pkg SAT_SOLVER bugs

[Baptiste Daroussin]

On Mon, Jun 27, 2016 at 12:38:02PM +0200, Hans Petter Selasky wrote:
> Hi,
> 
> I found some bugs in PKG with regard to the SAT_SOLVER environment variable.
> Please find patch attached :-)
> 
> Issues fixed:
> 1) No need to use hash table when generating SAT rules for external solver.
> Variables are already in a linear array. Fix encoding and decoding of SAT
> data.
> 2) Endless variable loop caused pkg to crash.
> 3) it->inverse was checked for non-zero, while it should actually be checked
> for -1 only. SAT rules produces were all negative.
> 
> How to verify:
> 
> make -C /usr/ports/math/picosat all install clean
> 
> env SAT_SOLVER=picosat pkg upgrade
> 
> --HPS

Thank you I will look into shortly

Best regards,
Bapt
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