Lemmih wrote:

On 7/18/05, yin wrote:

...

Hello,

I'm trying to write a 3D renderer in Haskell using SDL bindings (Lemmih) and OpenGL bindings. When I try to compile my work, ghc runs collect2:

I just rerun collect2 by hand without pre /usr/lib parameter, and it works. What have I to do or where have to look in to find and resolve the problem? I use Gentoo 2005.0 and SDL binding from SDLStable brach installed by hand (I didn't use Portage).

How did you invoke GHC?

Yes, I did (I sad it).

How did you install the SDL binding?

$ cd ~/SDLStable/src/Core $ runhaskell Setup.lhs configure --prefix=~/SDLstable_img/ $ runhaskell Setup.lhs build $ su Password: # runhaskell Setup.lhs install

What does 'ghc-pkg describe SDL' say?

See atachment. Thanks, you're fast! Matej 'Yin' Gagyi name: SDL version: 0.2.0 license: BSD3 copyright: 2004-2005, Lemmih maintainer: Lemmih (lemmih@gmail.com) stability: homepage: package-url: description: category: Foreign binding author: Lemmih (lemmih@gmail.com) exposed: True exposed-modules: Graphics.UI.SDL Graphics.UI.SDL.CPUInfo Graphics.UI.SDL.General Graphics.UI.SDL.Video Graphics.UI.SDL.WindowManagement Graphics.UI.SDL.Audio Graphics.UI.SDL.AudioSpec Graphics.UI.SDL.Events Graphics.UI.SDL.Time Graphics.UI.SDL.Keysym Graphics.UI.SDL.Color Graphics.UI.SDL.RWOps Graphics.UI.SDL.Types Graphics.UI.SDL.Rect Graphics.UI.SDL.Utilities Graphics.UI.SDL.Version Graphics.UI.SDL.Joystick hidden-modules: import-dirs: /home/yin/devel/third/sdlh/SDLstable/img/lib/SDL-0.2.0 library-dirs: /home/yin/devel/third/sdlh/SDLstable/img/lib/SDL-0.2.0 hs-libraries: HSSDL-0.2.0 extra-libraries: include-dirs: includes: SDL.h depends: base-1.0 hugs-options: cc-options: -I/usr/include/SDL -D_REENTRANT ld-options: -L/usr/lib -Wl -rpath /usr/lib -lSDL framework-dirs: frameworks: haddock-interfaces: haddock-html:

Lemmih wrote:

On 7/18/05, yin wrote:

...

Lemmih wrote:

...

On 7/18/05, yin wrote:

...

Hello,

I'm trying to write a 3D renderer in Haskell using SDL bindings (Lemmih) and OpenGL bindings. When I try to compile my work, ghc runs collect2:

I just rerun collect2 by hand without pre /usr/lib parameter, and it works. What have I to do or where have to look in to find and resolve the problem? I use Gentoo 2005.0 and SDL binding from SDLStable brach installed by hand (I didn't use Portage).

How did you invoke GHC?

Yes, I did (I sad it).

I mean, what command line gave that error message?

I'm sorry, I'm an idiot: $ ghc --make Main.hs I compiling your Haskell + SDL + OpenGL example from haskell wiki and my modifications (big modifications).

...

...

What does 'ghc-pkg describe SDL' say?

See atachment.

Thanks, you're fast!

Matej 'Yin' Gagyi

name: SDL version: 0.2.0 license: BSD3 copyright: 2004-2005, Lemmih maintainer: Lemmih (lemmih@gmail.com) stability: homepage: package-url: description: category: Foreign binding author: Lemmih (lemmih@gmail.com) exposed: True exposed-modules: Graphics.UI.SDL Graphics.UI.SDL.CPUInfo Graphics.UI.SDL.General Graphics.UI.SDL.Video Graphics.UI.SDL.WindowManagement Graphics.UI.SDL.Audio Graphics.UI.SDL.AudioSpec Graphics.UI.SDL.Events Graphics.UI.SDL.Time Graphics.UI.SDL.Keysym Graphics.UI.SDL.Color Graphics.UI.SDL.RWOps Graphics.UI.SDL.Types Graphics.UI.SDL.Rect Graphics.UI.SDL.Utilities Graphics.UI.SDL.Version Graphics.UI.SDL.Joystick hidden-modules: import-dirs: /home/yin/devel/third/sdlh/SDLstable/img/lib/SDL-0.2.0 library-dirs: /home/yin/devel/third/sdlh/SDLstable/img/lib/SDL-0.2.0 hs-libraries: HSSDL-0.2.0 extra-libraries: include-dirs: includes: SDL.h depends: base-1.0 hugs-options: cc-options: -I/usr/include/SDL -D_REENTRANT ld-options: -L/usr/lib -Wl -rpath /usr/lib -lSDL

Hmm, looks like GHC is having issues with -rpath. I'm not sure how to solve this correctly but one solution would be to remove it from your package.conf file.

Problem solved. Thank you! Now you have to find a way to correct the problem in your distribution. Maybe, I can help you with long-time-low-priority work around SDL... do you have some work for my? I'm "haskell freshmen" and I need some real-work. Thank you, one more time. Matej 'Yin' Gagyi

On 7/20/05, Sven Panne wrote:

Am Montag, 18. Juli 2005 18:46 schrieb yin:

...

[...] ld-options: -L/usr/lib -Wl -rpath /usr/lib -lSDL

This looks a bit suspicious: The syntax for ld options is "-rpath DIR", so the option for gcc should be "-Wl,-rpath,DIR". Ugly, but I didn't invent that. :-) Furthermore, I've never seen a Linux/*nix system where the (dynamic) linker doesn't look into /usr/lib, so probably the best way is to simply use:

ld-options: -lSDL

In addition, the -rpath option can be a bit surprising for the user of the executable later, depending on OS/platform peculiarities.

'sdl-config' is used to set 'ld-options'. Hard coding it is not an option. -- Friendly, Lemmih