SDL under ghc 7.8.2

[tbelaire]

It requires a slight fix, if anyone else encounters a problem installing with a recent ghc, here's how I fixed that problem.

File structure is something like

haskanoid-root/
|-> cabal.sandbox.config
\-> haskanoid/
      |->haskanoid.cabal
          .....

From haskanoid-root, (where you ran cabal sandbox init, also do cabal sdl unpack, to get something like:

haskanoid-root/
|-> cabal.sandbox.config
|-> SDL-0.6.5
\-> haskanoid/
      |->haskanoid.cabal
          .....

And edit Graphics/UI/SDL/Events.hsc line 56 to just be import Data.Typeable instead of being very selective in it's imports. Now you can cabal install from the SDL directory to get that dependency fixed.
You'll also need to bump up the base==4.6.* requirement in haskanoid.cabal`.

[ivanperez-keera]

Thanks!

It might be a good thing to open a ticket on SDL itself, since the typeable thing is their responsibility.

There's two pending tasks here: modify the readme to reflect these instructions, and change the cabal file.

[tbelaire]

I've fired the maintainer of SDL an email, since that's all I saw on Hackage.

Once a new SDL version is out, it'll be easy enough to bump version bounds to get haskanoid to compile, without needing any fancy instructions.

[listx]

I just followed @tbelaire's instructions and doing cabal install from where SDL is located resulted in installing to my system's cabal folder ~/.cabal. I fixed this by doing cabal sandbox add-source SDL-0.6.5 from haskanoid-root, which is actually just the git clone directory of haskanoid (this is because trying it from the hackage version resulted in the game not starting due to missing data files, giving the error message Some resources could not be loaded).

[Jks15063]

The instructions don't mention downloading SDL but the project doesn't seem to include it. Should I just download the latest version of sdl and copy it into the project directory?

[tbelaire]

cabal sdl unpack downloads the source code.

[Jks15063]

When I run cabal sdl unpack it replies: cabal: unrecognised command: sdl (try --help)

[tbelaire]

Err, I think I mean cabal unpack sdl, sorry.
On Oct 16, 2014, at 12:50 PM, Jake Sellers notifications@github.com wrote:

When I run cabal sdl unpack it replies: cabal: unrecognised command: sdl (try --help)

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[Jks15063]

OK, cabal unpack sdl works and I now see a SDL dir. However, after editing the Graphics file per your instructions and running cabal install in the root SDL dir, I see this error:

Resolving dependencies...
Configuring SDL-0.6.5...
Failed to install SDL-0.6.5
Build log ( /home/jake/.cabal/logs/SDL-0.6.5.log ):
Configuring SDL-0.6.5...
configure: WARNING: unrecognized options: --with-compiler, --with-gcc
checking for sdl-config... no
checking for sdl11-config... no
configure: error: *** SDL not found! Get SDL from www.libsdl.org.
If you already installed it, check it's in the path. If problem remains,
please send a mail to the address that appears in ./configure --version
indicating your platform, the version of configure script and the problem.
cabal: Error: some packages failed to install:
SDL-0.6.5 failed during the configure step. The exception was:
ExitFailure 1

I looked in the README in the SDL dir and tried running runhaskell Setup.lhs configure and received an almost identical error message.

Am I way off?

[tbelaire]

the Haskell sdl bindings require SDL to have been installed, as they are just translations to the C calls to the library.
On Oct 16, 2014, at 1:04 PM, Jake Sellers notifications@github.com wrote:

OK, cabal unpack sdl works and I now see a SDL dir. However, after editing the Graphics file per your instructions and running cabal install in the root SDL dir, I see this error:

Resolving dependencies...
Configuring SDL-0.6.5...
Failed to install SDL-0.6.5
Build log ( /home/jake/.cabal/logs/SDL-0.6.5.log ):
Configuring SDL-0.6.5...
configure: WARNING: unrecognized options: --with-compiler, --with-gcc
checking for sdl-config... no
checking for sdl11-config... no
configure: error: *** SDL not found! Get SDL from www.libsdl.org.
If you already installed it, check it's in the path. If problem remains,
please send a mail to the address that appears in ./configure --version
indicating your platform, the version of configure script and the problem.
cabal: Error: some packages failed to install:
SDL-0.6.5 failed during the configure step. The exception was:
ExitFailure 1

I looked in the README in the SDL dir and tried running runhaskell Setup.lhs configure and received an almost identical error message.

Am I way off?

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[Jks15063]

ok, getting real close. Got sdl installed and then ran into a bunch of missing dev libs so worked my way down the list installing them like this: sudo apt-get install libghc-foo-dev which worked for every except the wii lib. I ran sudo apt-get install libghc-hcwiid-dev which executed succesfully, but I still get this error:

setup-Simple-Cabal-1.21.1.0-x86_64-linux-ghc-7.8.3: Missing dependencies on
foreign libraries:
* Missing (or bad) header file: cwiid.h
* Missing C libraries: bluetooth, cwiid
This problem can usually be solved by installing the system packages that
provide these libraries (you may need the "-dev" versions). If the libraries
are already installed but in a non-standard location then you can use the
flags --extra-include-dirs= and --extra-lib-dirs= to specify where they are.
If the header file does exist, it may contain errors that are caught by the C
compiler at the preprocessing stage. In this case you can re-run configure
with the verbosity flag -v3 to see the error messages.
cabal: Error: some packages failed to install:
hcwiid-0.0.5 failed during the configure step. The exception was:
ExitFailure 1

Is there a lib I'm still missing or a way to ignore the wii libs, I'm not trying to use a wii-mote anyway.
Sorry for all the questions and thanks for all the help already.

[codygman]

You don't want to mix installing Haskell packages and cabal packages I
don't think (someone correct me if I'm wrong).

I typically use apt-get build-dep on Haskell packages that require external
dependencies such as SDL.

When I get to a computer I'll post a command line log of installing
haskanoid on vanilla Ubuntu.
On Oct 16, 2014 2:44 PM, "Jake Sellers" notifications@github.com wrote:

ok, getting real close. Got sdl installed and then ran into a bunch of
missing dev libs so worked my way down the list installing them like this: sudo
apt-get install libghc-foo-dev which worked for every except the wii lib.
I ran sudo apt-get install libghc-hcwiid-dev which executed succesfully,
but I still get this error:

setup-Simple-Cabal-1.21.1.0-x86_64-linux-ghc-7.8.3: Missing dependencies on
foreign libraries:

• Missing (or bad) header file: cwiid.h
• Missing C libraries: bluetooth, cwiid
  This problem can usually be solved by installing the system packages that
  provide these libraries (you may need the "-dev" versions). If the libraries
  are already installed but in a non-standard location then you can use the
  flags --extra-include-dirs= and --extra-lib-dirs= to specify where they are.
  If the header file does exist, it may contain errors that are caught by the C
  compiler at the preprocessing stage. In this case you can re-run configure
  with the verbosity flag -v3 to see the error messages.
  cabal: Error: some packages failed to install:
  hcwiid-0.0.5 failed during the configure step. The exception was:
  ExitFailure 1

Is there a lib I'm still missing or a way to ignore the wii libs, I'm
trying to use a wii-mote anyway.
Sorry for all the questions and thanks for all the help already.

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#2 (comment)
.

[Jks15063]

That sounds great, thanks. Should I remove all of the libghc-... packages I installed?