ZyXEL Communications Unified Security Gateway ZyWALL 300 User Manual page 731

Appendix F Open Software Announcements
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.
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ZyWALL USG 300 User's Guide