[dev] Re: Replacing LGPL libraries: Use of lp_solve for Calc's linear solver

2011-06-12 Thread rony

On 11.06.2011 17:55, Niklas Nebel wrote:
 On 11.06.2011 17:43, rony wrote:
 On 11.06.2011 17:36, Niklas Nebel wrote:
 Dependencies on LGPL libraries may soon become a problem.
 What would be the problem here?

 [Just curious why it was o.k. in the past, but may be a problem
 soon ?]

 http://www.apache.org/legal/3party.html
Ah, I see!

Thanks.

---rony

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[dev] Re: Replacing LGPL libraries: Use of lp_solve for Calc's linear solver

2011-06-12 Thread rony
Hi Ariel,

On 11.06.2011 20:26, Ariel Constenla-Haile wrote:
 Hello rony,

 On Saturday 11 June 2011, 12:43, rony wrote:
   
 Hi Niklas,

 On 11.06.2011 17:36, Niklas Nebel wrote:
 
 Dependencies on LGPL libraries may soon become a problem.
   
 What would be the problem here?
 
 Oh, haven't you been following the OOo Apache Incubator Proposal?
 http://wiki.apache.org/incubator/OpenOfficeProposal
 http://mail-archives.apache.org/mod_mbox/incubator-general/201106.mbox/thread
 (almost 1000 mails)
 The thing is that Apache only releases code under the AL.
   
thank you very much, especially for the links !

 [Just curious why it was o.k. in the past, but may be a problem soon ?]

 
 One such library is lp_solve, which is the basis of the OpenOffice.org
 Linear Solver in Calc.

 It would certainly be a nice twist of irony if the
 evil-grasping-Sun-solver
   
 Again, not sure what you mean with evil-grasping here? 
 
 http://osdir.com/ml/gnome.ximian.openoffice/2008-04/msg00073.html
   
Ah, I see!
:)

Again, thank you *very* much for the link!

---rony

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[dev] Re: Replacing LGPL libraries: Use of lp_solve for Calc's linear solver

2011-06-12 Thread Christian Lippka

Am 11.06.2011 20:26, schrieb Ariel Constenla-Haile:

Hello rony,

On Saturday 11 June 2011, 12:43, rony wrote:

[...]
[Just curious why it was o.k. in the past, but may be a problem soon ?]


One such library is lp_solve, which is the basis of the OpenOffice.org
Linear Solver in Calc.

It would certainly be a nice twist of irony if the
evil-grasping-Sun-solver


Again, not sure what you mean with evil-grasping here?


http://osdir.com/ml/gnome.ximian.openoffice/2008-04/msg00073.html


It is called slapping the cow while drinking her milk :)

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[dev] Re: Replacing LGPL libraries: Use of lp_solve for Calc's linear solver

2011-06-11 Thread rony
Hi Niklas,

On 11.06.2011 17:36, Niklas Nebel wrote:
 Dependencies on LGPL libraries may soon become a problem. 
What would be the problem here?

[Just curious why it was o.k. in the past, but may be a problem soon ?]

 One such library is lp_solve, which is the basis of the OpenOffice.org
 Linear Solver in Calc.

 It would certainly be a nice twist of irony if the
 evil-grasping-Sun-solver 
Again, not sure what you mean with evil-grasping here? Doesn't Oracle
(Sun) hold the copyright and can issue a version with any license of
their choice?

 became exclusive to LibreOffice, but I'll go ahead and spoil the fun:
 COIN-OR (www.coin-or.org) has a lot of OR code under the less-evil EPL
 or CPL licenses. Among it: Clp for linear programming, Cbc for integer
 conditions, and CoinMP, which wraps these in a single shared object
 with a C interface.

 I created issue 118160 and attached a simple proof-of-concept patch to
 use CoinMP instead of lp_solve. From some limited testing, this seems
 to work very well. Some changes will still be needed for building and
 packaging, and perhaps some tweaking of solver settings. But the patch
 shows that replacing lp_solve is clearly a (pardon the pun) solvable
 problem.
Sounds promising, nevertheless.
:)

---rony


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[dev] Re: Replacing LGPL libraries: Use of lp_solve for Calc's linear solver

2011-06-11 Thread Niklas Nebel

On 11.06.2011 17:43, rony wrote:

On 11.06.2011 17:36, Niklas Nebel wrote:

Dependencies on LGPL libraries may soon become a problem.

What would be the problem here?

[Just curious why it was o.k. in the past, but may be a problem soon ?]


http://www.apache.org/legal/3party.html


It would certainly be a nice twist of irony if the
evil-grasping-Sun-solver

Again, not sure what you mean with evil-grasping here? Doesn't Oracle
(Sun) hold the copyright and can issue a version with any license of
their choice?


It was called such by someone else, which is part of the irony of it.

Niklas
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[dev] Re: Replacing LGPL libraries: Use of lp_solve for Calc's linear solver

2011-06-11 Thread Ariel Constenla-Haile
Hello rony,

On Saturday 11 June 2011, 12:43, rony wrote:
 Hi Niklas,
 
 On 11.06.2011 17:36, Niklas Nebel wrote:
  Dependencies on LGPL libraries may soon become a problem.
 
 What would be the problem here?

Oh, haven't you been following the OOo Apache Incubator Proposal?
http://wiki.apache.org/incubator/OpenOfficeProposal
http://mail-archives.apache.org/mod_mbox/incubator-general/201106.mbox/thread
(almost 1000 mails)
The thing is that Apache only releases code under the AL.

 [Just curious why it was o.k. in the past, but may be a problem soon ?]
 
  One such library is lp_solve, which is the basis of the OpenOffice.org
  Linear Solver in Calc.
  
  It would certainly be a nice twist of irony if the
  evil-grasping-Sun-solver
 
 Again, not sure what you mean with evil-grasping here? 

http://osdir.com/ml/gnome.ximian.openoffice/2008-04/msg00073.html


Regards
-- 
Ariel Constenla-Haile
La Plata, Argentina


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