ZyXEL Communications ZyWALL USG 300 User Manual page 851

Appendix E Open Software Announcements
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-
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ZyWALL USG 300 User's Guide