#4856: [with spkg; needs work] make qasm an optional spkg
-------------------------+--------------------------------------------------
 Reporter:  was          |        Owner:  mabshoff
     Type:  enhancement  |       Status:  new     
 Priority:  major        |    Milestone:  sage-3.3
Component:  packages     |   Resolution:          
 Keywords:               |  
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Changes (by GeorgSWeber):

  * summary:  [with spkg; needs review] make qasm an optional spkg => [with
              spkg; needs work] make qasm an optional spkg

Comment:

 This ticket needs work in several areas:

 * SPKG.txt is not up to current standards, see
 http://wiki.sagemath.org/spkgTemplate

 * spkg-install is not up to current standards, see
 http://wiki.sagemath.org/SPKG_Audit resp. trac ticket #633 --- adding a
 check for SAGE_LOCAL to be non-empty is a blocker IMHO

 * The spkg-install says:
 {{{
     echo "You must make sure the dvipng program is available on your
 system."
     echo "You might be able to install the dvipng program listed in the"
     echo "output of 'sage -optional'.  If that doesn't work, just use
 whatever"
     echo "is offered by your operating system."
     exit 1
 }}}
 but in the discussion on sage-devel (link above) it is said:
 {{{
 Do not install that dvipng spkg.  You *MUST* install dvipng instead
 using whatever method your operating system provides (e.g., rpm, deb,
 etc.).  It's a completely standard linux program.  The Sage dvipng
 spkg will be deleted soon, since it doesn't make sense for us to be
 hosting it.

  -- William
 }}}

 * (optional) the qasm.py would benefit from a doctest, the addition of
 some kind of example could easily be turned into a working spkg-check
 script

-- 
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/4856#comment:2>
Sage <http://sagemath.org/>
Sage - Open Source Mathematical Software: Building the Car Instead of 
Reinventing the Wheel
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