<div dir="ltr"><div style>You can just write a bash script that will do: </div><div style><br></div><div style> cabal install --constraint='bar == v'</div><div style><br></div><div style>for all the values of 'v' (0.1, 0.2, 1.2.5.1, ...) you are interested in. You can be aware of all the existing versions just using the directory listing in <a href="http://hackage.haskell.org/packages/archive/containers/">http://hackage.haskell.org/packages/archive/containers/</a> (for the 'containers' package in this case) or by using cabal-install cleverly maybe? </div>
<div style><br></div><div style>I just saw 'cabal info containers' gives a list of available versions, up to a point... after which it says "(and 4 others)". So maybe go see how 'cabal info' does this? But all in all, this should give you enough to work out a nice solution.</div>
<div><br></div></div><div class="gmail_extra"><br><br><div class="gmail_quote">On Thu, Jul 4, 2013 at 12:56 PM, Daniel Díaz Casanueva <span dir="ltr"><<a href="mailto:dhelta.diaz@gmail.com" target="_blank">dhelta.diaz@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">Hello everyone.<div><br></div><div>I would like to check what dependencies is one of my packages compatible with. For example, say I have a package called "foo" that depends on package "bar". Most likely, "foo" does not build with each version of "bar". What I want to do is try to build "foo" with each single version of "bar" (not manually).</div>
<div><br></div><div>What is the best approach to this?</div></div>
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<br></blockquote></div><br><br clear="all"><div><br></div>-- <br>Alp Mestanogullari
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