Technical data
Chapter 14 207
Copyright Information
Copyright Information
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 accessories, 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
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user to the copy of this License. Also, you must do one of these things:
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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
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