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Do you have to have GPL license to use GPL project?
Normally, GPL projects contain code written by other developers (such as libraries) that are also licensed under GPL code. The other programmers published their code under GPL license, which means that you have to observe the GPL’s license terms to legally use their code!
What does the GPL say about providing source?
If you choose to provide source through a written offer, then anybody who requests the source from you is entitled to receive it. If you commercially distribute binaries not accompanied with source code, the GPL says you must provide a written offer to distribute the source code later.
Is it legal to use GPL code in a proprietary, closed source program?
So: as long as it’s honest-to-God communication via userspace, where the calling proprietary code forks-and-execs the called GPL wrapper program, the GPL obligations of the called program do not extend to the calling program.
Can you get the GPLv2 source code online?
The GPLv2 source code will not be put online, but can be obtained by request. However, down the line, say after 1 year, I intend to replace those GPLv2 libraries with commercial ones. I will also make my application closed source and commercial.
Is it legal to use GPL code in a proprietary, closed?
An “original work” that uses code from another source is in fact a derivative work of both the original work and the other source, and it is the derivative work that is required to be licensed under the GPL. The original work remains under whatever licence it had before.
Can a GPL license be used to distribute binary?
The GPL gives you a few options for how to distribute source code. Typically, you distribute source at the time you distribute the binary. However, section 3 (b) of the GPLv2 allows you to distribute a work based on another GPL-licensed work, in binary form, as long as you also
Can a GPL program be used as a drop in replacement?
If you are using a GPL program, but you could easily use a different one as a drop-in replacement, you’re communicating at arms length. If using a different, but similar program, means you have to re-architect your application, it’s not at arms length.
Do you have to give the source code?
You only ever distribute the software together with the source code. Once you distribute one version, as you plan, you have to supply the source code for that version to anyone who wants it, unless you only ever distribute application and source code together.