ZyXEL Communications NXC5200 User Manual page 662

Appendix F Open Software Announcements
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
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NXC5200 User's Guide