-/* This file is the configuration file for Linux-based GNU systems
- Copyright (C) 1985, 1986, 1992, 1994, 1996, 1999, 2001, 2002, 2003, 2004,
- 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012 Free Software Foundation, Inc.
-
-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/>. */
-
-/* This file was put together by Michael K. Johnson and Rik Faith. */
-
-
-/*
- * 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. */
-
-#ifndef NOT_C_CODE
-#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 */
-#endif /* NOT_C_CODE */
-
-#if defined HAVE_GRANTPT
-#define UNIX98_PTYS
-
-/* Run only once. We need a `for'-loop because the code uses
- `continue'. */
-
-#define PTY_ITERATION 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_TERMIOS if the system provides POSIX-style
- functions and macros for terminal control. */
-
-#define HAVE_TERMIOS
-
-/* Define HAVE_PTYS if the system supports pty devices. */
-
-#define HAVE_PTYS
-
-#define HAVE_SOCKETS
-
-/* Define this symbol if your system has the functions bcopy, etc. */
-
-#define BSTRING
-
-/* This is used in list_system_processes. */
-#define HAVE_PROCFS 1
-
-/* define MAIL_USE_FLOCK if the mailer uses flock
- to interlock access to /usr/spool/mail/$USER.
- The alternative is that a lock file named
- /usr/spool/mail/$USER.lock. */
-
-/* On GNU/Linux systems, both methods are used by various mail
- programs. I assume that most people are using newer mailers that
- have heard of flock. Change this if you need to. */
-/* Debian contains a patch which says: ``On Debian/GNU/Linux systems,
- configure gets the right answers, and that means *NOT* using flock.
- Using flock is guaranteed to be the wrong thing. See Debian Policy
- for details.'' and then uses `#ifdef DEBIAN'. Unfortunately the
- Debian maintainer hasn't provided a clean fix for Emacs.
- movemail.c will use `maillock' when MAILDIR, HAVE_LIBMAIL and
- HAVE_MAILLOCK_H are defined, so the following appears to be the
- correct logic. -- fx */
-/* We must check for HAVE_LIBLOCKFILE too, as movemail does.
- liblockfile is a Free Software replacement for libmail, used on
- Debian systems and elsewhere. -rfr */
-
-#if !((defined (HAVE_LIBMAIL) || defined (HAVE_LIBLOCKFILE)) && \
- defined (HAVE_MAILLOCK_H))
-#define MAIL_USE_FLOCK
-#endif
-
-/* 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__ */
-#endif /* emacs */
-
-/* Ask GCC where to find libgcc.a. */
-#define LIB_GCC `$(CC) $(C_SWITCH_X_SITE) -print-libgcc-file-name`
-
-#define START_FILES pre-crt0.o $(CRT_DIR)/crt1.o $(CRT_DIR)/crti.o
-
-/* Here is how to find X Windows. LD_SWITCH_X_SITE_AUX gives an -R option
- says where to find X windows at run time. */
-
-#ifdef __mips__
-#define LD_SWITCH_SYSTEM -G 0 LD_SWITCH_X_SITE_AUX
-#else
-#define LD_SWITCH_SYSTEM LD_SWITCH_X_SITE_AUX
-#endif /* __mips__ */
-
-/* Link temacs with -z nocombreloc so that unexec works right, whether or
- not -z combreloc is the default. GNU ld ignores unknown -z KEYWORD
- switches, so this also works with older versions that don't implement
- -z combreloc. */
-#define LD_SWITCH_SYSTEM_TEMACS -z nocombreloc
-
-#ifdef emacs
-#define INTERRUPT_INPUT
-#endif
-
-#define SYSV_SYSTEM_DIR /* use dirent.h */
-
-#define POSIX /* affects getpagesize.h and systty.h */
-#define POSIX_SIGNALS
-
-/* Best not to include -lg, unless it is last on the command line */
-#define LIBS_DEBUG
-#undef LIB_GCC
-#define LIB_GCC
-#define LIB_STANDARD -lgcc -lc -lgcc $(CRT_DIR)/crtn.o
-
-/* Don't use -g in test compiles in configure.
- This is so we will use the same shared libs for that linking
- that are used when linking temacs. */
-#ifdef THIS_IS_CONFIGURE
-#define C_DEBUG_SWITCH
-#endif
-
-/* alane@wozzle.linet.org says that -lipc is not a separate library,
- since libc-4.4.1. So -lipc was deleted. */
-#define LIBS_SYSTEM
-/* _BSD_SOURCE is redundant, at least in glibc2, since we define
- _GNU_SOURCE. Left in in case it's relevant to libc5 systems and
- anyone's still using Emacs on those. --fx 2002-12-14 */
-#define C_SWITCH_SYSTEM -D_BSD_SOURCE
-
-/* Paul Abrahams <abrahams@equinox.shaysnet.com> says this is needed. */
-#define LIB_MOTIF -lXm -lXpm
-
-#ifdef HAVE_LIBNCURSES
-#define TERMINFO
-#define LIBS_TERMCAP -lncurses
-#endif
-
-#define UNEXEC unexelf.o
-
-/* 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
-
-/* Use BSD process groups, but use setpgid() instead of setpgrp() to
- actually set a process group. */
-/* Interesting: only GNU/Linux defines this, but the BSDs do not... */
-#define BSD_PGRPS
-
-#define NARROWPROTO 1
-
-/* Use mmap directly for allocating larger buffers. */
-#ifdef DOUG_LEA_MALLOC
-#undef REL_ALLOC
-#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 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 (), 0); \
- } while (0)
-#endif
-#endif
-
-/* arch-tag: 6244ea2a-abd0-44ec-abec-ff3dcc9afea9
- (do not change this comment) */
+/* 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