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* Dynamic loading of C libraries
@ 2010-05-19 23:09 Richard Stallman
  2010-05-21  7:25 ` joakim
  2010-05-22  0:15 ` Stefan Monnier
  0 siblings, 2 replies; 4+ messages in thread
From: Richard Stallman @ 2010-05-19 23:09 UTC (permalink / raw
  To: emacs-devel

I talked with our lawyer, and we determined that GCC's technique of
checking for a symbol whose name says "I am under a GPL3-compatible
license" is ok for Emacs and other GNU packages when dynamically
loading libraries at the C level.

So you can implement dynamic loading with the check for that symbol.
If the symbol is not present then the function to load should
report an error and not load it.



^ permalink raw reply	[flat|nested] 4+ messages in thread

* Re: Dynamic loading of C libraries
  2010-05-19 23:09 Dynamic loading of C libraries Richard Stallman
@ 2010-05-21  7:25 ` joakim
  2010-05-22  0:15 ` Stefan Monnier
  1 sibling, 0 replies; 4+ messages in thread
From: joakim @ 2010-05-21  7:25 UTC (permalink / raw
  To: rms; +Cc: emacs-devel

Richard Stallman <rms@gnu.org> writes:

> I talked with our lawyer, and we determined that GCC's technique of
> checking for a symbol whose name says "I am under a GPL3-compatible
> license" is ok for Emacs and other GNU packages when dynamically
> loading libraries at the C level.
>
> So you can implement dynamic loading with the check for that symbol.
> If the symbol is not present then the function to load should
> report an error and not load it.

Super news!


-- 
Joakim Verona



^ permalink raw reply	[flat|nested] 4+ messages in thread

* Re: Dynamic loading of C libraries
  2010-05-19 23:09 Dynamic loading of C libraries Richard Stallman
  2010-05-21  7:25 ` joakim
@ 2010-05-22  0:15 ` Stefan Monnier
  2010-05-22  1:37   ` Leo
  1 sibling, 1 reply; 4+ messages in thread
From: Stefan Monnier @ 2010-05-22  0:15 UTC (permalink / raw
  To: rms; +Cc: emacs-devel

> I talked with our lawyer, and we determined that GCC's technique of
> checking for a symbol whose name says "I am under a GPL3-compatible
> license" is ok for Emacs and other GNU packages when dynamically
> loading libraries at the C level.
> So you can implement dynamic loading with the check for that symbol.
> If the symbol is not present then the function to load should
> report an error and not load it.

That's great news.  So all we need now is for someone to submit a patch
that provides such dynamic loading functionality, and then start
using it.


        Stefan



^ permalink raw reply	[flat|nested] 4+ messages in thread

* Re: Dynamic loading of C libraries
  2010-05-22  0:15 ` Stefan Monnier
@ 2010-05-22  1:37   ` Leo
  0 siblings, 0 replies; 4+ messages in thread
From: Leo @ 2010-05-22  1:37 UTC (permalink / raw
  To: emacs-devel

On 2010-05-22 01:15 +0100, Stefan Monnier wrote:
>> I talked with our lawyer, and we determined that GCC's technique of
>> checking for a symbol whose name says "I am under a GPL3-compatible
>> license" is ok for Emacs and other GNU packages when dynamically
>> loading libraries at the C level.
>> So you can implement dynamic loading with the check for that symbol.
>> If the symbol is not present then the function to load should
>> report an error and not load it.
>
> That's great news.  So all we need now is for someone to submit a patch
> that provides such dynamic loading functionality, and then start
> using it.

Isn't the patch already around
http://www.loveshack.ukfsn.org/emacs/dynamic-loading/?

>
>
>         Stefan




^ permalink raw reply	[flat|nested] 4+ messages in thread

end of thread, other threads:[~2010-05-22  1:37 UTC | newest]

Thread overview: 4+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2010-05-19 23:09 Dynamic loading of C libraries Richard Stallman
2010-05-21  7:25 ` joakim
2010-05-22  0:15 ` Stefan Monnier
2010-05-22  1:37   ` Leo

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