X-Git-Url: https://git.hcoop.net/bpt/emacs.git/blobdiff_plain/0f2256ef28aeacc424782cacd15e93b5605faaee..a3fc8840a3c1586b17c9d211e959571fba365af6:/src/s/gnu-linux.h diff --git a/src/s/gnu-linux.h b/src/s/gnu-linux.h index 8d2278ec7e..3113565d36 100644 --- a/src/s/gnu-linux.h +++ b/src/s/gnu-linux.h @@ -1,5 +1,5 @@ -/* 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. @@ -15,7 +15,8 @@ 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, 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. */ @@ -28,37 +29,30 @@ the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ /* #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 + +#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 */ @@ -99,9 +93,9 @@ the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ The alternative is that a lock file named /usr/spool/mail/$USER.lock. */ -/* Both are used in Linux by different mail programs. I assume that most - people are using newer mailers that have heard of flock. Change this - if you need to. */ +/* On GNU/Linux systems, both methods are used by various mail + programs. I assume that most people are using newer mailers that + have heard of flock. Change this if you need to. */ #define MAIL_USE_FLOCK @@ -140,7 +134,7 @@ the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ /* #define LINUX_LDAV_FILE "/proc/loadavg" */ -/* This is needed for disknew.c:update_frame */ +/* This is needed for dispnew.c:update_frame */ #ifdef emacs #include /* Get the definition of _IO_STDIO_H. */ @@ -159,21 +153,37 @@ the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ #define LIB_GCC `$(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 */ @@ -182,6 +192,7 @@ the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ #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 */ @@ -190,7 +201,6 @@ the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ /* 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 @@ -224,12 +234,22 @@ the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ #define C_SWITCH_SYSTEM -D_BSD_SOURCE #endif +/* Paul Abrahams 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 @@ -277,3 +297,8 @@ the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ 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))