X-Git-Url: https://code.delx.au/gnu-emacs/blobdiff_plain/b89a6b600b0f0acac4466bef69c9820b51574c4f..e7dbdb6dfc3ffdc25f8d32a43683500f596d9784:/src/s/gnu-linux.h
diff --git a/src/s/gnu-linux.h b/src/s/gnu-linux.h
index 24a37f964d..0c198de26d 100644
--- a/src/s/gnu-linux.h
+++ b/src/s/gnu-linux.h
@@ -1,13 +1,13 @@
/* 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 Free Software Foundation, Inc.
+ 2005, 2006, 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
This file is part of GNU Emacs.
-GNU Emacs is free software; you can redistribute it and/or modify
+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 2, or (at your option)
-any later version.
+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
@@ -15,9 +15,7 @@ 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; see the file COPYING. If not, write to
-the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-Boston, MA 02110-1301, USA. */
+along with GNU Emacs. If not, see . */
/* This file was put together by Michael K. Johnson and Rik Faith. */
@@ -27,11 +25,7 @@ Boston, MA 02110-1301, USA. */
* Define all the symbols that apply correctly.
*/
-/* #define UNIPLUS */
-/* #define USG5 */
#define USG
-/* #define BSD_SYSTEM */
-#define LINUX
#define GNU_LINUX
/* SYSTEM_TYPE should indicate the kind of system you are using.
@@ -39,21 +33,14 @@ Boston, MA 02110-1301, USA. */
#define SYSTEM_TYPE "gnu/linux" /* All the best software is free. */
-/* Check the version number of Linux--if it is at least 1.2.0,
- it is safe to use SIGIO. */
#ifndef NOT_C_CODE
#ifdef emacs
#ifdef HAVE_LINUX_VERSION_H
#include
-#if LINUX_VERSION_CODE > 0x10200
-#define LINUX_SIGIO_DOES_WORK
-#endif /* LINUX_VERSION_CODE > 0x10200 */
-#if LINUX_VERSION_CODE >= 0x20000
-#define LINUX_MAP_SHARED_DOES_WORK
-#endif /* LINUX_VERSION_CODE >= 0x20000 */
#if LINUX_VERSION_CODE >= 0x20400
-#define LINUX_SIGNALS_VIA_CHARACTERS_DOES_WORK
+/* 21 Jun 06: Eric Hanchrow says this works. */
+#define SIGNALS_VIA_CHARACTERS
#endif /* LINUX_VERSION_CODE >= 0x20400 */
#endif /* HAVE_LINUX_VERSION_H */
#endif /* emacs */
@@ -101,7 +88,7 @@ Boston, MA 02110-1301, USA. */
#define FIRST_PTY_LETTER 'p'
-#endif /* not HAVE_GRANDPT */
+#endif /* not HAVE_GRANTPT */
/* Define HAVE_TERMIOS if the system provides POSIX-style
functions and macros for terminal control. */
@@ -118,13 +105,8 @@ Boston, MA 02110-1301, USA. */
#define BSTRING
-/* subprocesses should be defined if you want to
- have code for asynchronous subprocesses
- (as used in M-x compile and M-x shell).
- This is generally OS dependent, and not supported
- under most USG systems. */
-
-#define subprocesses
+/* 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/$USER.
@@ -164,12 +146,6 @@ Boston, MA 02110-1301, USA. */
your system and must be used only through an encapsulation
(Which you should place, by convention, in sysdep.c). */
-/* If you mount the proc file system somewhere other than /proc
- you will have to uncomment the following and make the proper
- changes */
-
-/* #define LINUX_LDAV_FILE "/proc/loadavg" */
-
/* This is needed for dispnew.c:update_frame */
#ifdef emacs
@@ -178,24 +154,22 @@ Boston, MA 02110-1301, USA. */
/* new C libio names */
#define GNU_LIBRARY_PENDING_OUTPUT_COUNT(FILE) \
((FILE)->_IO_write_ptr - (FILE)->_IO_write_base)
-#else /* !_IO_STDIO_H */
+#elif defined (__UCLIBC__)
+/* using the uClibc library */
+#define GNU_LIBRARY_PENDING_OUTPUT_COUNT(FILE) \
+ ((FILE)->__bufpos - (FILE)->__bufstart)
+#else /* !_IO_STDIO_H && ! __UCLIBC__ */
/* old C++ iostream names */
#define GNU_LIBRARY_PENDING_OUTPUT_COUNT(FILE) \
((FILE)->_pptr - (FILE)->_pbase)
-#endif /* !_IO_STDIO_H */
+#endif /* !_IO_STDIO_H && ! __UCLIBC__ */
#endif /* emacs */
/* Ask GCC where to find libgcc.a. */
#define LIB_GCC `$(CC) $(C_SWITCH_X_SITE) -print-libgcc-file-name`
-#ifndef __ELF__
-/* GNU/Linux usually has crt0.o in a non-standard place */
-#define START_FILES pre-crt0.o /usr/lib/crt0.o
-#else
#define START_FILES pre-crt0.o /usr/lib/crt1.o /usr/lib/crti.o
-#endif
-#ifdef __ELF__
/* 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. */
@@ -210,28 +184,11 @@ Boston, MA 02110-1301, USA. */
switches, so this also works with older versions that don't implement
-z combreloc. */
#define LD_SWITCH_SYSTEM_TEMACS -z nocombreloc
-#endif /* __ELF__ */
-/* As of version 1.1.51, Linux did not actually implement SIGIO.
- But it works in newer versions. */
#ifdef emacs
-#ifdef LINUX_SIGIO_DOES_WORK
#define INTERRUPT_INPUT
-#else
-#define BROKEN_SIGIO
-/* Some versions of Linux define SIGURG and SIGPOLL as aliases for SIGIO.
- This prevents lossage in process.c. */
-#define BROKEN_SIGURG
-#define BROKEN_SIGPOLL
-#endif
#endif
-/* This is needed for sysdep.c */
-
-#define NO_SIOCTL_H /* don't have sioctl.h */
-
-#define HAVE_WAIT_HEADER
-
#define SYSV_SYSTEM_DIR /* use dirent.h */
#define POSIX /* affects getpagesize.h and systty.h */
@@ -239,13 +196,9 @@ Boston, MA 02110-1301, USA. */
/* Best not to include -lg, unless it is last on the command line */
#define LIBS_DEBUG
-#ifndef __ELF__
-#define LIB_STANDARD -lc /* avoid -lPW */
-#else
#undef LIB_GCC
#define LIB_GCC
#define LIB_STANDARD -lgcc -lc -lgcc /usr/lib/crtn.o
-#endif
/* Don't use -g in test compiles in configure.
This is so we will use the same shared libs for that linking
@@ -254,27 +207,10 @@ Boston, MA 02110-1301, USA. */
#define C_DEBUG_SWITCH
#endif
-/* 21 Jun 06: Eric Hanchrow says this works. */
-#ifdef LINUX_SIGNALS_VIA_CHARACTERS_DOES_WORK
-#define SIGNALS_VIA_CHARACTERS
-#endif
-
-/* Rob Malouf says:
- SYSV IPC is standard a standard part of Linux since version 0.99pl10,
- and is a very common addition to previous versions. */
-
-#ifdef TERM
-#define LIBS_SYSTEM -lclient
-#define C_SWITCH_SYSTEM -D_BSD_SOURCE -I/usr/src/term
-#else
-/* 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
-#endif
/* Paul Abrahams says this is needed. */
#define LIB_MOTIF -lXm -lXpm
@@ -284,47 +220,7 @@ Boston, MA 02110-1301, USA. */
#define LIBS_TERMCAP -lncurses
#endif
-#define HAVE_SYSVIPC
-
-#ifdef __ELF__
#define UNEXEC unexelf.o
-#ifndef LINUX_MAP_SHARED_DOES_WORK
-#define UNEXEC_USE_MAP_PRIVATE
-#endif
-#endif
-
-#ifdef LINUX_QMAGIC
-
-#define HAVE_TEXT_START
-#define UNEXEC unexsunos4.o
-#define N_PAGSIZ(x) PAGE_SIZE
-
-#else /* not LINUX_QMAGIC */
-
-#define A_TEXT_OFFSET(hdr) (N_MAGIC(hdr) == QMAGIC ? sizeof (struct exec) : 0)
-#define A_TEXT_SEEK(hdr) (N_TXTOFF(hdr) + A_TEXT_OFFSET(hdr))
-#define ADJUST_EXEC_HEADER \
- unexec_text_start = N_TXTADDR(ohdr) + A_TEXT_OFFSET(ohdr)
-
-#endif /* not LINUX_QMAGIC */
-
-#if 0
-/* In 19.23 and 19.24, configure sometimes fails to define these.
- It has to do with the fact that configure uses CFLAGS when linking
- while Makefile.in.in (erroneously) fails to do so when linking temacs. */
-#ifndef HAVE_GETTIMEOFDAY
-#define HAVE_GETTIMEOFDAY
-#endif
-#ifndef HAVE_MKDIR
-#define HAVE_MKDIR
-#endif
-#ifndef HAVE_RMDIR
-#define HAVE_RMDIR
-#endif
-#ifndef HAVE_XSCREENNUMBEROFSCREEN
-#define HAVE_XSCREENNUMBEROFSCREEN
-#endif
-#endif /* 0 */
/* This is to work around mysterious gcc failures in some system versions.
It is unlikely that Emacs changes will work around this problem;
@@ -333,15 +229,9 @@ Boston, MA 02110-1301, USA. */
#define HAVE_XRMSETDATABASE
#endif
-/* The regex.o routines are a part of the GNU C-library used with Linux. */
-/* However, sometimes they disagree with the src/regex.h that comes with Emacs,
- and that can make trouble in etags.c because it gets the regex.h from Emacs
- and the function definitions in libc. So turn this off. */
-/* #define REGEXP_IN_LIBC */
-
/* 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
@@ -365,7 +255,7 @@ Boston, MA 02110-1301, USA. */
#if defined __i386__ || defined __sparc__ || defined __mc68000__ \
|| defined __alpha__ || defined __mips__ || defined __s390__ \
|| defined __arm__ || defined __powerpc__ || defined __amd64__ \
- || defined __ia64__
+ || defined __ia64__ || defined __sh__
#define GC_SETJMP_WORKS 1
#define GC_MARK_STACK GC_MAKE_GCPROS_NOOPS
#ifdef __mc68000__