-/* This file is the configuration file for GNU/Linux operating systems.
- Copyright (C) 1985, 1986, 1992, 1994 Free Software Foundation, Inc.
+/* This file is the configuration file for Linux-based GNU systems
+ Copyright (C) 1985, 1986, 1992, 1994, 1996 Free Software Foundation, Inc.
This file is part of GNU Emacs.
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, 675 Mass Ave, Cambridge, MA 02139, USA. */
+the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA. */
/* This file was put together by Michael K. Johnson and Rik Faith. */
/* #define UNIPLUS */
/* #define USG5 */
#define USG
-/* #define BSD */
+/* #define BSD_SYSTEM */
#define LINUX
/* SYSTEM_TYPE should indicate the kind of system you are using.
It sets the Lisp variable system-type. */
-#define SYSTEM_TYPE "linux" /* All the best software is free. */
+#define SYSTEM_TYPE "gnu/linux" /* All the best software is free. */
-/* Emacs can read input using SIGIO and buffering characters itself,
- or using CBREAK mode and making C-g cause SIGINT.
- The choice is controlled by the variable interrupt_input.
- Define INTERRUPT_INPUT to make interrupt_input = 1 the default (use SIGIO)
-
- SIGIO can be used only on systems that implement it (4.2 and 4.3).
- CBREAK mode has two disadvantages
- 1) At least in 4.2, it is impossible to handle the Meta key properly.
- I hear that in system V this problem does not exist.
- 2) Control-G causes output to be discarded.
- I do not know whether this can be fixed in system V.
-
- Another method of doing input is planned but not implemented.
- It would have Emacs fork off a separate process
- to read the input and send it to the true Emacs process
- through a pipe.
-*/
-
-/* There have been suggestions made to add SIGIO to Linux. If this
- is done, you may, at your discretion, uncomment the line below.
-*/
-
-/* #define INTERRUPT_INPUT */
+/* 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 <linux/version.h>
+
+#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 */
+#endif /* HAVE_LINUX_VERSION_H */
+#endif /* emacs */
+#endif /* NOT_C_CODE */
/* Letter to use in finding device name of first pty,
if system supports pty's. 'p' means it is /dev/ptyp0 */
The alternative is that a lock file named
/usr/spool/mail/$USER.lock. */
-/* Both are used in Linux by different mail programs. I assume that most
- people are using newer mailers that have heard of flock. Change this
- if you need to. */
+/* On GNU/Linux systems, both methods are used by various mail
+ programs. I assume that most people are using newer mailers that
+ have heard of flock. Change this if you need to. */
#define MAIL_USE_FLOCK
/* #define LINUX_LDAV_FILE "/proc/loadavg" */
-/* This is needed for disknew.c:update_frame */
+/* This is needed for dispnew.c:update_frame */
#ifdef emacs
#include <stdio.h> /* Get the definition of _IO_STDIO_H. */
#define LIB_GCC `$(CC) $(C_SWITCH_X_SITE) -print-libgcc-file-name`
#ifndef __ELF__
-/* Linux has crt0.o in a non-standard place */
+/* 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
-/* As of version 1.1.51, Linux does not actually implement SIGIO. */
+#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. */
+
+#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__ */
+#endif /* __ELF__ */
+
+/* As of version 1.1.51, Linux did not actually implement SIGIO.
+ But it works in newer versions. */
/* Here we assume that signal.h is already included. */
#ifdef emacs
+#ifdef LINUX_SIGIO_DOES_WORK
+#define INTERRUPT_INPUT
+#else
#undef SIGIO
+/* Some versions of Linux define SIGURG and SIGPOLL as aliases for SIGIO.
+ This prevents lossage in process.c. */
+#undef SIGURG
+#undef SIGPOLL
+#endif
#endif
/* This is needed for sysdep.c */
#define HAVE_VFORK
#define HAVE_SYS_SIGLIST
#define HAVE_GETWD /* cure conflict with getcwd? */
+#define HAVE_WAIT_HEADER
#define SYSV_SYSTEM_DIR /* use dirent.h */
/* Best not to include -lg, unless it is last on the command line */
#define LIBS_DEBUG
-#define LIBS_TERMCAP -ltermcap -lcurses /* save some space with shared libs*/
#ifndef __ELF__
#define LIB_STANDARD -lc /* avoid -lPW */
#else
#define C_SWITCH_SYSTEM -D_BSD_SOURCE
#endif
+/* 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 HAVE_SYSVIPC
#ifdef __ELF__
#define UNEXEC unexelf.o
+#ifndef LINUX_MAP_SHARED_DOES_WORK
#define UNEXEC_USE_MAP_PRIVATE
#endif
+#endif
#ifdef LINUX_QMAGIC
#endif
/* The regex.o routines are a part of the GNU C-library used with Linux. */
-#define REGEXP_IN_LIBC
+/* 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. */
+
+#define BSD_PGRPS
+#define setpgrp(pid,pgid) setpgid((pid),(pgid))
HCoop / bpt / emacs.git / blobdiff