Not for this case; it&#39;s more for setups that want to skip that slot entirely (possibly stack, possibly third party setups --- I suspect some of the big in-house folks would use it for custom sandboxing).<br><br>On Friday, August 4, 2017, Daniel Trstenjak &lt;<a href="mailto:daniel.trstenjak@gmail.com">daniel.trstenjak@gmail.com</a>&gt; wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><br>
&gt; Strictly speaking, the second option (specifying the sandbox as the user db) is a more correct match with what cabal-install does<br>
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Ok, is there then a need for the `-no-user-package-db`?<br>
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</blockquote><br><br>-- <br><div dir="ltr"><div>brandon s allbery kf8nh                               sine nomine associates</div><div><a href="mailto:allbery.b@gmail.com" target="_blank">allbery.b@gmail.com</a>                                  <a href="mailto:ballbery@sinenomine.net" target="_blank">ballbery@sinenomine.net</a></div><div>unix, openafs, kerberos, infrastructure, xmonad        <a href="http://sinenomine.net" target="_blank">http://sinenomine.net</a></div></div><br>