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<p>I failed also to install Agda 2.6.0 using cabal because a file
necessary in the installation is missing, namely <i>alex</i>.
Here is the message that I got: <br>
</p>
<blockquote> <i>setup: The program 'alex' version >=3.1.0
&& <3.2.0 || ==3.2.1 || >=3.2.3 is</i><br>
<i> </i><i>required but it could not be found.</i><br>
<i> </i><i>cabal: Leaving directory
'/tmp/cabal-tmp-15469/Agda-2.6.0.1'</i><br>
<i> </i><i>cabal: Error: some packages failed to install:</i><br>
<i> </i><i>Agda-2.6.0.1 failed during the configure step. The
exception was:</i><br>
<i> </i><i>ExitFailure 1</i><br>
</blockquote>
<pre class="moz-signature" cols="72">--
Cheers
---------------------------
Pierre Lescanne (Professeur émérite)
LIP / ENS de Lyon
46 allée d'Italie
69364 LYON Cedex 07, France
tél: +33 6 85 70 94 31
<a class="moz-txt-link-freetext" href="http://perso.ens-lyon.fr/pierre.lescanne/">http://perso.ens-lyon.fr/pierre.lescanne/</a>
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