#11162: print warning if no C compiler found
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   Reporter:  jhpalmieri   |          Owner:               
       Type:  enhancement  |         Status:  needs_info   
   Priority:  minor        |      Milestone:  sage-4.7.2   
  Component:  scripts      |       Keywords:               
Work_issues:               |       Upstream:  N/A          
   Reviewer:               |         Author:  John Palmieri
     Merged:               |   Dependencies:               
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Comment(by jhpalmieri):

 Okay, so when do we need to print an error?

  - when running `sage -ba`
  - when running `sage -b` if a Cython file has been modified
  - when running `sage --cython ...`
  - when running `sage --upgrade ...`
  - when running `sage -i ...` or `sage -f ...`
  - while running sage, when attaching a pyx or spyx file
  - while running the sage notebook, when evaluating a `%cython` block

 Anything else?

 It seems like it might actually be less intrusive if you print a warning
 once, the first time Sage is run, than if you raise an error whenever any
 of these are attempted.  It  also looks more complicated to write a patch
 to catch all of the possible cases.

 But I don't have a strong opinion about this.  I agree with the "minor"
 priority for this ticket...

-- 
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/11162#comment:11>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica, 
and MATLAB

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