您是否需要为“待售"的GNU GPL软件付费? [英] Do you have to pay for GNU GPL software that is "for sale"?

问题描述

我已经在网站上看到了一些要出售的软件(准确地说是Joomla组件).该网站称它已获得GNU GPL2的许可.但是，它也说您需要为使用该软件的每个站点付费(有大量折扣).

I've seen some software (a Joomla component, to be exact) for sale on a web site. The web site says it is licensed under the GNU GPL2. However it also says you need to pay for every site you use the software on (with bulk discounts).

我知道按照GPL出售软件是完全可以接受的，但是许可证意味着必须免费分发源代码.

I know it's perfectly acceptable to sell software under the GPL, however the license implies that the source code must be distributed at no cost.

那么这是对GPL的合法使用，还是违反了许可证?免费下载该软件(例如从Bittorrent中下载)并按我的意愿使用它合法吗?

So is this a legitimate use of the GPL, or is it violating the license? Is it legal to download the software for free (say, from Bittorrent) and use it as I wish?

推荐答案

这里是来自GNU网站的常见问题解答.我认为它回答了您的问题:

Here is a FAQ from the GNU site. I think it answers your question:

GPL是否允许我出售副本 该计划的钱?

Does the GPL allow me to sell copies of the program for money?

是的，GPL允许每个人都这样做.出售副本的权利是其中的一部分 自由软件的定义. 除了一种特殊情况 对你能买到的价格没有限制 收费. (唯一的例外是 要求提供的书面要约 必须随附的源代码 仅限二进制版本.)

Yes, the GPL allows everyone to do this. The right to sell copies is part of the definition of free software. Except in one special situation, there is no limit on what price you can charge. (The one exception is the required written offer to provide source code that must accompany binary-only release.)

http://www.gnu.org/licenses/gpl-faq. html#DoesTheGPLAllowMoney

更多:

如果我有偿分发GPL软件，我是否也必须制作该软件 无需公众即可获得 收费?

If I distribute GPL'd software for a fee, am I required to also make it available to the public without a charge?

不.但是，如果有人支付您的费用 并得到一份副本，GPL给了他们 将其释放给 公开，收费或不收费.为了 例如，有人可以支付您的费用， 然后将她的副本放在网站上 面向大众.

No. However, if someone pays your fee and gets a copy, the GPL gives them the freedom to release it to the public, with or without a fee. For example, someone could pay your fee, and then put her copy on a web site for the general public.

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