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 file `src/libs/snprintf/snprintf.c', written by Mark Martinec

    <[email protected]>.

    Please look into snprintf.c for the copyright message.

    The complete snprintf package together with documentation is available

    from

      http://www.ijs.si/software/snprintf/    .

  . The `grn' preprocessor, written by Barry Roitblat <[email protected]>

    and David Slattengren <[email protected]>.  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 `dehyphn.tex' and `dehypht.tex' (for TeX), which

    can be found at

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

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

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

    See the files themselves for a copyright notice.

  . The file `tmac/hyphenex.det' is identical to the file `dehyphtex.tex',

    which can be found at

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

    See the file itself 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.

---

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