#12276: dvipng fails due to missing jpeg symbols (gd spkg)
----------------------------+-----------------------------------------------
       Reporter:  mjo       |         Owner:  GeorgSWeber
           Type:  defect    |        Status:  new        
       Priority:  critical  |     Milestone:  sage-5.11  
      Component:  build     |    Resolution:             
       Keywords:            |   Work issues:             
Report Upstream:  N/A       |     Reviewers:             
        Authors:            |     Merged in:             
   Dependencies:            |      Stopgaps:             
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Changes (by mjo):

  * priority:  major => critical


Comment:

 The docs now default to using MathJax, which fixes that problem, but we're
 traded it for a worse one: I can no longer plot anything.

 With a fresh sage-5.10.rc2:

 {{{
 sage: plot(sin,x,-1,1)
 dvipng: symbol lookup error: dvipng: undefined symbol:
 gdImageCreateFromJpegPtr
 ...
 RuntimeError: dvipng was not able to process the following file:
 
/home/mjo/.sage//matplotlib-1.2.1/tex.cache/c97c52e62b093248234a0445c488a218.dvi
 Here is the full report generated by dvipng:


 }}}

 The error only occurs within sage; if I run dvipng manually (not within
 `sage -sh`), it works fine. If I run it within `sage -sh`, it crashes with
 the missing symbols error.

 The problem is the same as the original report. You can't expect my dvipng
 to be built against a gd with the same flags as the one shipped by sage.

-- 
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/12276#comment:1>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica, 
and MATLAB

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