15 Jul
2014
15 Jul
'14
9:42 a.m.
* Daniel Trstenjak
Hi Roman,
You should create a fresh sandbox per build, then.
This is both sufficient (nothing is installed => no reason to prefer an older version) and necessary (when in a sandbox, cabal won't let you have two different versions of the library installed).
As long as you haven't installed the library locally (in ~/.cabal) then it's sufficient, otherwise it isn't.
When in a sandbox, cabal ignores the user package database. As long as you don't install it *globally*, you should be fine. Roman