It does not allow modification. Not free
On 09/30/2013 12:23 AM, bastien ROUCARIES wrote:
FPL is non dfsg: it does not allow modification.
Please move to non-free/repackage.
Thanks for your bug report. I am the upstream developer of Orthanc .
I am unsure that the FPL you refer to is the same as the FPL of the SHA-1 package by Paul E. Jones that is shipped with Orthanc . Here is the content of the FPL from SHA-1:
"Copyright (C) 1998, 2009
Paul E. Jones <email@example.com>
Freeware Public License (FPL)
This software is licensed as "freeware." Permission to distribute this software in source and binary forms, including incorporation into other products, is hereby granted without a fee. THIS SOFTWARE IS PROVIDED 'AS IS' AND WITHOUT ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE AUTHOR SHALL NOT BE HELD LIABLE FOR ANY DAMAGES RESULTING FROM THE USE OF THIS SOFTWARE, EITHER DIRECTLY OR INDIRECTLY, INCLUDING, BUT NOT LIMITED TO, LOSS OF DATA OR DATA BEING RENDERED INACCURATE."
This looks to me like a permissive MIT license. I have always thought that this license is compatible with the FSF philosophy. This is evidently not the same license as the so-called Foundation Public License by Bridgethink (also nicknamed FPL), which is indeed incompatible with the Debian Free Software Guidelines .
If you do confirm that the FPL of the SHA-1 package is incompatible with Debian policy, I will immediately switch to another library (Orthanc 0.6.2 is to be released this week). I will most probably use boost::uuid if this change is required.
PS: I also forward this mail to the "debian-legal" mailing list.
 http://www.libroscope.org/FPL-la-licence-libere-l-argent (in French only)