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.error { color:#AA0000; }</style></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;"><div class="bloop_markdown"><p>Hey,</p>
<p>Little addition to what Michael already sent you.</p>
<p>To get ‘the latest’ you should build from sources :D</p>
<p>But in case it’s ok for you to have <code>ghc 7.8.3</code> and you don’t want to <code>./configure; make; make install</code>, you might also check this installation script on <a href="https://github.com/yogsototh/install-haskell">github</a>. </p>
<p></p></div><div class="bloop_original_html"><style>body{font-family:Helvetica,Arial;font-size:13px}</style><div id="bloop_customfont" style="font-family:Helvetica,Arial;font-size:13px; color: rgba(0,0,0,1.0); margin: 0px; line-height: auto;"><br></div> <br><p class="airmail_on" style="color:#000;">On March 4, 2015 at 11:28:50, Michael Snoyman (<a href="mailto:michael@snoyman.com">michael@snoyman.com</a>) wrote:</p> <blockquote type="cite" class="clean_bq"><span><div><div></div><div>
<title></title>
<div dir="ltr">I'd recommend looking at:<br>
<br>
<a href="http://www.stackage.org/install#mac-os-x">http://www.stackage.org/install#mac-os-x</a><br>
<div><a href="https://github.com/bitemyapp/learnhaskell/blob/master/README.md#mac-os-x">
https://github.com/bitemyapp/learnhaskell/blob/master/README.md#mac-os-x</a><br>
</div>
<div><br></div>
<div>I don't generally recommend using the platform installer, it
ends up pegging libraries to old versions which causes dependency
problems, or in some cases have known bugs.</div>
</div>
<br>
<div class="gmail_quote">On Wed, Mar 4, 2015 at 11:26 AM
emacstheviking <<a href="mailto:objitsu@gmail.com">objitsu@gmail.com</a>> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div dir="ltr">Agreed Michael!
<div><br></div>
<div>I am currently wiping all Mac Ports packages and I will
perform a clean up of /Library/Haskell etc.</div>
<div><br></div>
<div>What is the *preferred* way to get the lastest for OSX: Using
homebrew, macports or the Haskell Platform. I *used* to use the
platform installer but for some reason (cabal I expect!) I started
trying out other ways...</div>
<div><br></div>
<div>I think actually I will go the platform packager
again...</div>
</div>
<div class="gmail_extra"><br>
<div class="gmail_quote">On 4 March 2015 at 09:13, Michael Snoyman
<span dir="ltr"><<a href="mailto:michael@snoyman.com" target="_blank">michael@snoyman.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">I can't really explain the details of what's going
on here. It seems that in some cases different versions of the
executables are being found, but I don't know why. Wiping out your
sandbox (cabal sandbox delete) and starting over may be sufficient
to recover.<br></div>
<div>
<div><br>
<div class="gmail_quote">On Wed, Mar 4, 2015 at 11:11 AM
emacstheviking <<a href="mailto:objitsu@gmail.com" target="_blank">objitsu@gmail.com</a>> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div dir="ltr">
<div>As requested,</div>
<div><br></div>
<div><font face="monospace, monospace">iMac:~ vosabristol$ ghc
--version</font></div>
<div><font face="monospace, monospace">The Glorious Glasgow Haskell
Compilation System, version 7.8.3</font></div>
<div><br></div>
<div><font face="monospace, monospace">which ghc</font></div>
<div><font face="monospace, monospace">/opt/local/bin/ghc</font><br></div>
<div><br></div>
<div>Hmm.... it shows a macports instsallation of GHC... but I am
sure that's how I git it... I *used* to use the OSX installation
package but I thought a clean start using MacPorts would somehow
change the mood...</div>
<div><br></div>
<div>
<div><font face="monospace, monospace">iMac:~ vosabristol$ cabal
--version</font></div>
<div><font face="monospace, monospace">cabal-install version
1.16.0.2</font></div>
<div><font face="monospace, monospace">using version 1.16.0 of the
Cabal library</font></div>
</div>
<div><br></div>
<div>
<div><font face="monospace, monospace">iMac:~ vosabristol$ which
cabal</font></div>
<div><font face="monospace, monospace">/usr/bin/cabal</font></div>
</div>
<div><br></div>
<div>So... there is a possible case for *once again* performing a
complete and utter removal of Haskell and its partners in crime and
doing a fresh installation?</div>
<div><br></div>
<div><br></div>
<div>Out of frustration I built OCaml and OPAM from sources last
night but I'd still like to go with GHC!</div>
<div><br></div>
<div>:)</div>
<div><br></div>
</div>
<div class="gmail_extra"><br>
<div class="gmail_quote">On 3 March 2015 at 20:43, Michael Snoyman
<span dir="ltr"><<a href="mailto:michael@snoyman.com" target="_blank">michael@snoyman.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">Funny that there's an issue being discussed in the
cabal issue tracker right now[1] similar to this. <span style="font-size:13.1999998092651px;line-height:1.5">But the report
you're giving here is particularly strange. Cabal-1.16 implies that
you're using GHC 7.6, which is supported by the claim that base 4.7
isn't available. I'd recommend starting off with running the
following commands and pasting the output:</span>
<div><br></div>
<div>ghc --version</div>
<div>which ghc</div>
<div>cabal --version</div>
<div>which cabal</div>
<div>
<div><br>
[1] <a href="https://github.com/haskell/cabal/issues/2438" target="_blank">https://github.com/haskell/cabal/issues/2438</a><br></div>
</div>
</div>
<br>
<div class="gmail_quote">
<div>
<div>On Tue, Mar 3, 2015 at 10:21 PM emacstheviking <<a href="mailto:objitsu@gmail.com" target="_blank">objitsu@gmail.com</a>> wrote:<br></div>
</div>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div>
<div>
<div dir="ltr">Forgot to add that somehow, despite the upgrade, my
cabal version has gone backwards from 1.20.0.1 to 1.16.0
<div><br></div>
<div>WTF?</div>
<div><br></div>
</div>
<div class="gmail_extra"><br>
<div class="gmail_quote">On 3 March 2015 at 20:19, emacstheviking
<span dir="ltr"><<a href="mailto:objitsu@gmail.com" target="_blank">objitsu@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">I started an OpenGL project within an LTS sandbox as
guided on another post and, somewhat foolishly it would see, I did
a "cabal install cabal-install" when prompted that a new version
was available.
<div><br></div>
<div>The very next time I tried to work on my code.... I got
this:</div>
<div><br></div>
<div>
<div><font face="monospace, monospace">bash-3.2$ pwd</font></div>
<div><font face="monospace, monospace">/Users/seancharles/Documents/Coding/haskell/lts1</font></div>
<div><font face="monospace, monospace">bash-3.2$ cabal
build</font></div>
<div><font face="monospace, monospace">cabal: You need to re-run
the 'configure' command. The version of Cabal being</font></div>
<div><font face="monospace, monospace">used has changed (was
Cabal-1.20.0.1, now Cabal-1.16.0).</font></div>
<div><font face="monospace, monospace">bash-3.2$ cabal
configure</font></div>
<div><font face="monospace, monospace">Resolving
dependencies...</font></div>
<div><font face="monospace, monospace">Configuring
lts1-0.1.0.0...</font></div>
<div><font face="monospace, monospace">cabal: At least the
following dependencies are missing:</font></div>
<div><font face="monospace, monospace">base ==4.7.*</font></div>
<div><font face="monospace, monospace">bash-3.2$ cabal
build</font></div>
<div><font face="monospace, monospace">cabal: You need to re-run
the 'configure' command. The version of Cabal being</font></div>
<div><font face="monospace, monospace">used has changed (was
Cabal-1.20.0.1, now Cabal-1.16.0).</font></div>
<div><font face="monospace, monospace">bash-3.2$ ls -l</font></div>
<div><font face="monospace, monospace">total 112</font></div>
<div><font face="monospace, monospace">-rw-r--r-- 1
seancharles staff 19 Mar 2 12:53
LICENCSE</font></div>
<div><font face="monospace, monospace">-rw-r--r-- 1
seancharles staff 552 Mar 3 20:09
Main.hs</font></div>
<div><font face="monospace, monospace">-rw-r--r-- 1
seancharles staff 477 Mar 3 20:07
Main.hs~</font></div>
<div><font face="monospace, monospace">-rw-r--r-- 1
seancharles staff 46 Mar 2 12:52
Setup.hs</font></div>
<div><font face="monospace, monospace">-rw-r--r-- 1
seancharles staff 30198 Mar 2 12:51
cabal.config</font></div>
<div><font face="monospace, monospace">-rw-r--r-- 1
seancharles staff 1090 Mar 2 12:51
cabal.sandbox.config</font></div>
<div><font face="monospace, monospace">drwxr-xr-x 5
seancharles staff 170 Mar 2 12:53
dist</font></div>
<div><font face="monospace, monospace">-rw-r--r-- 1
seancharles staff 1932 Mar 2 12:52
lts1.cabal</font></div>
<div><font face="monospace, monospace">bash-3.2$ </font></div>
</div>
<div><br></div>
<div>So, welcome to a different kind of hell, "cabal version hell"
perhaps?</div>
<div><br></div>
<div>Can anybody help me get it running again?</div>
<div>Thanks.</div>
<div>Sean.</div>
<div><br></div>
</div>
</blockquote>
</div>
<br></div>
</div>
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