or open source project with an incompatible license is entitled to
request a compatible license and if they do not receive one they
are entitled to treat the "interface" - i.e. the header files and
effectively the entire library - as not being subject to copyright
law!
Can you tell me what part of the directive actually says that, or
which you
are basing this conclusion on, please?
Article 2: Protection in accordance with this Directive shall apply
to the expression in any form of a computer program. Ideas and
principles which underlie any element of a computer program,
including those which underlie its interfaces, are not protected by
copyright under this Directive.