Okay, I'm really puzzled by this. The source for gcc.1, gcc/doc/invoke.texi, begins thus:
> @c Copyright (C) 1988, 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, > @c 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 > @c Free Software Foundation, Inc. > @c This is part of the GCC manual. > @c For copying conditions, see the file gcc.texi. > > @ignore > @c man begin INCLUDE > @include gcc-vers.texi > @c man end > > @c man begin COPYRIGHT > Copyright @copyright{} 1988, 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998, > 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 > Free Software Foundation, Inc. > > Permission is granted to copy, distribute and/or modify this document > under the terms of the GNU Free Documentation License, Version 1.3 or > any later version published by the Free Software Foundation; with the > Invariant Sections being ``GNU General Public License'' and ``Funding > Free Software'', the Front-Cover texts being (a) (see below), and with > the Back-Cover Texts being (b) (see below). A copy of the license is > included in the gfdl(7) man page. > > (a) The FSF's Front-Cover Text is: > > A GNU Manual > > (b) The FSF's Back-Cover Text is: > > You have freedom to copy and modify this GNU Manual, like GNU > software. Copies published by the Free Software Foundation raise > funds for GNU development. > @c man end But the @copying block in gcc.texi says: > @copying > Copyright @copyright{} 1988, 1989, 1992, 1993, 1994, 1995, 1996, 1997, > 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, > 2010 Free Software Foundation, Inc. > Permission is granted to copy, distribute and/or modify this document > under the terms of the GNU Free Documentation License, Version 1.3 or > any later version published by the Free Software Foundation; with the > Invariant Sections being ``Funding Free Software'', the Front-Cover > Texts being (a) (see below), and with the Back-Cover Texts being (b) > (see below). A copy of the license is included in the section entitled > ``GNU Free Documentation License''. > > (a) The FSF's Front-Cover Text is: > > A GNU Manual > > (b) The FSF's Back-Cover Text is: > > You have freedom to copy and modify this GNU Manual, like GNU > software. Copies published by the Free Software Foundation raise > funds for GNU development. > @end copying ... Notice how the one in invoke.texi has an additional invariant section? What's up with this?