#12276: dvipng fails due to missing jpeg symbols (gd spkg)
----------------------+-----------------------------------------------------
   Reporter:  mjo     |          Owner:  GeorgSWeber
       Type:  defect  |         Status:  new        
   Priority:  major   |      Milestone:  sage-5.0   
  Component:  build   |       Keywords:             
Work_issues:          |       Upstream:  N/A        
   Reviewer:          |         Author:             
     Merged:          |   Dependencies:             
----------------------+-----------------------------------------------------
 On machines where the system `gd` is build with jpeg support, `dvipng`
 will fail with missing symbols:

 {{{
 WARNING: display latex u'10^8': dvipng exited with error:
   [stderr]
   dvipng: symbol lookup error: dvipng: undefined symbol:
           gdImageCreateFromJpegPtr
 }}}

 because sage's `gd` is built without jpeg support.

 This breaks pretty much all of the reference documentation.

 Some potential solutions:

  * Remove the `--without-jpeg` flag from the `gd` spkg
  * Package `dvipng` with sage, and build it against sage's `gd`
  * Don't hide the system `gd` if it's present while building the docs

-- 
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/12276>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica, 
and MATLAB

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