Using code from MAME

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Please chime in on a proposed restructuring of the ROM hacking sections.

04-29-24 08:20 AM

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Drag

Posted on 02-22-07 06:25 AM

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Spike
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Until there's a programming forum, I can't really post this anywhere but here.

Once there is a programming forum, please move this thread there, thanks.

Anyway, I would like to use the OPL3 emulator from MAME. I have the source code and such, but I don't quite know how to correctly "borrow" this code without people coming after me screaming "GPL COPYLEFT OPENSOURCE >8( >8( >8(" (note, I have no idea what the smiley code for *angryface* is). I've read the licensing document, but I'm a little confused:

* Redistributions may not be sold, nor may they be used in a commercial
product or activity.

Yeah, I don't plan on selling it.

* Redistributions that are modified from the original source must include the
complete source code, including the source code for all components used by a
binary built from the modified sources. However, as a special exception, the
source code distributed need not include anything that is normally distributed
(in either source or binary form) with the major components (compiler, kernel,
and so on) of the operating system on which the executable runs, unless that
component itself accompanies the executable.

At first, I don't think I'll need to edit this source code. If I don't edit it, do I need to include the unmodified source code anyway? If I do modify the source code at all, I know then I'll be *required* to include it with any source distributions.

* Redistributions must reproduce the above copyright notice, this list of
conditions and the following disclaimer in the documentation and/or other
materials provided with the distribution.

Does that mean that ALL of my source code must use this license, or do I simply just need to include the licensing document to accompany the code I took from MAME?

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Xkeeper

Posted on 02-22-07 06:51 AM

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YOu could always just port the code yourself into a .dll or whatever, then refrence it externally... as far as I know, you could include the licensing for the crpa in the .DLL under the bullshit license, and then your goodness.

But, as we all know, IANAL.

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I dealt with it.

Drag

Posted on 02-23-07 03:07 AM

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Spike
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I asked #rom-hacking, (since they're more likely to know how to interpret the license), and basically:

If I don't modify the source code I borrowed, I can do whatever I want. If I do modify the source code I borrowed, my entire code must become open source, and I need to make my source code available. Only the source code I borrowed needs to follow the license, so if I need to make the project open source, I need to include the license, but the rest of my project doesn't need to use it, unless I feel like applying it to the rest of my code.

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