From: Dan Anderson <dan.ander...@oracle.com>
Date: Sat, 21 Dec 2013 17:54:52 -0800

> I think we need to clarify why this should be done. The SPARC "random"
> instruction was designed at Sun Microsystems (now Oracle Corporation)
> for a never-released processor several years ago. For SPARC,
> randomness is obtained by reading a special control register. The
> SPARC "random" instruction was never implemented and never will be
> implemented. Please remove code to detect this instruction. Thanks!

The patch was presented as a way to get rid of SIGILL dropping the
application into the debugger.

The same problem is going to exist if people run this library on
chips without the crypto instructions, or other ones we check for.
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