gpl

Can we use extJS in a business application for free ? Can you use extJS for an business application for free? Well, you can if any of the following statements are true. You open-source your app under GPL v3. The app is only for internal use in your company. The app is used by your company to provide a service and not directly distributed to the customer e.g. most web pages ( according to GPL this is interpreted as an internal use of the app - if Ext team would have chosen to prohibit that, then they would have used Affero GPL, which directly forbids that). It's under the GPL and also available

Could you please suggest which are the well-known "open source" licenses allowing me to use libraries under these licenses in proprietary webservice (accessible in Internet to the public), which I am not going to make opensource. I am ok to state somewhere that I am using the library, and I am ok with sharing the changes I make in the library. I guess GPL ones does not work here, as I am not going to release whole product as GPL, what are other options? That's what I've found about Meebo & libpurple: I have a licensing question. Do you guys feel that Meebo's use of libpurple is acceptable

目前国内开源项目正在逐渐升温，中国也开始有不少优秀的开源项目突显出来。在大家摩拳擦掌准备加入开源大军时，也要知道这个圈子里的规则。技术人员不能只是研究技术，任何圈子都有规则，要知道了才能玩得好。前段时间有件关于开源软件的事情挺热闹的，关于国内一个开发者把自己作品开源出来被别的公司的人拿去包装成自己的产品高价卖出去。大部分做开源软件的开发者都不太怎么关注版权这些，具体微博如下： hoowa_sun ： 做开源后，发现大部分都被别人拿去学习，然后copy，然后自己闭源卖出去。这里不缺乏大公司，有一家公司拿我的开源系统修改后卖给了一个国内的运营商，卖的还非常贵至少几十万一套。所以我郑重的建议大家，做软件还是要英文版开源，中文版封闭不要开源。 在国内大家习惯了使用盗版、破解，看到这种免费的软件也觉得是理所当然的拿来主义，甚至直接封装到自己的商业组件卖出去。如果你正在这样做，马上停下来研究一下使用的这些开源组件的许可协议，不然某一天你会意外收到一封法院的传票。如果你在开发或者准备开发开源软件，但尚对开源许可协议不了解，也看下这篇文章，选择一种开源许可协议保护你的开源软件。 常见的开源许可协议有：GPL、LGPL、BSD、Apache Licence vesion 2.0、MIT。这些协议有什么区别呢？ GPL ，全称 GNU General Public License。它的主要内容为

Just been looking at the threading building blocks, and as their license, they say it's the GPLv2 with the runtime exception . On the Intel page itself they say that the commercial license is the right one if you need commercial support. So what's the deal if I'm doing a commercial, closed source application which uses the TBB, but I don't need commercial support? Can I still use the open source version, or is this a case where I have to buy the commercial one? After all, I assumed that I can use the libstdc++ in a commercial application without restrictions (i.e. link against it). I believe

I'm using Python and Qt 4.4 and I have to print some pages. Initially I thought I'd use HTML with CSS to produce those pages. But HTML has some limitations. Now the question is: is there anything that's better than HTML but just (or almost) as easy to use? Additionally, it should be GPL-compatible. Edit: kdgregory & Mark G: The most obvious limitation is that I can't specify the printer margins. There is another problem: How do I add page numbers? Jeremy French: One thing I have to print is a list of all the products someone ordered which can spread over a few pages. max I have been fighting