Manual clean-ups, and include the PDF in the source distribution.

doc/libffi.texi

@@ -1,7 +1,8 @@
 \input texinfo   @c -*-texinfo-*-
 @c %**start of header
 @setfilename libffi.info
-@settitle libffi
+@include version.texi
+@settitle libffi: the portable foreign function interface library
 @setchapternewpage off
 @c %**end of header
 
@@ -12,32 +13,43 @@
 @syncodeindex pg cp
 @syncodeindex tp cp
 
-@include version.texi
-
 @copying
 
-This manual is for Libffi, a portable foreign-function interface
+This manual is for libffi, a portable foreign function interface
 library.
 
-Copyright @copyright{} 2008, 2010, 2011 Red Hat, Inc.
+Copyright @copyright{} 2008--2019 Anthony Green and Red Hat, Inc.
 
-@quotation
-Permission is granted to copy, distribute and/or modify this document
-under the terms of the GNU General Public License as published by the
-Free Software Foundation; either version 2, or (at your option) any
-later version.  A copy of the license is included in the
-section entitled ``GNU General Public License''.
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+``Software''), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED ``AS IS'', WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
-@end quotation
 @end copying
 
 @dircategory Development
 @direntry
-* libffi: (libffi).             Portable foreign-function interface library.
+* libffi: (libffi).             Portable foreign function interface library.
 @end direntry
 
 @titlepage
-@title Libffi
+@title libffi: a foreign function interface library
+@subtitle For Version @value{VERSION} of libffi
+@author Anthony Green
 @page
 @vskip 0pt plus 1filll
 @insertcopying