Sounds liberal enough to me - there's no requirement for redistributing libMesh with any application. Probably wouldn't hurt to email the author about your intention to be sure.

On Wed, May 8, 2013 at 10:32 AM, Kirk, Benjamin (JSC-EG311) <> wrote:
OK, Once more unto the breach, dear friends…

To complement (replace?) tetgen for 3D convex hulls, I'm looking into adding qhull as an optional, contributed package.

The full "license" is listed below.  Thoughts on what this means for us?

(Note I've given up on making these decisions…)


                    Qhull, Copyright (c) 1993-2012

                            C.B. Barber
                           Arlington, MA


       The National Science and Technology Research Center for
        Computation and Visualization of Geometric Structures
                        (The Geometry Center)
                       University of Minnesota


This software includes Qhull from C.B. Barber and The Geometry Center.
Qhull is copyrighted as noted above.  Qhull is free software and may
be obtained via http from  It may be freely copied, modified,
and redistributed under the following conditions:

1. All copyright notices must remain intact in all files.

2. A copy of this text file must be distributed along with any copies
   of Qhull that you redistribute; this includes copies that you have
   modified, or copies of programs or other software products that
   include Qhull.

3. If you modify Qhull, you must include a notice giving the
   name of the person performing the modification, the date of
   modification, and the reason for such modification.

4. When distributing modified versions of Qhull, or other software
   products that include Qhull, you must provide notice that the original
   source code may be obtained as noted above.

5. There is no warranty or other guarantee of fitness for Qhull, it is
   provided solely "as is".  Bug reports or fixes may be sent to; the authors may or may not act on them as
   they desire.
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