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To 'modify' a work means to copy from or adapt all or part of the work in a fashion
requiring copyright permission, other than the making of an exact copy. The resulting
work is called a 'modified version' of the earlier work or a work 'based on' the earlier
work.
A 'covered work' means either the unmodified Program or a work based on the Program.
To 'propagate' a work means to do anything with it that, without permission, would
make you directly or secondarily liable for infringement under applicable copyright law,
except executing it on a computer or modifying a private copy. Propagation includes
copying, distribution (with or without modification), making available to the public, and
in some countries other activities as well.
To 'convey' a work means any kind of propagation that enables other parties to make
or receive copies. Mere interaction with a user through a computer network, with no
transfer of a copy, is not conveying.
An interactive user interface displays 'Appropriate Legal Notices' to the extent that it
includes a convenient and prominently visible feature that (1) displays an appropriate
copyright notice, and (2) tells the user that there is no warranty for the work (except
to the extent that warranties are provided), that licensees may convey the work under
this License, and how to view a copy of this License. If the interface presents a list of
user commands or options, such as a menu, a prominent item in the list meets this
criterion.
1. Source Code.
The 'source code' for a work means the preferred form of the work for making
modifications to it. 'Object code' means any non-source form of a work.
'Standard Interface' means an interface that either is an official standard defined by a
recognized standards body, or, in the case of interfaces specified for a particular
programming language, one that is widely used among developers working in that
language.
The 'System Libraries' of an executable work include anything, other than the work as a
whole, that:
a) is included in the normal form of packaging a Major Component, but which is not
part of that Major Component, and
