On Nov 25, 2007 5:19 AM, William Stein <[EMAIL PROTECTED]> wrote: > > Hello, > > Some of the Sage developers are considering including Pyx > (http://pyx.sourceforge.net/) > in Sage (http://sagemath.org). One issue is that I think Pyx is > currently licensed GPL v2 only. > Unfortunately Sage will soon have to start including several new > versions of GNU programs > such as GMP, GNUTLs, GSL, etc., and these are all licensed under "GPL > v3 or greater". > Also PolyBoRi (http://polybori.sourceforge.net/) will soon be in Sage, > and it is also "GPL v3" > licensed. Unfortunately, it is a copyright violation to combine GPL > v2 and GPL v3 software > together and redistribute it, since the FSF decided to make GPL v3 be
If it is true that SAGE is legaly unable to include GPL v2 only and GPL v3 only programs, not modifying them, not relicensing them, but just calling them from Python, then FSF did a terrible move, against the free software and against the end users, which GPL is supposed to protect. Ondrej --~--~---------~--~----~------------~-------~--~----~ To post to this group, send email to [email protected] To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sage-devel URLs: http://sage.scipy.org/sage/ and http://modular.math.washington.edu/sage/ -~----------~----~----~----~------~----~------~--~---
