Emacs machines list
Copyright (C) 1989, 1990, 1992, 1993, 1998, 2001, 2002, 2003, 2004,
2005, 2006, 2007, 2008, 2009 Free Software Foundation, Inc.
See the end of the file for license conditions.
This is a list of the status of GNU Emacs on various machines and systems.
For each system and machine, we give the configuration name you should
pass to the `configure' script to prepare to build Emacs for that
The `configure' script uses the configuration name to decide which
machine and operating system description files `src/config.h' should
include. The machine description files are all in `src/m', and have
names similar to, but not identical to, the machine names used in
configuration names. The operating system files are all in `src/s',
and are named similarly. See the `configure' script if you need to
know which configuration names use which machine and operating system
If you add support for a new configuration, add a section to this
file, and then edit the `configure' script to tell it which
configuration name(s) should select your new machine description and
system description files.
Some obsolete platforms are unsupported beginning with Emacs 23.1, see
the full list at the end of this file.
Here are the configurations Emacs is intended to work with, with the
corresponding configuration names. You can postpend version numbers
to operating system names (i.e. sunos4.1) or architecture names (i.e.
hppa1.1). If you leave out the version number, the `configure' script
will configure Emacs for the latest version it knows about.
Alpha (DEC) running GNU/Linux (alpha-dec-linux-gnu)
DEC C compiler version 5.9 (DEC C V5.9-005 on Digital UNIX V4.0f)
is reported to produce bogus binaries of Emacs 21.2 when the
command-line switches "-O4 -arch ev6 -tune ev6" are used. Using
just -O4 produces a good executable.
For 4.0 revision 564, and 4.0A and 4.0B, Emacs 20 seems to work
with no special configuration options. However, if you use GCC as
your compiler, you will need version 2.8.1 or later, as older
versions fail to build with a message "Invalid dimension for the
Note that the X11 libraries on GNU/Linux systems for the Alpha are
said to have bugs that prevent Emacs from working with X (as of
November 1995). Recent releases work (July 2000).
Apple Macintosh running Mac OS X
For installation instructions see the file nextstep/INSTALL.
Apple PowerPC Macintosh running GNU/Linux
There are special considerations for a variety of this system which
is known as the ``Yellow Dog [GNU/]Linux'': Emacs may crash during
dumping. To solve this, edit the header file src/m/macppc.h in the
Emacs distribution, and remove the "#if 0" and "#endif" directives
which surround the following block near the end of the file:
#if 0 /* This breaks things on PPC GNU/Linux except for Yellowdog,
even with identical GCC, as, ld. Let's take it out until we
know what's really going on here. */
/* GCC 2.95 and newer on GNU/Linux PPC changed the load address to
#if defined __linux__
#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 95)
#define DATA_SEG_BITS 0x10000000
#endif /* 0 */
After that, reconfigure and rebuild Emacs. It should now build
Cubix QBx/386 (i386-cubix-sysv)
Changes merged in 19.1. Systems before 2/A/0 may fail to compile etags.c
due to a compiler bug.
Motorola Delta 147 (m68k-motorola-sysv)
The EMacs 19.26 pretest was reported to work.
Motorola Delta boxes running System V/68 release 3.
Tested on 147 board with SVR3V7, no X and gcc.
Tested on 167 board with SVR3V7, no X, cc, gnucc and gcc.
Reports say it works with X too.
The installation script chooses the compiler itself. gnucc is
Fujitsu DS/90 (sparc-fujitsu-sysv4)
Changes merged in 20.3.
HP 9000 series 700 or 800 (Spectrum) (hppa1.0-hp-hpux or hppa1.1-hp-hpux
Use hppa1.1 for the 700 series and hppa1.0 for the 800
series machines. (Emacs may not actually care which one you use.)
Emacs 20 may work on HPUX 10. You need patch PHSS_6202 to install
the Xaw and Xmu libraries. On HPUX 10.20 you may need to compile with GCC;
when Emacs was compiled with HP's C compiler, HP92453-01 A.10.32.03,
the subprocess features failed to work.
19.26 is believed to work on HPUX 9 provided you compile with GCC.
As of version 19.16, Emacs was reported to build (using GCC) and run
on HP 9000/700 series machines running HP/UX versions 8.07 and 9.01.
The HP compiler is known to fail on some versions if you use +O3,
but it may work with lower optimization levels.
Use hppa1.1-hp-hpux9shr to use shared libraries on HPUX version 9.
You may need to create the X libraries libXaw.a and libXmu.a from
the MIT X distribute, and you may need to edit src/Makefile's
definition of LIBXT to look like this:
LIBXT= $(LIBW) -lXmu -lXt $(LIBXTR6) -lXext
Some people report trouble using the GNU memory allocator under
HP/UX version 9. The problems often manifest as lots of ^@'s in the
We are told that these problems go away if you obtain the latest
patches for the HP/UX C compiler. James J Dempsey
<email@example.com> says that this set of versions works for him:
HP92453-01 A.09.28 HP C Compiler
HP92453-01 A.09.28 HP C Compiler
HP-UX SLLIC/OPTIMIZER HP-UX.09.00.23 02/18/93
Ucode Code Generator - HP-UX.09.00.23.5 (patch) 2/18/93
For 700 series machines, the HP-UX patch needed is known as
PHSS_2653. (Perhaps for 800 series machines as well; we don't
know.) If you are on the Internet, you should be able to obtain
this patch by using telnet to access the machine
support.mayfield.hp.com and logging in as "hpslreg" and following
the instructions there. Or you may be able to use this
HP Patch Server: http://support.mayfield.hp.com/patches/html/patches.html
HP Support Line: http://support.mayfield.hp.com
Please do not ask FSF for further support on this. If you have any
trouble obtaining the patch, contact HP Software Support.
If your buffer fills up with nulls (^@) at some point, it could well
be that problem. That problem does not happen when people use GCC
to compile Emacs. On the other hand, the HP compiler version 9.34
was reported to work for the 19.26 pretest. 9.65 was also reported to work.
If you turn on the DSUSP character (delayed suspend),
Emacs 19.26 does not know how to turn it off on HPUX.
You need to turn it off manually.
If you are running HP/UX release 8.0 or later, you need the optional
"C/ANSI C" software in order to build Emacs (older releases of HP/UX
do not require any special software). If the file "/etc/filesets/C"
exists on your machine, you have this software, otherwise you do not.
IBM RS/6000 (rs6000-ibm-aix*)
Emacs 19.26 is believed to work; its pretest was tested.
Compiling with the system's `cc' and CFLAGS containing `-O5' might
fail because libXbsd isn't found. This is a compiler bug;
re-configure Emacs so that it isn't compiled with `-O5'.
On AIX 4.3.x and 4.4, compiling with /bin/c89 fails because it
treats certain warnings as errors. Use `cc' instead.
At last report, Emacs didn't run well on terminals. Informed
persons say that the tty VMIN and VTIME settings have been
corrupted; if you have a fix, please send it to us.
Compiling with -O using the IBM compiler has been known
to make Emacs work incorrectly. It's reported that on
AIX 3.2.5 with an IBM compiler earlier than 1.03.00.14,
cc -O fails for some files. You need to install any
PTF containing APAR #IX42810 to bring the compiler to
the 1.03.00.14 level to allow optimized compiles.
There are reports that IBM compiler versions earlier than 1.03.00.02
fail even without -O. However, another report said that compiler
version 1.02.01.00 did work, on AIX 3.2.4, with Emacs 19.31.
As of 19.11, if you strip the Emacs executable, it ceases to work.
If anyone can fix the above problems, or confirm that they don't happen
with certain versions of various programs, we would appreciate it.
IBM System/390 running GNU/Linux (s390-*-linux-gnu)
As of Emacs 21.2, a 31-bit only version is supported on this
Intel 386 (i386-*-freebsd, i386-*-linux-gnu,
i386-*-sysv4, i386-*-sysv4.2, i386-*-cygwin,
i386... can be replaced with i486... or i586...)
In the above configurations, * means that the manufacturer's name
you specify does not matter, and you can use any name you like
(but it should not contain any dashes or stars).
Use i386-*-linux-gnu for GNU/Linux systems; Emacs runs as of version 19.26.
Use i386-*-cygwin for Cygwin; Emacs builds as of version 22.1, in both X11
and non-X11 modes. (The Cygwin site has source and binaries for 21.2.)
Use i386-intsys-sysv for Integrated Solutions 386 machines.
It may also be correct for Microport systems.
On GNU/Linux systems, Emacs 19.23 was said to work properly with libc
version 4.5.21, but not with 4.5.19. If your system uses QMAGIC
for the executable format, you must edit config.h to define LINUX_QMAGIC.
On GNU/Linux, configure may fail to put these definitions in config.h:
To work around the problem, add those definitions by hand.
It is possible that this problem happens only with X11R6.
Newer system versions have fixed it.
The 19.26 pretest was reported to work on SVR4.3 and on Freebsd.
19.29 is reported to crash when using Motif on Solaris 2.5.
The reasons are not yet known.
For System V release 4, use i386-*-sysv4.
For System V release 4.2, use i386-*-sysv4.2.
If you are using SCO Unix, see notes at end under SCO.
On NetBSD and FreeBSD, at one time, it was necessary to use
GNU make, not the system's make. Assuming it's installed as gmake,
do `gmake install MAKE=gmake'. However, more recently it is
reported that using the system Make on NetBSD 1.3.1 works ok.
If you are using System V release 4.2, you may find that `cc -E'
puts spurious spaces in `src/xmakefile'. If that happens,
specify CPP=/lib/cpp as an option when you run make.
There is no problem if you compile with GCC.
Note that use of Linux with GCC 2.4 and the DLL 4.4 libraries
requires the experimental "net 2" network patches (no relation to
Berkeley Net 2). There is a report that (some version of) Linux
requires including `/usr/src/linux/include/linux' in buffer.c
but no coherent explanation of why that might be so. If it is so,
in current versions of Linux, something else should probably be changed.
Some versions have sys/sioctl.h, and require it in sysdep.c.
But some versions do not have sys/sioctl.h.
For a given version of the system, this may depend on whether you have
X Windows or TCP/IP. Define or undefine NO_SIOCTL_H in config.h
according to whether you have the file.
Likewise, some versions have been known to need sys/ttold.h, sys/stream.h,
and sys/ptem.h included in sysdep.c. If your system has these files,
try defining NEED_PTEM_H in config.h if you have trouble without it.
You may find that adding -I/usr/X/include or -I/usr/netinclude or both
to CFLAGS avoids compilation errors on certain systems.
Some versions convince sysdep.c to try to use `struct tchars'
but define `struct tc' instead; add `#define tchars tc'
to config.h to solve this problem.
Iris 4D (mips-sgi-irix6.*)
Emacs 21.3 is reported to work on IRIX 6.5.x.
You can build a 64-bit executable (with larger maximum buffer size)
on Irix 6.5 by specifying the 64-bit ABI using the `-64' compiler
flag or otherwise (see cc(1)). This may work on earlier Irix 6
systems if you edit src/s/irix6-0.h following irix6-5.h.
If compiling with GCC on Irix 6 yields an error "conflicting types
for `initstate'", install GCC 2.95 or a newer version, and this
problem should go away. It is possible that this problem results
from upgrading the operating system without reinstalling GCC; so you
could also try reinstalling the same version of GCC, and telling us
whether that fixes the problem.
NCR Intel system (i386-ncr-sysv4.2)
This system works in 19.31, but if you don't link it with GNU ld,
you may need to set LD_RUN_PATH at link time to specify where
to find the X libraries.
Prime EXL (i386-prime-sysv)
Minor changes merged in 19.1.
Siemens Nixdorf RM600 and RM400 (mips-siemens-sysv4)
Changes merged in 19.29. The version configured with
`--with-x' works without any modifications, but `--with-x-toolkit'
works only if the Athena library and the Toolkit library are linked
statically. For this, edit `src/Makefile' after the `configure' run
and modify the lines with `-lXaw' and `-lXt' as follows:
LIBXT= $(LIBW) -lXmu /usr/lib/libXt.a $(LIBXTR6) -lXext
In addition, `--with-x-toolkit=motif' works only
if the Motif library and the Toolkit library are linked statically.
To do this, edit `src/Makefile' after the `configure' run
and modify the lines with `-lXm' and `-lXt' as follows:
LIBW= /usr/lib/libXm.a /usr/ccs/lib/libgen.a
LIBXT= $(LIBW) -lXmu /usr/lib/libXt.a $(LIBXTR6) -lXext
Sun 4 (sparc), Sun 386 (sparc-sun-solaris2.*,
To build a 32-bit Emacs (i.e. if you are having any sort of problem
bootstrapping a 64-bit version), you can use the Sun Studio compiler
and configure Emacs with:
env CC="cc -xarch=v7" CFLAGS='' ./configure # on SPARC systems
env CC="cc -xarch=386" CFLAGS='' ./configure # on x86 systems
On Solaris 2.10, it is also possible to use /usr/sfw/bin/gcc to build
a 32-bit version of Emacs. Just make sure you point ./configure to
the right compiler:
env CC='/usr/sfw/bin/gcc -m32' ./configure
To build a 64-bit Emacs (with larger maximum buffer size and
including large file support) on a Solaris system which supports
64-bit executables, use the Sun compiler, configuring something like
this (see the cc documentation for information on 64-bit
env CC="cc -xarch=v9" CFLAGS='' ./configure # on SPARC systems
env CC="cc -xarch=amd64" CFLAGS='' ./configure # on x86 systems
As of version 2.95, GCC doesn't support the 64-bit ABI properly, but
later releases may.
Some versions of Solaris 8 have a bug in their XIM (X Input Method)
implementation which causes Emacs to dump core when one of several
frames is closed. To avoid this, either install patch 108773-12
(for Sparc) or 108874-12 (for x86), or configure Emacs with the
`--with-xim=no' switch (you can use Leim input methods instead).
On Solaris 2.7, building Emacs with WorkShop Compilers 5.0 98/12/15
C 5.0 failed, apparently with non-default CFLAGS, most probably due to
compiler bugs. Using Sun Solaris 2.7 Sun WorkShop 6 update 1 C
release was reported to work without problems. It worked OK on
another system with Solaris 8 using apparently the same 5.0 compiler
and the default CFLAGS.
Emacs 21.1 and 21.2 built with Sun's ProWorks PC3.0.1 compiler on
Intel/Solaris 8 was reported to abort and dump core during startup.
Using GCC or a newer SUN compiler (Sun WokShop 6 update 2 C 5.3
2001/05/15) solves the problem.
Emacs 20.5 and later work on SPARC GNU/Linux with the 32-bit ABI.
As of release 2.95, GCC doesn't work properly with the 64-bit ABI
(applicable on UltraSPARC), but that isn't the default mode.
Emacs 20.3 fails to build on Solaris 2.5 if you use GCC 22.214.171.124.
Installing GCC 2.8 fixes the problem.
19.32 works on Solaris 2.4 and 2.5. On Solaris 2.5
you may need one of these patches to prevent Emacs from crashing
when it starts up:
103093-03: [README] SunOS 5.5: kernel patch (2140557 bytes)
102832-01: [README] OpenWindows 3.5: Xview Jumbo Patch (4181613 bytes)
103242-04: [README] SunOS 5.5: linker patch (595363 bytes)
There are reports that using SunSoft cc with -xO4 -xdepend produces
bad code for some part of Emacs.
Some people report that Emacs crashes immediately on startup when
used with a non-X terminal, but we think this is due to compiling
with GCC and failing to use GCC's "fixed" system header files.
Some Sun versions of X windows use the clipboard, not the selections,
for transferring text between clients. The Cut, Paste and Copy items
in the menu bar Edit menu work with the clipboard.
A user reported irreproducible segmentation faults when using 19.29
on Solaris 2.3 and 2.4 after compiling it with the Sun compiler.
The problem went away when GCC 2.7.0 was used instead. We do not know
whether anything in Emacs is partly to blame for this.
If you compile with Sun's ANSI compiler acc, you need additional options
when linking temacs, such as
/usr/lang/SC2.0.1/values-Xt.o -L/usr/lang/SC2.0.1/cg87 -L/usr/lang/SC2.0.1
(those should be added just before the libraries) and you need to
add -lansi just before -lc. The precise file names depend on the
compiler version, so we cannot easily arrange to supply them.
On Solaris 2, you need to install patch 100947-02 to fix a system bug.
Presumably this patch comes from Sun. You must alter the definition of
LD_SWITCH_SYSTEM if your X11 libraries are not in /usr/openwin/lib.
You must make sure that /usr/ucblib is not in your LD_LIBRARY_PATH.
On Solaris, do not use /usr/ucb/cc. Use /opt/SUNWspro/bin/cc. Make
sure that /usr/ccs/bin and /opt/SUNWspro/bin are in your PATH before
/usr/ucb. (Most free software packages have the same requirement on
Solaris.) With this compiler, use `/opt/SUNWspro/bin/cc -E' as the
preprocessor. If this inserts extra whitespace into its output (see
the PROBLEMS file) then add the option `-Xs'.
If you have trouble using open-network-stream, get the distribution
of `bind' (the BSD name-server), build libresolv.a, and link Emacs
with -lresolv, by copying the #definition of LIBS_SYSTEM in
src/s/sunos4-1.h to src/config.h. This problem is due to obsolete
software in the nonshared standard library.
Note that Emacs on a Sun is not really as big as it looks.
As dumped, it includes around 200k of zeros between the
original text section and the original data section
(now remapped as part of the text). These are never
Emacs 23.0.60 was reported to work on GNU/Linux (October 2008).
Tested on a little-endian sh4 system (cpu type SH7751R) running
Gentoo Linux 2008.0.
Tadpole 68K (m68k-tadpole-sysv)
Changes merged in 19.1.
You may need to edit Makefile to change the variables LIBDIR and
BINDIR from /usr/local to /usr/contrib.
To give movemail access to /usr/mail, you may need to execute
chmod 2755 etc/movemail; chgrp mail etc/movemail
Vaxen running Berkeley Unix (vax-dec-bsd4.1, vax-dec-bsd4.2, vax-dec-bsd4.3)
Here are notes about some of the systems supported:
Linux (actually GNU/Linux)
Most of the complete systems which use the Linux kernel are close
enough to the GNU system to be considered variant GNU systems. We
call them "Linux-based GNU systems," or GNU/Linux for short.
It is not coincidence that many of the other components used with
Linux--including GNU Emacs--were developed specifically for the GNU
project. The GNU project was launched in 1984 to develop a free
complete Unix-like operating system. To reach this goal, we had to
develop whatever system components were not available as freely
redistributable software from some other source.
The GNU project wants users of GNU/Linux systems to be aware of how
these systems relate to the GNU project, because that will help
spread the GNU idea that software should be free--and thus encourage
people to write more free software. See the file LINUX-GNU in this
directory for more explanation.
See under "Intel 386".
For installation on MSDOS, see the file INSTALL (search for `MSDOG',
near the end of the file). See the "MS-DOS" chapter of the manual
for information about using Emacs on MSDOS.
System V rel 4.0.3 and 4.0.4 (usg5.4)
Supported, including shared libraries for ELF, but ptys do not work
because TIOCGPGRP fails to work on ptys (but Dell 2.2 seems to have
fixed this). This failure is probably due to a misunderstanding of
the consequences of the POSIX spec: many system designers mistakenly
think that POSIX requires this feature to fail. This is untrue;
ptys are an extension, and POSIX says that extensions *when used*
may change the action of standard facilities in any fashion.
If you get compilation errors about wrong number of
arguments to getpgrp, define GETPGRP_NO_ARG.
The standard C preprocessor may generate xmakefile incorrectly. However,
/lib/cpp will work, so use `make CPP=/lib/cpp'. Standard cpp
seems to work OK under Dell 2.2.
Some versions 3 and earlier of V.4, on the Intel 386 and 860, had
problems in the X11 libraries. These prevent Emacs from working
with X. You can use Emacs with X provided your copy of X is based
on X11 release 4 or newer, or is Dell's 2.2 (which is a 4.0.3).
Unfortunately, the only way you can tell whether your X11 library is
new enough is to try compiling Emacs to use X. If emacs runs, your
X11 library is new enough.
In this context, GSV4 and GSV4i are alternate names for X11R4.
OL2.* is X11R3 based. OL3 is in between X11R3 and X11R4, and may or
may not work, depending on who made the Unix system. If the library
libXol is part of the X distribution, then you have X11R3 and Emacs
won't work with X.
Most versions of V.4 support sockets. If `/usr/lib/libsocket.so'
exists, your system supports them. If yours does not, you must add
#undef HAVE_SOCKETS in config.h, after the inclusion of s-usg5-4.h.
(Any system that supports Internet should implement sockets.)
For installation on all versions of the MS-Windows platform, see the
No special procedures should be needed to build a 64-bit Emacs. To
build a 32-bit Emacs, first ensure that the necessary 32-bit system
libraries and include files are installed. Then use:
env CC="gcc -m32" ./configure --build=i386-linux-gnu \
(using the location of the 32-bit X libraries on your system).
Support for the following obsolete platforms was removed in Emacs 23.1
(the names in parentheses state the files in src/ that were removed):
Apollo SR10.x (unexapollo.c)
Convex (unexconvex.c and m/convex.c)
Xenix (unexenix.c and s/xenix.h)
Iris (unexmips.c m/iris4d.h m/irist.h s/iris3-5.h s/iris3-6.h)
Siemens machines running Sinix (unexsni.c)
Harris CXUX (s/cxux*)
ESIX, a variant of v.5.3 for the 386 (s/esix*)
Interactive (ISC) Unix (s/isc*)
Sony News (s/newsos*)
RTU 3.0, ucb universe (s/rtu.h)
UniSoft's UniPlus 5.2 (s/uniplus.h)
AT&T UNIX PC model 7300 (m/7300.h)
Altos 3068 Unix System V Release 2 (m/altos.h)
AT&T 3b (m/att3b.h)
Berkeley 4.1 (m/bsd4.1.h)
Berkeley 4.2 (m/bsd4.2.h)
Berkeley 4.3 (m/bsd4.3.h)
convergent S series (m/cnvrgnt.h)
Motorola System V/88 machines (m/delta88k.h)
Bull DPX/2 range (m/dpx2.h)
Dual machines using unisoft port (m/dual.h)
Elxsi machine (running enix) (m/elxsi.h)
Fujitsu F301 machine (m/f301.h)
ibm ps/2 aix386 (m/ibmps2-aix.h)
ISI 68000's (m/is*)
Masscomp 5000 series running RTU, ucb universe (m/masscomp.h)
Megatest 68000's (m/mega68.h)
Whitechapel Computer Works MG1 (ns16000 based) (m/mg1.h)
Harris Night Hawk Series 1200 and Series 3000 (m/nh3000.h m/nh4000.h)
National Semiconductor 32000, running Genix (m/ns32000.h)
TI Nu machines using system V (m/nu.h)
HLH Orion (m/orion.h m/orion105.h)
Paragon i860 (m/paragon.h)
PFU A-series (m/pfa50.h)
Plexus running System V.2 (m/plexus.h)
Bull SPS-7 (m/sps7.h)
Hitachi SR2001/SR2201 (m/sr2k.h)
Sun 1 (m/sun1.h)
Sun 2 (m/sun2.h)
SEQUENT SYMMETRY (m/symmetry.h)
Tadpole 68k machines (m/tad68k.h)
Tektronix* (m/tek4300.h m/tekxd88.h)
NCR Tower 32 running System V.2 (m/tower32.h)
NCR Tower 32 running System V.3 (m/tower32v3.h)
U-station (Nihon Unisys, SS5E; Sumitomo Denkoh, U-Station E30) (m/ustation.h)
Honeywell XPS100 running UNIX System V.2 (m/xps100.h)
Data General's DG/UX (s/dgux*)
Irix before version 6
SCO 3.2v4 (s/sco4.h)
SCO 3.2v5 (s/sco5.h)
Sun's 386-based RoadRunner (m/sun386.h)
Sun3 machines (m/sun3*)
Integrated Solutions 386 machine (m/is386.h)
Integrated Solutions `Optimum V' -- m68k-isi-bsd4.2 or -bsd4.3
Harris Power PC (powerpc-harris-powerunix)
Hewlett-Packard 9000 series 200 or 300 on some platforms -- m68k-hp-bsd or
m68k-hp-hpux; note m68k-*-netbsd* still works
IBM PS/2 -- i386-ibm-aix1.1 or i386-ibm-aix1.2
GEC 63 -- local-gec63-usg5.2
Tandem Integrity S2 -- mips-tandem-sysv
System V rel 0 -- usg5.0
System V rel 2 -- usg5.2
System V rel 2.2 -- usg5.2.2
System V rel 3 -- usg5.3
Ultrix -- bsd4.3
fill-prefix: " "
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/>.