112
En
Appendix
14
4. You may copy and distribute the Library (or a portion or derivative of it, under Section 2) in object code or executable form under
the terms of Sections 1 and 2 above provided that you accompany it with the complete corresponding machine-readable source
code, which must be distributed under the terms of Sections 1 and 2 above on a medium customarily used for software
interchange.
If distribution of object code is made by offering access to copy from a designated place, then offering equivalent access to
copy the source code from the same place satisfies the requirement to distribute the source code, even though third parties
are not compelled to copy the source along with the object code.
5. A program that contains no derivative of any portion of the Library, but is designed to work with the Library by being compiled
or linked with it, is called a “work that uses the Library”. Such a work, in isolation, is not a derivative work of the Library, and
therefore falls outside the scope of this License. However, linking a “work that uses the Library” with the Library creates an
executable that is a derivative of the Library (because it contains portions of the Library), rather than a “work that uses the
library”. The executable is therefore covered by this License. Section 6 states terms for distribution of such executables.
When a “work that uses the Library” uses material from a header file that is part of the Library, the object code for the work may
be a derivative work of the Library even though the source code is not. Whether this is true is especially significant if the work
can be linked without the Library, or if the work is itself a library. The threshold for this to be true is not precisely defined by law.
If such an object file uses only numerical parameters, data structure layouts and accessors, and small macros and small inline
functions (ten lines or less in length), then the use of the object file is unrestricted, regardless of whether it is legally a derivative
work. (Executables containing this object code plus portions of the Library will still fall under Section 6.)
Otherwise, if the work is a derivative of the Library, you may distribute the object code for the work under the terms of Section
6. Any executables containing that work also fall under Section 6, whether or not they are linked directly with the Library itself.
6. As an exception to the Sections above, you may also combine or link a “work that uses the Library” with the Library to produce
a work containing portions of the Library, and distribute that work under terms of your choice, provided that the terms permit
modification of the work for the customer’s own use and reverse engineering for debugging such modifications.
You must give prominent notice with each copy of the work that the Library is used in it and that the Library and its use are
covered by this License. You must supply a copy of this License. If the work during execution displays copyright notices, you
must include the copyright notice for the Library among them, as well as a reference directing the user to the copy of this
License.
Also, you must do one of these things:
a) Accompany the work with the complete corresponding machine-readable source code for the Library including whatever
changes were used in the work (which must be distributed under Sections 1 and 2 above); and, if the work is an executable
linked with the Library, with the complete machine-readable “work that uses the Library”, as object code and/or source
code, so that the user can modify the Library and then relink to produce a modified executable containing the modified
Library. (It is understood that the user who changes the contents of definitions files in the Library will not necessarily be
able to recompile the application to use the modified definitions.)
b) Use a suitable shared library mechanism for linking with the Library. A suitable mechanism is one that (1) uses at run time
a copy of the library already present on the user’s computer system, rather than copying library functions into the
executable, and (2) will operate properly with a modified version of the library, if the user installs one, as long as the
modified version is interface-compatible with the version that the work was made with.
c) Accompany the work with a written offer, valid for at least three years, to give the same user the materials specified in
Subsection 6a, above, for a charge no more than the cost of performing this distribution.
d) If distribution of the work is made by offering access to copy from a designated place, offer equivalent access to copy the
above specified materials from the same place.
e) Verify that the user has already received a copy of these materials or that you have already sent this user a copy.
For an executable, the required form of the “work that uses the Library” must include any data and utility programs needed for
reproducing the executable from it. However, as a special exception, the materials to be distributed need not include anything
that is normally distributed (in either source or binary form) with the major components (compiler, kernel, and so on) of the
operating system on which the executable runs, unless that component itself accompanies the executable.
It may happen that this requirement contradicts the license restrictions of other proprietary libraries that do not normally
accompany the operating system. Such a contradiction means you cannot use both them and the Library together in an
executable that you distribute.
7. You may place library facilities that are a work based on the Library side-by-side in a single library together with other library
facilities not covered by this License, and distribute such a combined library, provided that the separate distribution of the work
based on the Library and of the other library facilities is otherwise permitted, and provided that you do these two things:
a) Accompany the combined library with a copy of the same work based on the Library, uncombined with any other library
facilities. This must be distributed under the terms of the Sections above.
b) Give prominent notice with the combined library of the fact that part of it is a work based on the Library, and explaining
where to find the accompanying uncombined form of the same work.
8. You may not copy, modify, sublicense, link with, or distribute the Library except as expressly provided under this License. Any
attempt otherwise to copy, modify, sublicense, link with, or distribute the Library is void, and will automatically terminate your
rights under this License. However, parties who have received copies, or rights, from you under this License will not have their
licenses terminated so long as such parties remain in full compliance.
9. You are not required to accept this License, since you have not signed it. However, nothing else grants you permission to modify
or distribute the Library or its derivative works. These actions are prohibited by law if you do not accept this License. Therefore,
by modifying or distributing the Library (or any work based on the Library), you indicate your acceptance of this License to do
so, and all its terms and conditions for copying, distributing or modifying the Library or works based on it.
PDP_PRO1140HD.book Page 112 Monday, June 5, 2006 5:22 PM