Re: [Haskell-cafe] Mystified by Cabal
On Mon, 2009-03-09 at 17:56 -0700, John Meacham wrote: On Sun, Mar 08, 2009 at 01:13:33PM +0100, Svein Ove Aas wrote: On Sun, Mar 8, 2009 at 12:32 PM, Duncan Coutts duncan.cou...@worc.ox.ac.uk wrote: Note also that the list of licenses mkcabal offers is wrong. You can get the list from the Cabal lib itself so there is no need to maintain the list manually. It would also be nice to expand that list somewhat, to at least cover the most used licences - GPL2, GPL3, AGPL, etc. Why would cabal need a list at all inside of it? It seems very odd to have to upgrade cabal just because I am using a different license. it seems that we should just bite the bullet and switch data License to newtype License = License String and simplify a lot of code to boot as well as create a normalized data layout. Because it was not that way initially and changing away to something more sensible takes time so that we do not cause unnecessary breakage. Now it does allow any string at all. There are however a list of well known licenses and the point of that is so that we can collectively use the same name for the same thing. There's nothing however stopping you from using a custom license. At the moment you cannot give a name in the .cabal file to that custom license and upload it to hackage and I think that's what you're getting at. If everyone agrees that's the way to go then we can certainly change it. The hard part was phasing out the fragile parser. We are now half way through that cycle. When we no longer care about users of ghc-6.8 then we can make use of the extra flexibility. Duncan ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] Mystified by Cabal
On Sun, Mar 08, 2009 at 01:13:33PM +0100, Svein Ove Aas wrote: On Sun, Mar 8, 2009 at 12:32 PM, Duncan Coutts duncan.cou...@worc.ox.ac.uk wrote: Note also that the list of licenses mkcabal offers is wrong. You can get the list from the Cabal lib itself so there is no need to maintain the list manually. It would also be nice to expand that list somewhat, to at least cover the most used licences - GPL2, GPL3, AGPL, etc. Why would cabal need a list at all inside of it? It seems very odd to have to upgrade cabal just because I am using a different license. it seems that we should just bite the bullet and switch data License to newtype License = License String and simplify a lot of code to boot as well as create a normalized data layout. John -- John Meacham - ⑆repetae.net⑆john⑈ ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] Mystified by Cabal
On Sat, 2009-03-07 at 17:30 +, Colin Paul Adams wrote: Svein == Svein Ove Aas svein@aas.no writes: Preprocessing library game-tree-1.0.0.0... Building game-tree-1.0.0.0... Data/Tree/Game/Negascout.hs:31:0: Unrecognised pragma [1 of 2] Compiling Data.Tree.Game.Tree ( Data/Tree/Game/Tree.hs, dist/build/Data/Tree/Game/Tree.o ) Data/Tree/Game/Tree.hs:1:0:Failed to load interface for `Prelude': it is a member of package base-3.0.3.0, which is hidden Svein What does your .cabal file look like? Don, mkcabal is generating .cabal files that are confusing people. It should generate new-style .cabal files with library or executable sections. The ghc-options and build-depends etc need to be in the lib or exe section. The files it generates are not actually broken but it leaves new users to do the conversion from old style to new and unsurprisingly many get that wrong. Cabal is also at fault here for not providing good diagnostics but it would help if mkcabal used the current recommended style. Note also that the list of licenses mkcabal offers is wrong. You can get the list from the Cabal lib itself so there is no need to maintain the list manually. I still think mkcabal should be integrated into cabal-install, like: $ cabal init or something. We could also more easily keep it up to date that way. Duncan ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] Mystified by Cabal
On Sun, Mar 8, 2009 at 12:32 PM, Duncan Coutts duncan.cou...@worc.ox.ac.uk wrote: Note also that the list of licenses mkcabal offers is wrong. You can get the list from the Cabal lib itself so there is no need to maintain the list manually. It would also be nice to expand that list somewhat, to at least cover the most used licences - GPL2, GPL3, AGPL, etc. -- Svein Ove Aas ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] Mystified by Cabal
On Sun, 2009-03-08 at 13:13 +0100, Svein Ove Aas wrote: On Sun, Mar 8, 2009 at 12:32 PM, Duncan Coutts duncan.cou...@worc.ox.ac.uk wrote: Note also that the list of licenses mkcabal offers is wrong. You can get the list from the Cabal lib itself so there is no need to maintain the list manually. It would also be nice to expand that list somewhat, to at least cover the most used licences - GPL2, GPL3, AGPL, etc. Cabal HEAD adds MIT and versioned GPL and LGPL. We could not change it much earlier because old Cabal versions (ie 1.2 and earlier) would have barfed on parsing names it did not recognise. Duncan ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] Mystified by Cabal
duncan.coutts: On Sat, 2009-03-07 at 17:30 +, Colin Paul Adams wrote: Svein == Svein Ove Aas svein@aas.no writes: Preprocessing library game-tree-1.0.0.0... Building game-tree-1.0.0.0... Data/Tree/Game/Negascout.hs:31:0: Unrecognised pragma [1 of 2] Compiling Data.Tree.Game.Tree ( Data/Tree/Game/Tree.hs, dist/build/Data/Tree/Game/Tree.o ) Data/Tree/Game/Tree.hs:1:0:Failed to load interface for `Prelude': it is a member of package base-3.0.3.0, which is hidden Svein What does your .cabal file look like? Don, mkcabal is generating .cabal files that are confusing people. It should generate new-style .cabal files with library or executable sections. The ghc-options and build-depends etc need to be in the lib or exe section. The files it generates are not actually broken but it leaves new users to do the conversion from old style to new and unsurprisingly many get that wrong. Cabal is also at fault here for not providing good diagnostics but it would help if mkcabal used the current recommended style. Note also that the list of licenses mkcabal offers is wrong. You can get the list from the Cabal lib itself so there is no need to maintain the list manually. I still think mkcabal should be integrated into cabal-install, like: $ cabal init or something. We could also more easily keep it up to date that way. mkcabal is unmaintained. -- Don ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] Mystified by Cabal
On Sat, Mar 7, 2009 at 6:18 PM, Colin Paul Adams co...@colina.demon.co.uk wrote: I have just attempted Cabal-izing my program (splitting it into a library and main program as well), and I'm mystified by some problems I am having. First, when I try to build the library I get: [co...@susannah game-tree]$ runhaskell Setup build Preprocessing library game-tree-1.0.0.0... Building game-tree-1.0.0.0... Data/Tree/Game/Negascout.hs:31:0: Unrecognised pragma [1 of 2] Compiling Data.Tree.Game.Tree ( Data/Tree/Game/Tree.hs, dist/build/Data/Tree/Game/Tree.o ) Data/Tree/Game/Tree.hs:1:0: Failed to load interface for `Prelude': it is a member of package base-3.0.3.0, which is hidden What does your .cabal file look like? Perhaps Cabal should be named Caballa instead. Nah, it's not /that/ bad. :P You might want to install the mkcabal package, use that to generate the initial .cabal file. Though I'm not sure what you might have gotten wrong.. well, show us the file first. - Svein Ove ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] Mystified by Cabal
Svein == Svein Ove Aas svein@aas.no writes: Preprocessing library game-tree-1.0.0.0... Building game-tree-1.0.0.0... Data/Tree/Game/Negascout.hs:31:0: Unrecognised pragma [1 of 2] Compiling Data.Tree.Game.Tree ( Data/Tree/Game/Tree.hs, dist/build/Data/Tree/Game/Tree.o ) Data/Tree/Game/Tree.hs:1:0: Failed to load interface for `Prelude': it is a member of package base-3.0.3.0, which is hidden Svein What does your .cabal file look like? name:game-tree version: 1.0.0.0 cabal-version: = 1.6 synopsis:Searching game trees with alpha-beta pruning description: A data type for game trees, as used in decision theory and game theory, along with standard algorithms for searching the tree using alpha-beta pruning. Can be used as the basis of an AI for two-player zero-sum games, such as chess. category:Data license: GPL license-file:LICENSE author: Colin Adams maintainer: co...@colina.demon.co.uk copyright: Copyright: 2009 Colin Adams build-type: Simple build-depends: base = 4 ghc-options: -Wall -fno-warn-unrecognised-pragmas Library exposed-modules: Data.Tree.Game.Tree, Data.Tree.Game.Negascout source-repository head type: darcs location: http://code.haskell.org/game-tree/ -- Colin Adams Preston Lancashire ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] Mystified by Cabal
On Sat, 07 Mar 2009 17:30:43 + Colin Paul Adams co...@colina.demon.co.uk wrote: Svein == Svein Ove Aas svein@aas.no writes: Preprocessing library game-tree-1.0.0.0... Building game-tree-1.0.0.0... Data/Tree/Game/Negascout.hs:31:0: Unrecognised pragma [1 of 2] Compiling Data.Tree.Game.Tree ( Data/Tree/Game/Tree.hs, dist/build/Data/Tree/Game/Tree.o ) Data/Tree/Game/Tree.hs:1:0: Failed to load interface for `Prelude': it is a member of package base-3.0.3.0, which is hidden Svein What does your .cabal file look like? name:game-tree version: 1.0.0.0 cabal-version: = 1.6 synopsis:Searching game trees with alpha-beta pruning description: A data type for game trees, as used in decision theory and game theory, along with standard algorithms for searching the tree using alpha-beta pruning. Can be used as the basis of an AI for two-player zero-sum games, such as chess. category: Data license: GPL license-file:LICENSE author: Colin Adams maintainer: co...@colina.demon.co.uk copyright: Copyright: 2009 Colin Adams build-type: Simple build-depends: base = 4 ghc-options: -Wall -fno-warn-unrecognised-pragmas Library exposed-modules: Data.Tree.Game.Tree, Data.Tree.Game.Negascout source-repository head type: darcs location: http://code.haskell.org/game-tree/ The build-depends line needs to go in the Library section, I think. It doesn't seem to be having any effect in its current location. Likewise for ghc-options. -- Robin ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] Mystified by Cabal
Robin == Robin Green gree...@greenrd.org writes: Robin The build-depends line needs to go in the Library section, Robin I think. It doesn't seem to be having any effect in its Robin current location. Likewise for ghc-options. Thanks everyone - it's working now. -- Colin Adams Preston Lancashire ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] Mystified by Cabal
colin: I have just attempted Cabal-izing my program (splitting it into a library and main program as well), and I'm mystified by some problems I am having. First, when I try to build the library I get: [co...@susannah game-tree]$ runhaskell Setup build Preprocessing library game-tree-1.0.0.0... Building game-tree-1.0.0.0... Data/Tree/Game/Negascout.hs:31:0: Unrecognised pragma [1 of 2] Compiling Data.Tree.Game.Tree ( Data/Tree/Game/Tree.hs, dist/build/Data/Tree/Game/Tree.o ) Data/Tree/Game/Tree.hs:1:0: Failed to load interface for `Prelude': it is a member of package base-3.0.3.0, which is hidden build-depends: base You certainly depend on the base library, unless you're doing only haskell98 work. ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
