82
_ Annexe
Annexe
6.
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 fi le 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 signifi cant 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 defi ned by law.
If such an object fi le 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 fi le 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.
7.
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 modifi cation of the work
for the customer’s own use and reverse engineering for debugging such modifi cations.
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:
1)
Accompany the work wi th the complet e 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 modifi ed executable containing the modifi ed Library. (It is understood that the
user who changes the contents of defi nitions fi les in the Library will not necessarily be
able to recompile the application to use the modifi ed defi nitions.)
2)
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 modifi ed version of the library, if the user installs one, as long
as the modifi ed version is interfacecompatible with the version that the work was made
with.
3)
Accompany the work with a written off er, valid for at least three years, to give the same
user the materials specifi ed in Subsection 6a, above, for a charge no more than the cost
of performing this distribution.
4)
If distribution of the work is made by off ering access to copy from a designated place,
off er equivalent access to copy the above specifi ed materials from the same place.
5)
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
DV455-02836F-02_CFR_20120626.indd Sec7:82
DV455-02836F-02_CFR_20120626.indd Sec7:82
2012-06-26
12:17:32
2012-06-26
12:17:32
