Vagy lehet tiszteségesen is játszani. Miért is született meg a GPL? A tisztességtelen játék miatt:
The concept of copyleft arose when Richard Stallman was working on a Lisp interpreter. Symbolics asked to use the Lisp interpreter, and Stallman agreed to supply them with a public domain version of his work. Symbolics extended and improved the Lisp interpreter, but when Stallman wanted access to the improvements that Symbolics had made to his interpreter, Symbolics refused.
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trey @ gépház