Re: [arch-haskell] ghc-vis

On Thu, Oct 15, 2015 at 02:14:29PM -0600, stef204 wrote:

15.10.2015, 04:26, "Magnus Therning" : Magnus,

Comment: while I haven't yet had success with it in installing the packages targeted (hopefully this will happen after this post), cblrepo looks like great work.

Back to issue at hand, inline below.

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1. clone https://github.com/archhaskell/habs/ 2. install `cblrepo` from [haskell-core] 3. run `cblrepo sync` 4. move into the `habs` repo and run `cblrepo add ...` to add    packages (one or many at once) 5. run `cblrepo pkgbuild <pkgs>` to generate source packages for the    packages you added 6. build all packages, in order (you can use `cblrepo build` to generate    a good build order) 7. install your new packages

In addition to Barry's earlier comments re. ghc-vis and graphviz, the fact that ghc-vis seems to require ghc 7.8.3 and the following, I had to switch to a different package than ghc-vis since I am getting the following while trying to add ghc-vis' dependencies: % cat error.log Failed to satisfy the following dependencies for base: ghc-prim >=0.3.1 && <0.4 integer-simple >=0.1.1 && <0.2 Adding base 4.7.0.2 would break: QuickCheck : base >=4.8 && <5 cblrepo : base ==4.8.* xmonad-contrib : base >=4.8 && <5

I don't know how to deal with using a different base, I guess sandbox might be the right way, not sure.

Yes, the fact that it requires 7.8 is a deal-breaker for building on top of `[haskell-core]`, unfortunately.

So, at least for now, I switched to vacuum-opengl as an alternative to ghc-vis:

For vacuum-opengl, done steps 1 through 5 above, stuck on step 6.

Here is the PKGBUILD generated: https://gist.github.com/stef204/5220e94b58a5204e3265#file-pkgbuild

Question 1) When I added the dependencies to cblrebo.db, I used the *exact* version as specified for the package on hackage, so I used: cblrepo add package_name,exact version -> all the digits, so versions generated for PKGBUILD look a bit weird (to me) like "haskell-glut=2.7.0.2_0-4. Is this correct? (The "release" is just called "04"?)

Question 2) dependencies

depends=("ghc=7.10.2-1" "haskell-glut=2.7.0.2_0-4" "haskell-opengl=2.13.0.0_0-4" "haskell-bitmap=0.0.2_0-1" "haskell-bitmap-opengl=0.0.1.5_0-1" "haskell-network=2.6.2.1_0-3" "haskell-stb-image=0.2.1_0-1" "haskell-vacuum=2.2.0.0_0-1")

So, besides ghc-7.10.2-1, already installed obviously, haskell-glut and haskell-opengl both of which I found in the haskell-core repo, it seems I need to go through the same 1-7 steps for each missing individual packages haskell-{bitmap, bitmap-opengl, network, stb-image, vacuum} one at a time, correct?

First, I thought I'd pushed up a version of `cblrepo` that generated files with a dependency on "7.10.2-2" (the one from `[haskell-core]`), but apparently I didn't get around to it yet. Until I do please use `--ghc-release 2` to generate the proper dependency on ghc. You only need to go through the steps above for the packages you need to add.

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I'd start with `stack unpack ghc-vis`, then `stack init --resolver ghc-7.8` and see where that leads.

here, I get a failure error message on stack build after having run stack setup.

ghc.mk:901: recipe for target 'install_packages' failed make[1]: *** [install_packages] Error 127 Makefile:24: recipe for target 'install' failed make: *** [install] Error 2

I just did that exercise now and it seems to have worked fine. These are the steps I took % stack unpack ghc-vis % cd ghc-vis-0.7.2.7 % stack init --resolver ghc-7.8 % echo 'system-ghc: false' >> stack.yaml % stack solver --modify-stack-yaml % sudo pacman -S ghtk2hs-buildtools % stack --install-ghc build (Yes, it seems to be all right to use the gtk2hs-buildtools from `[haskell-core]`.) My guess though is that ghc-vis won't actually be usable in anything but ghci from ghc-7.8.4, which I suppose means it's of rather limited value. /M -- Magnus Therning OpenPGP: 0xAB4DFBA4 email: magnus@therning.org jabber: magnus@therning.org twitter: magthe http://therning.org/magnus Do not meddle in the affairs of Wizards, for they are subtle and quick to anger. -- J.R.R Tolkien