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There are so many programming language like PHP, Perl, Python, Java, C, C++ and many other. These programming language has some open source license. If i develop application from scratch which is not related the source modification of these languages. Is my application has to be open source license?? There are billions of applications written in these language? All application has be open source? I don't understand that, is there language issue ever existed? I think there should not programming language licensing issue just like spoken language..either i speak in english, french or any other. I can write a book in any language without my book to be open source, is that right???

closed as unclear what you're asking by Robert Harvey, GlenH7, Jimmy Hoffa, user40980, gnat Nov 27 '13 at 3:57

Please clarify your specific problem or add additional details to highlight exactly what you need. As it's currently written, it’s hard to tell exactly what you're asking. See the How to Ask page for help clarifying this question. If this question can be reworded to fit the rules in the help center, please edit the question.

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    You need to reduce your coffee consumption by about 50 percent. As to your question, generally speaking, you can license your applications any way you want, regardless of the compiler/interpreter license (there wouldn't be much point, otherwise). – Robert Harvey Nov 26 '13 at 18:42
  • Of course it could be a point of having a compiler/standard library with a license that doesn't allow for closed source software. Just as there is software distributions out there that contains only open source software (like debian). – iveqy Nov 26 '13 at 19:17
  • Most languages don't have licences. Most implementations of languages do. In many cases (C and C++, for example), there's a license for the language standard document, but that doesn't apply to the language itself. – Keith Thompson Nov 26 '13 at 19:23
  • en.wikipedia.org/wiki/List_of_open-source_programming_languages you can check the wiki, you will find the license for each programming language. For GPL programming language, is my project has to be GPL or not. That is my question? Please try to understand the question. – padam gurung Nov 28 '13 at 16:06
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Of course this depends on the laws in your country. Generally speaking though, you own your sourcecode. However a license on a programming language can make your sourcecode useless on its own. (at least if some part of the programming language is patented and you live in a part of the world with software patents).

However more realistic is that some standard library or the compiler is protected. For example if you write a C-program and link that to glibc and we assume that glibc is under GPL, your program has to be GPL compatible if your release it (note that glibc is under LGPL and not GPL so this doesn't apply).

Generally the licenses of standard libraries and compilers does not force your application to be open source.

What I know, none of the languages your mentioned has any license at all, their compilers do, and a few of them has plenty of compilers...

  • There's a lot of hand-waving, but I don't see much of an answer here. Perhaps if you rewrote your answer to be more specific and have better focus. – Robert Harvey Nov 26 '13 at 23:53
  • en.wikipedia.org/wiki/List_of_open-source_programming_languages you can check the wiki, you will find the license for each programming language. – padam gurung Nov 28 '13 at 16:04
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    @padamgurung that's a list of the licenses for the implementations, not for the languages... – iveqy Nov 29 '13 at 15:06
  • @iveqy .. please make me clear what is mean by implementations license? If you could, then clarify with example. – padam gurung Nov 29 '13 at 16:16
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    @padamgurung take C# as an example. It has the microsoft .NET implementation that is closed source and Mono ( mono-project.com/Main_Page ) that is an open source implementation of C#. – iveqy Nov 30 '13 at 8:11
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Programming languages, or rather the compilers and interpreters that process programs written in those languages, almost never force a license on the programs you write with them. So you can use a Free Software C compiler like gcc and compiler proprietary, closed-source programs. What you cannot do is incorporate Free Software or Open Source code in your closed-source program, and that may be harder than you expect. For example, the output of gcc is usually linked against one of a few implementations of the C Standard Library, all of which are Free Software or Open Source. And without some of that code, except in some very specific environments, your program cannot run.

  • A notable (and fairly uncommon) exception is (was?) Opa, which, becuase its standard library was licensed AGPL, it imposed the AGPL on all applications. – greyfade Nov 26 '13 at 23:48
  • The C Standard Library is not GPL, is it? – Robert Harvey Nov 26 '13 at 23:53
  • @RobertHarvey That would depend on what implementation of the C library we're talking about. Some are LGPL, some are BSD, some aren't open source. – Ross Patterson Nov 27 '13 at 12:17
  • I guess what I'm saying is that this really shouldn't be a consideration for a C standard library, and if it is, I'm not going to use it anyway. Doesn't matter, the question is hopeless. – Robert Harvey Nov 27 '13 at 16:44
  • en.wikipedia.org/wiki/List_of_open-source_programming_languages you can check the wiki, you will find the license for each programming language – padam gurung Nov 28 '13 at 16:05

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