Thread: propogation of open source

  1. #1
    Malum in se abachler's Avatar
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    Apr 2007

    propogation of open source

    I have a function that I am adding to an open source library (CxImage). The function is in its own file and does not use any of the original libraries code, except to call some of the functions in the library. What I'm wondering is will this cause that function, which is currently closed source to become open source, or can we maintain that file as closed while still providing the rest of the library code as is to the public? This one function isn tthat big of a deal, sicne it realyl just wraps the functionality fothe library for a specific type of conversion, but we may want to add more functions later on that are more proprietary. I am sure the CEO will be passing this by a lawyer, but I wanted the general opinion on the matter prior to suggesting this course of action.

  2. #2
    Frequently Quite Prolix dwks's Avatar
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    Apr 2005
    I would say it depends on the license. For example, the LGPL allows proprietary code to link with the library, while the GPL does not.

    Since the library you're using is released under the Zlib license, you can probably do this:
    Copyleft No
    Linking from code with a different license Yes
    There you have it.

    Seek and ye shall find. quaere et invenies.

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  3. #3
    Cat without Hat CornedBee's Avatar
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    Apr 2003
    You can do pretty much everything with zlib-licensed stuff, except claim that you wrote code that you didn't, or remove the license statement.
    All the buzzt!

    "There is not now, nor has there ever been, nor will there ever be, any programming language in which it is the least bit difficult to write bad code."
    - Flon's Law

  4. #4
    Malum in se abachler's Avatar
    Join Date
    Apr 2007
    OK, thanks guys, just didnt want the boss having a caniption fit because 30 lines of code had to be released.

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