Cabal, Time & GHC 6.10.2
I get
dom@linux-6ofq:~/asn1> runghc Setup.hs configure Configuring PER-0.0.20... Setup.hs: At least the following dependencies are missing: time -any && -any
but I have time
dom@linux-6ofq:~/asn1> ghc-pkg list | grep time old-locale-1.0.0.1, old-time-1.0.0.2, packedstring-0.1.0.1, time-1.1.2.4
I think I can see why cabal isn't finding it:
ghc-pkg dump --global | grep time-1.1.2.4
finds nothing and I believe that is what cabal uses to find things. What's not clear is what I do to fix things. Go back to 6.10.1? Thanks, Dominic.
dom@linux-6ofq:~/asn1> ghc --version The Glorious Glasgow Haskell Compilation System, version 6.10.2 dom@linux-6ofq:~/asn1> ghc-pkg --version GHC package manager version 6.10.2
Here's my .cabal file.
Name: PER Version: 0.0.20 License: BSD3 Author: Dominic Steinitz Maintainer: dominic.steinitz@blueyonder.co.uk Copyright: Dominic Steinitz 2003 - 2009 Stability: Alpha Category: Language Homepage: http://www.haskell.org/asn1 Synopsis: ASN.1 PER support for Haskell Description: A formal and executable specification of the Packed Encoding Rules (PER) for ASN.1 build-depends: binary-strict == 0.4.2, bytestring, mtl, containers, time, pretty, base build-type: custom
Exposed-Modules: Language.ASN1.PER.Integer Language.ASN1.PER.GenerateC
Executable: PERTest Main-Is: PERTest.hs
On Sun, 2009-05-17 at 09:17 +0100, Dominic Steinitz wrote:
I get
dom@linux-6ofq:~/asn1> runghc Setup.hs configure Configuring PER-0.0.20... Setup.hs: At least the following dependencies are missing: time -any && -any
but I have time
dom@linux-6ofq:~/asn1> ghc-pkg list | grep time old-locale-1.0.0.1, old-time-1.0.0.2, packedstring-0.1.0.1, time-1.1.2.4
I think I can see why cabal isn't finding it:
ghc-pkg dump --global | grep time-1.1.2.4
finds nothing and I believe that is what cabal uses to find things.
The default for "runghc Setup.hs configure" is --global, but the default for "cabal configure" is --user. So if you're using the "cabal" program to install packages, then you can also us it to configure other packages. If for you need to use the runghc Setup.hs interface (e.g. in some system build scripts) and you want it to pick up packages from the user package db then use the --user flag. If you're constantly having to use the runghc Setup.hs interface and doing per-user installs is a pain then you can set the default for the cabal program to be global installs in the cabal config file (~/.cabal/config). I'll add this issue to the FAQ, it come up enough. If anyone else reading would like to eliminate this FAQ, then implementing this ticket is the answer: suggest use of --user if configure fails with missing deps that are in the user db http://hackage.haskell.org/trac/hackage/ticket/384 Duncan
Duncan Coutts wrote:
On Sun, 2009-05-17 at 09:17 +0100, Dominic Steinitz wrote:
I get
dom@linux-6ofq:~/asn1> runghc Setup.hs configure Configuring PER-0.0.20... Setup.hs: At least the following dependencies are missing: time -any && -any but I have time
dom@linux-6ofq:~/asn1> ghc-pkg list | grep time old-locale-1.0.0.1, old-time-1.0.0.2, packedstring-0.1.0.1, time-1.1.2.4 I think I can see why cabal isn't finding it:
ghc-pkg dump --global | grep time-1.1.2.4 finds nothing and I believe that is what cabal uses to find things.
The default for "runghc Setup.hs configure" is --global, but the default for "cabal configure" is --user. So if you're using the "cabal" program to install packages, then you can also us it to configure other packages. If for you need to use the runghc Setup.hs interface (e.g. in some system build scripts) and you want it to pick up packages from the user package db then use the --user flag. If you're constantly having to use the runghc Setup.hs interface and doing per-user installs is a pain then you can set the default for the cabal program to be global installs in the cabal config file (~/.cabal/config).
I'll add this issue to the FAQ, it come up enough. If anyone else reading would like to eliminate this FAQ, then implementing this ticket is the answer:
suggest use of --user if configure fails with missing deps that are in the user db http://hackage.haskell.org/trac/hackage/ticket/384
Duncan
Duncan, Thanks very much. I'm happy to update the FAQ this weekend unless you have already done it. Dominic.
On Sun, 2009-05-24 at 12:04 +0100, Dominic Steinitz wrote:
I'll add this issue to the FAQ, it come up enough. If anyone else reading would like to eliminate this FAQ, then implementing this ticket is the answer:
suggest use of --user if configure fails with missing deps that are in the user db http://hackage.haskell.org/trac/hackage/ticket/384
Thanks very much. I'm happy to update the FAQ this weekend unless you have already done it.
Oh that'd be great. The Cabal website is managed as a darcs repo so just: darcs get http://haskell.org/cabal/ then edit the FAQ.markdown and run make to update the FAQ.html (uses pandoc). Then darcs send the patches to me or the cabal-devel mailing list. Duncan
participants (2)
-
Dominic Steinitz -
Duncan Coutts