Permission is granted to make and distribute verbatim
copies of this manual provided the copyright notice and this
permission notice are preserved on all copies.
Permission is granted to copy and distribute modified
versions of this manual under the conditions for verbatim
copying, provided also that the entire resulting derived work is
distributed under the terms of a permission notice identical to
Permission is granted to copy and distribute translations
of this manual into another language, under the above conditions
for modified versions.