */
-
-#define POSIX /* affects getpagesize.h and systty.h */
-
-/* This is to work around mysterious gcc failures in some system versions.
- It is unlikely that Emacs changes will work around this problem;
- therefore, this should remain permanently. */
-#ifndef HAVE_XRMSETDATABASE
-#define HAVE_XRMSETDATABASE
-#endif
-
-#define NARROWPROTO 1
-
-/* Tell that garbage collector that setjmp is known to save all
- registers relevant for conservative garbage collection in the jmp_buf. */
-/* Not all the architectures are tested, but there are Debian packages
- for SCM and/or Guile on them, so the technique must work. See also
- comments in alloc.c concerning setjmp and gcc. Fixme: it's
- probably safe to make this conditional just on GCC, except for ia64
- register window-flushing. */
-/* Don't use #cpu here since in newest development versions of GCC,
- we must call cpp with -traditional, and that disables #cpu. */
-#if defined __i386__ || defined __sparc__ || defined __mc68000__ \
- || defined __alpha__ || defined __mips__ || defined __s390__ \
- || defined __arm__ || defined __powerpc__ || defined __amd64__ \
- || defined __ia64__ || defined __sh__
-#define GC_SETJMP_WORKS 1
-#define GC_MARK_STACK GC_MAKE_GCPROS_NOOPS
-#ifdef __mc68000__
-#define GC_LISP_OBJECT_ALIGNMENT 2
-#endif
-#ifdef __ia64__
-#define GC_MARK_SECONDARY_STACK() \
- do { \
- extern void *__libc_ia64_register_backing_store_base; \
- __builtin_ia64_flushrs (); \
- mark_memory (__libc_ia64_register_backing_store_base, \
- __builtin_ia64_bsp ()); \
- } while (0)
-#endif
-#endif
+/* This file is the configuration file for Linux-based GNU systems
+
+Copyright (C) 1985-1986, 1992, 1994, 1996, 1999, 2001-2012
+ Free Software Foundation, Inc.
+
+This file was put together by Michael K. Johnson and Rik Faith.
+
+This file is part of GNU Emacs.
+
+GNU Emacs 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 3 of the License, or
+(at your option) any later version.
+
+GNU Emacs 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.
+
+You should have received a copy of the GNU General Public License
+along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
+
+#ifdef __ia64__
+#define GC_MARK_SECONDARY_STACK() \
+ do { \
+ extern void *__libc_ia64_register_backing_store_base; \
+ __builtin_ia64_flushrs (); \
+ mark_memory (__libc_ia64_register_backing_store_base, \
+ __builtin_ia64_bsp ()); \
+ } while (0)
+#endif
+
+/* Tell that garbage collector that setjmp is known to save all
+ registers relevant for conservative garbage collection in the jmp_buf.
+ Not all the architectures are tested, but there are Debian packages
+ for SCM and/or Guile on them, so the technique must work. See also
+ comments in alloc.c concerning setjmp and gcc. Fixme: it's
+ probably safe to just let the GCC conditional in AH_BOTTOM handle this.
+*/
+#if defined __i386__ || defined __sparc__ || defined __mc68000__ \
+ || defined __alpha__ || defined __mips__ || defined __s390__ \
+ || defined __arm__ || defined __powerpc__ || defined __amd64__ \
+ || defined __ia64__ || defined __sh__
+#define GC_SETJMP_WORKS 1
+#else
+#define GC_MARK_STACK GC_USE_GCPROS_AS_BEFORE
+#endif
HCoop / bpt / emacs.git / blobdiff