    Copyright 2003-2018 Free Software Foundation, Inc.

    Copying and distribution of this file, with or without modification,
    are permitted in any medium without royalty provided the copyright
    notice and this notice are preserved.

LICENSES
--------

The groff program is a free software project.  It is licensed under the GNU
General Public License (GNU GPL), version 3 or later.

The file COPYING in the top directory of the groff source package contains a
copy of the GPL that was downloaded from the GNU web site
http://www.gnu.org/copyleft/gpl.txt at 3 jan 2009.

All files part of groff are licensed under this version of the GPL (or
licenses which are compatible with the GPL). You are free to choose
version 3 or any subsequent version of the GPL.

The GPL names an address where you can get the actual version by normal
post.  Further information is found in the internet at
http://www.gnu.org/copyleft.

The groff program is a GNU package, and the copyright of all files of the
groff source package which are under the GPL has been assigned to the Free
Sofware Foundation (FSF).  Information on GNU and FSF is found at
http://www.fsf.org/.


Here a list of files which are distributed with groff but which aren't
part of it (this is, they either have a non-GPL license, or the copyright
hasn't been assigned to the FSF).


  Source Files
  ------------

  . The `grn' preprocessor, written by Barry Roitblat <barry@rentonww.com>
    and David Slattengren <slatteng@Xinet.COM>.  These files have been part
    of the original Berkeley ditroff distribution, without AT&T code, and
    are in the public domain.

    The original package can be found at
    http://ftp.cs.wisc.edu/pub/misc/grn.tar.Z    .

      src/preproc/grn/gprint.h
      src/preproc/grn/hdb.cpp
      src/preproc/grn/hgraph.cpp
      src/preproc/grn/hpoint.cpp
      src/preproc/grn/main.cpp

  . The `gxditview' output device.  It is based on X11's `xditview' program
    and thus has the X license.

      src/devices/xditview/DESC.in
      src/devices/xditview/Dvi.c
      src/devices/xditview/Dvi.h
      src/devices/xditview/DviP.h
      src/devices/xditview/FontMap
      src/devices/xditview/GXditview.ad
      src/devices/xditview/Menu.h
      src/devices/xditview/ad2c
      src/devices/xditview/device.c
      src/devices/xditview/device.h
      src/devices/xditview/draw.c
      src/devices/xditview/font.c
      src/devices/xditview/gray1.bm
      src/devices/xditview/gray2.bm
      src/devices/xditview/gray3.bm
      src/devices/xditview/gray4.bm
      src/devices/xditview/gray5.bm
      src/devices/xditview/gray6.bm
      src/devices/xditview/gray7.bm
      src/devices/xditview/gray8.bm
      src/devices/xditview/gxditview.man
      src/devices/xditview/lex.c
      src/devices/xditview/page.c
      src/devices/xditview/parse.c
      src/devices/xditview/xdit.bm
      src/devices/xditview/xdit_mask.bm
      src/devices/xditview/xditview.c

      src/include/DviChar.h
      src/include/XFontName.h

      src/libs/libxutil/DviChar.c
      src/libs/libxutil/XFontName.c


  Macro Packages
  --------------

  . The -mdoc macro set, using the BSD license.

      tmac/doc.tmac
      tmac/doc-old.tmac
      tmac/doc-common
      tmac/doc-ditroff
      tmac/doc-nroff
      tmac/doc-syms
      tmac/groff_mdoc.man

  . The -me macro set, using the BSD license.

      tmac/e.tmac
      tmac/groff_me.man
      doc/meintro.me
      doc/meintro_fr.me
      doc/meref.me


  Hyphenation Patterns
  --------------------

  . The file `tmac/hyphen.us' is identical to the file `hyphen.tex', part of
    the TeX system written by Donald E. Knuth; the master file can be found
    at

      ftp://labrea.stanford.edu/pub/tex/dist/lib/hyphen.tex    .

    It has been renamed for consistency, i.e., to make patterns available
    under the filenames `hyphen.<language>', e.g. `hyphen.de' or
    `hyphen.uk'.

    See the file itself for a copyright notice.

  . The file `tmac/hyphen.fr' contains the same patterns as the file
    `frhyph.tex' (for TeX), which can be found at

      http://dante.ctan.org/CTAN/language/hyphenation/frhyph.tex    .

    The patterns have been converted to a format groff can understand.

    See the file itself for a copyright notice.

  . The file `tmac/hyphen.sv' is identical to the file `svhyph.tex', which
    can be found at

      http://dante.ctan.org/CTAN/language/hyphenation/svhyph.tex    .

    See the file itself for a copyright notice.

  . The files `tmac/hyphen.det' and `tmac/hyphen.den' contain the same
    patterns as the files `dehypht-x-2017-03-31.pat' and
    `dehyphn-x-2017-03-31.pat' (for TeX), respectively, which can be found
    at

      http://ctan.org/tex-archive/language/hyphenation/dehyph-exptl

    The patterns have been converted to latin-1.

    See the files themselves for a copyright notice.

  . The file `tmac/hyphen.cs' contains the same patterns as the file
    `czhyphen.tex' (for TeX), which can be found in the archive

      http://dante.ctan.org/CTAN/macros/cstex/base/csplain.tar.gz    .

    The patterns have been converted to a format groff can understand.

    See the file itself for a copyright notice.

EOF
