[web-devel] Yesod-0.5.4 linking problem

Michael Snoyman michael at snoyman.com
Sun Oct 17 21:30:40 CEST 2010

Try upgrading wai-extra to the newest version (0.2.4), and let me know
if that solves it. Older versions linked against the zlib system
library directly, but now it goes through zlib-enumerator, which just
takes the functions from the zlib Haskell library. I believe having
the zlib library imported by both wai-extra and zlib-bindings is
causing the issue.


On Sun, Oct 17, 2010 at 6:42 PM, Max Cantor <mxcantor at gmail.com> wrote:
> Has anyone on the list had trouble building yesod-0.5.4?  I'm getting the same linker error as interferon described here:  http://hpaste.org/40633/
> I tried all the usual suspects.. cabal install --reinstall <every relevant package>
> Seems to be a conflict between zlib and zlib-bindings.
> Thanks,
> Max
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