Z:gnu-www-ja-gpl-faq--a0337b-If people were to distribute G/en

If people were to distribute GPL-covered software calling it &ldquo;part of&rdquo; a system that users know is partly proprietary, users might be uncertain of their rights regarding the GPL-covered software. But if they know that what they have received is a free program plus another program, side by side, their rights will be clear.