Thanks for the start points, Christian and Philip.
I would have never thought about those use cases.
I'll definitely look into this further.

On Wed, 19 Apr 2017 13:31:08 +0000 (UTC)
Christian Weisgerber <na...@mips.inka.de> wrote:

> On 2017-04-19, Philip Guenther <guent...@gmail.com> wrote:
> 
> > For a broader answer to the "why?", take a look at the patches under
> > /usr/ports/ which add uses of the *_deterministic() calls.  
> 
> For instance, take graphics/netpbm and look at its multitude of
> image manipulation tools that take a -randomseed=integer argument
> to ensure that the same result can be obtained on separate
> invocations.
> 

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