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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
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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
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b) Use a suitable shared library mechanism for linking with the Library. A suitable mechanism is one
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that (1) uses at run time a copy of the library already present on the user's computer system, rather
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