<div dir="ltr"><div class="gmail_default" style="font-family:"comic sans ms",sans-serif;font-size:small">Thank you for that. After downgrading alex I was able to build ghc properly.</div><div class="gmail_default" style="font-family:"comic sans ms",sans-serif;font-size:small"><br></div><div class="gmail_default" style="font-family:"comic sans ms",sans-serif;font-size:small">By the way, is there a way from cabal to uninstall a package? I actually had both versions of alex on my machine but somehow ghc would always pick up the latest one. I couldn't find a way to uninstall alex, so I just gave up and removed the entire cabal directory and reinstalled everything (which fortunately wasn't much) plus the old version of alex.</div><div class="gmail_default" style="font-family:"comic sans ms",sans-serif;font-size:small"><br></div><div class="gmail_default" style="font-family:"comic sans ms",sans-serif;font-size:small">Neo</div><div class="gmail_default" style="font-family:"comic sans ms",sans-serif;font-size:small"><br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Wed, Dec 23, 2020 at 9:12 PM John Ericson <john.ericson@obsidian.systems> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div>
<p>Actually, your alex is <i>too</i> new. See
<a href="https://gitlab.haskell.org/ghc/ghc/-/merge_requests/4657" target="_blank">https://gitlab.haskell.org/ghc/ghc/-/merge_requests/4657</a>. If you
take the latest master, it will contain that, and your problem
will be fixed.<br>
</p>
<div>On 12/23/20 2:10 PM, Richard Eisenberg
wrote:<br>
</div>
<blockquote type="cite">
Without having particular knowledge about this specific error: try
upgrading `alex`, the tool that GHC uses to produce its lexer.
It's possible a newer version of that tool will fix this problem.
<div><br>
</div>
<div>Richard<br>
<div><br>
<blockquote type="cite">
<div>On Dec 23, 2020, at 1:37 PM, Neophytos Michael
<<a href="mailto:nmichael@gmail.com" target="_blank">nmichael@gmail.com</a>> wrote:</div>
<br>
<div>
<div dir="ltr">
<div class="gmail_default" style="font-family:"comic sans ms",sans-serif;font-size:small">I am having some
trouble building ghc on ubuntu. I have ghc 8.8.4
installed on the machine. I pulled from the main
repository and followed the instructions here: <a href="https://gitlab.haskell.org/ghc/ghc/-/wikis/building/hadrian" target="_blank">https://gitlab.haskell.org/ghc/ghc/-/wikis/building/hadrian</a></div>
<div class="gmail_default" style="font-family:"comic sans ms",sans-serif;font-size:small"><br>
</div>
<div class="gmail_default" style="font-family:"comic sans ms",sans-serif;font-size:small">Building with:</div>
<div class="gmail_default" style="font-family:"comic sans ms",sans-serif;font-size:small">./hadrian/build -j<br>
</div>
<div class="gmail_default" style="font-family:"comic sans ms",sans-serif;font-size:small"><br>
</div>
<div class="gmail_default" style="font-family:"comic sans ms",sans-serif;font-size:small">it builds for a long
time until it finally fails with the message below. I
would appreciate some advice on how to fix this.</div>
<div class="gmail_default" style="font-family:"comic sans ms",sans-serif;font-size:small"><br>
</div>
<div class="gmail_default" style="font-family:"comic sans ms",sans-serif;font-size:small">Thank you,</div>
<div class="gmail_default" style="font-family:"comic sans ms",sans-serif;font-size:small">Neo</div>
<div class="gmail_default" style="font-family:"comic sans ms",sans-serif;font-size:small"><br>
</div>
<div class="gmail_default" style="font-size:small"><span></span><font face="monospace">===========================</font></div>
<div class="gmail_default"><font face="monospace">Exit code: 1<br>
Stderr and Stdout:<br>
_build/stage1/compiler/build/GHC/Parser/Lexer.hs:3495:3: error:<br>
Variable not in scope: int16ToInt# :: Int# ->
Int#<br>
|<br>
3495 | int16ToInt#<br>
| ^^^^^^^^^^^<br>
<br>
_build/stage1/compiler/build/GHC/Parser/Lexer.hs:3520:3: error:<br>
Variable not in scope: int32ToInt# :: Int# ->
Int#<br>
|<br>
3520 | int32ToInt#<br>
| ^^^^^^^^^^^<br>
</font></div>
<div class="gmail_default"><font face="monospace">===========================</font></div>
<div class="gmail_default">On that line (in
Lexer.hs) we see:</div>
<div class="gmail_default"><br>
</div>
<div class="gmail_default" style="font-size:small"><font face="monospace">#if __GLASGOW_HASKELL__
>= 901<br>
int16ToInt#<br>
#endif<br>
(indexInt16OffAddr# arr off)<br>
#endif<br>
</font></div>
<div class="gmail_default" style="font-family:"comic sans ms",sans-serif;font-size:small"><br>
</div>
<div class="gmail_default" style="font-family:"comic sans ms",sans-serif;font-size:small">so we are in the "then"
clause and somehow "int16ToInt#" is nowhere to be
found.</div>
<div><br>
</div>
-- <br>
<div dir="ltr">
<div dir="ltr"><font face="comic
sans ms, sans-serif">Neo<br>
</font>
<div><br>
</div>
</div>
</div>
</div>
_______________________________________________<br>
ghc-devs mailing list<br>
<a href="mailto:ghc-devs@haskell.org" target="_blank">ghc-devs@haskell.org</a><br>
<a href="http://mail.haskell.org/cgi-bin/mailman/listinfo/ghc-devs" target="_blank">http://mail.haskell.org/cgi-bin/mailman/listinfo/ghc-devs</a><br>
</div>
</blockquote>
</div>
<br>
</div>
<br>
<fieldset></fieldset>
<pre>_______________________________________________
ghc-devs mailing list
<a href="mailto:ghc-devs@haskell.org" target="_blank">ghc-devs@haskell.org</a>
<a href="http://mail.haskell.org/cgi-bin/mailman/listinfo/ghc-devs" target="_blank">http://mail.haskell.org/cgi-bin/mailman/listinfo/ghc-devs</a>
</pre>
</blockquote>
</div>
</blockquote></div><br clear="all"><div><br></div>-- <br><div dir="ltr" class="gmail_signature"><div dir="ltr"><font face="comic sans ms, sans-serif">Neophytos<br></font><div><br></div></div></div>