Hi everyone,
Csound for iOS is AWESOME! I picked up a copy as soon as this was
available and started having all sorts of fun with it. Very powerful,
very impressive. I have some questions about licensing. I'm aware I
could keep my project open source, or just supply object files if I
want to publish on the Apple App Store. I know of some LGPL projects
that have been giving explicit permission to publish on the store
without open sourcing or supplying object files (ala Cocos2d). I was
wondering if someone with authority over the code would be willing to
have a private conversation about licensing.
Thanks,
Tim

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Hi Tim,

Csound is released under the LGPL and projects using Csound should
honor that.  Not only that, libsndfile, which we use, is released
under the LGPL.  To get a change of license, you would need to get
sign off by all contributors to Csound, as well as work out licensing
for libsndfile.   We do not have any kind of foundation or entity that
code rights get assigned to (i.e. LibreOffice, contributors maintain
copyright but license their contributions to LibreOffice foundation,
as far as I understand), so there is no central organization to change
things at this time.

The spirit of the LGPL is such that those who modify the source code
are required to publish the code such that it can be contributed back
to the original authors.  For those who use just binaries with dynamic
linking, it's provisioned to allow commercial use, as they won't be
able to modify the library when using it.  Most people who use Csound
for iOS probably won't be touching the code that is used to build the
static lib binaries, but most will use the CsoundObj source code that
is released as source.  Technically, those on Android are in the same
boat if they modify or touch any of the CsoundObj code, so they'll
need to publish any changes. (I imagine we should release the
CsoundObj part of the Csound for Android SDK as a binary jar for the
sake of proper licensing.)

The license is what it is, so following it is pretty clear, IMO.
Every company I've worked for has had be careful in choosing what
libraries to base projects on (the last company I worked for had a
whole legal time that verified exactly what libraries were allowed and
not). The last time there was a license change, when Csound went to
LGPL, I remember it took quite a bit of time and effort for that to
happen. Not that it's impossible, but I'd expect it to take a bit of
time if you want to pursue this further.

steven

On Wed, Feb 27, 2013 at 12:19 AM, Tim Lukens  wrote:
> Hi everyone,
> Csound for iOS is AWESOME! I picked up a copy as soon as this was
> available and started having all sorts of fun with it. Very powerful,
> very impressive. I have some questions about licensing. I'm aware I
> could keep my project open source, or just supply object files if I
> want to publish on the Apple App Store. I know of some LGPL projects
> that have been giving explicit permission to publish on the store
> without open sourcing or supplying object files (ala Cocos2d). I was
> wondering if someone with authority over the code would be willing to
> have a private conversation about licensing.
> Thanks,
> Tim
>
> ------------------------------------------------------------------------------
> Everyone hates slow websites. So do we.
> Make your web apps faster with AppDynamics
> Download AppDynamics Lite for free today:
> http://p.sf.net/sfu/appdyn_d2d_feb
> _______________________________________________
> Csound-devel mailing list
> Csound-devel@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/csound-devel

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