* Fwd: Haskell and guix
[not found] <CAL1_im=LS5=yzRRG7aR3sOdROTZOpHXBsLdC7ffNz2K1m9Ggow@mail.gmail.com>
@ 2016-12-12 23:26 ` David Craven
2016-12-13 17:23 ` David Craven
0 siblings, 1 reply; 3+ messages in thread
From: David Craven @ 2016-12-12 23:26 UTC (permalink / raw)
To: help-guix
Hi!
Can someone explain to me how to build a Haskell package? Or put
differently, why am I getting this error message?
Package has never been configured. Configuring with default flags. If this
fails, please run configure manually.
cabal: Use of GHC's environment variable GHC_PACKAGE_PATH is incompatible with
Cabal. Use the flag --package-db to specify a package database (it can be used
multiple times).
Steps to reproduce are:
guix environment idris --ad-hoc cabal-install
cabal build
Also if we have a Haskell expert here,
what is the difference between runhaskell Setup.hs test and cabal test?
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: Haskell and guix
2016-12-12 23:26 ` Fwd: Haskell and guix David Craven
@ 2016-12-13 17:23 ` David Craven
2016-12-13 23:30 ` Ludovic Courtès
0 siblings, 1 reply; 3+ messages in thread
From: David Craven @ 2016-12-13 17:23 UTC (permalink / raw)
To: help-guix
So for future reference, to hack on a haskell package these are the steps:
guix environment haskell-package --ad-hoc cabal-install
unset GHC_PACKAGE_PATH
export GUIX_LD_WRAPPER_ALLOW_IMPURITIES=y
cabal update
cabal sandbox init
cabal install --only-dependencies --enable-tests
cabal build
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: Haskell and guix
2016-12-13 17:23 ` David Craven
@ 2016-12-13 23:30 ` Ludovic Courtès
0 siblings, 0 replies; 3+ messages in thread
From: Ludovic Courtès @ 2016-12-13 23:30 UTC (permalink / raw)
To: David Craven; +Cc: help-guix
David Craven <david@craven.ch> skribis:
> So for future reference, to hack on a haskell package these are the steps:
>
> guix environment haskell-package --ad-hoc cabal-install
> unset GHC_PACKAGE_PATH
> export GUIX_LD_WRAPPER_ALLOW_IMPURITIES=y
> cabal update
> cabal sandbox init
> cabal install --only-dependencies --enable-tests
> cabal build
Thanks for sharing!
Ludo’.
^ permalink raw reply [flat|nested] 3+ messages in thread
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[not found] <CAL1_im=LS5=yzRRG7aR3sOdROTZOpHXBsLdC7ffNz2K1m9Ggow@mail.gmail.com>
2016-12-12 23:26 ` Fwd: Haskell and guix David Craven
2016-12-13 17:23 ` David Craven
2016-12-13 23:30 ` Ludovic Courtès
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