Table des Matières
Publicité
of this License along with the Library. You may charge a fee for the physical act of transferring a copy, and you may at
your option offer warranty protection in exchange for a fee.
2. You may modify your copy or copies of the Library or any portion of it, thus forming a work based on the Library, and
copy and distribute such modifications or work under the terms of Section 1 above, provided that you also meet all of
these conditions:
a) The modified work must itself be a software library.
b) You must cause the files modified to carry prominent notices stating that you changed the files and the date of any
change.
c) You must cause the whole of the work to be licensed at no charge to all third parties under the terms of this License.
d) If a facility in the modified Library refers to a function or a table of data to be supplied by an application program that
uses the facility, other than as an argument passed when the facility is invoked, then you must make a good faith effort to
ensure that, in the event an application does not supply such function or table, the facility still operates, and performs
whatever part of its purpose remains meaningful. (For example, a function in a library to compute square roots has a
purpose that is entirely well-defined independent of the application. Therefore, Subsection 2d requires that any
application-supplied function or table used by this function must be optional: if the application does not supply it, the
square root function must still compute square roots.) These requirements apply to the modified work as a whole. If
identifiable sections of that work are not derived from the Library, and can be reasonably considered independent and
separate works in themselves, then this License, and its terms, do not apply to those sections when you distribute them
as separate works. But when you distribute the same sections as part of a whole which is a work based on the Library,
the distribution of the whole must be on the terms of this License, whose permissions for other licensees extend to the
entire whole, and thus to each and every part regardless of who wrote it. Thus, it is not the intent of this section to claim
rights or contest your rights to work written entirely by you; rather, the intent is to exercise the right to control the
distribution of derivative or collective works based on the Library. In addition, mere aggregation of another work not
based on the Library with the Library (or with a work based on the Library) on a volume of a storage or distribution
medium does not bring the other work under the scope of this License.
3. You may opt to apply the terms of the ordinary GNU General Public License instead of this License to a given copy of
the Library. To do this, you must alter all the notices that refer to this License, so that they refer to the ordinary GNU
General Public License, version 2, instead of to this License. (If a newer version than version 2 of the ordinary GNU
General Public License has appeared, then you can specify that version instead if you wish.) Do not make any other
change in these notices. Once this change is made in a given copy, it is irreversible for that copy, so the ordinary GNU
General Public License applies to all subsequent copies and derivative works made from that copy. This option is useful
when you wish to copy part of the code of the Library into a program that is not a library.
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
206
Publicité
Table des Matières
