Cabal and GHC

Johan Tibell johan.tibell at
Fri Nov 23 07:28:29 CET 2012

On Thursday, November 22, 2012, Manuel M T Chakravarty wrote:

> Simon Peyton-Jones <simonpj at <javascript:;>>:
> > So the invariant I suggest is
> > * If it'd work in an empty database, it should work in any non-empty one
> > * Installing X should never break the existing installation of Y
> This makes a lot of sense to me.

We've been working on this for some time and this property is sometimes
known as hermetic builds. The first approximation will be sandbox in (as it
is relatively easy to implement). Long term we want a write only Nix like
package store.
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