Re: [HOpenGL] Re: Linker Errors For OpenGL / GLUT 'Hello World' Program

Hello Clifford, Thank you for the quick reply. I was able to get a test C program that draws a triangle with GLUT to work: gcc -lglut triangle.o -o triangle.exe However, when building the Haskell GLUT 'Hello World' it uses, -lGLU to link GLUT, but that does not work; however, from the config.log output configure seems to think that -lGL should work. Is there a way I can change the build to use -lglut? Maybe with configure I can specify that -lglut is the correct way to link the GLUT libraries? Thank you! __ Donnie On Sat, Sep 20, 2008 at 3:42 PM, Clifford Beshers < clifford.beshers@gmail.com> wrote:

It works for me. I'm running Ubuntu Hardy with some packages built by us at SeeReason (see debs.seereason.com).

It looks like ghc can't find your glut libraries (not the Haskell wrappers, but the real GLUT libs). Try 'ghc -v --make ' and look at the linking lines and see what GHC is specifying (mine shows a -lglut). Try compiling an example C program against GLUT and see if that works.

My package list looks like this:

beshers@blue:~/haskell$ dpkg -l \*glut\* Desired=Unknown/Install/Remove/Purge/Hold | Status=Not/Installed/Config-f/Unpacked/Failed-cfg/Half-inst/t-aWait/T-pend |/ Err?=(none)/Hold/Reinst-required/X=both-problems (Status,Err: uppercase=bad) ||/ Name Version Description

+++-==============-==============-============================================ un freeglut-dev <none> (no description available) ii freeglut3 2.4.0-6 OpenGL Utility Toolkit ii freeglut3-dev 2.4.0-6 OpenGL Utility Toolkit development files un glut-doc <none> (no description available) un glutg3 <none> (no description available) un glutg3-dev <none> (no description available) ii libghc6-glut-d 2.1.1.1-2+3see Haskell GLUT binding for GHC un libghc6-glut-d <none> (no description available) un libghc6-glut-p <none> (no description available) un libglut <none> (no description available) un libglut-dev <none> (no description available) pn libglut3 <none> (no description available) un libglut3-dev <none> (no description available)

On Sat, Sep 20, 2008 at 12:10 PM, Donnie Jones wrote:

...

http://www.haskell.org/pipermail/haskell-cafe/2008-September/047357.html http://www.haskell.org/pipermail/haskell-cafe/2008-September/047357.html

Fixed link. __ Donnie

On Sat, Sep 20, 2008 at 3:08 PM, Donnie Jones wrote:

...

Hello,

I am having linker errors when trying the Haskell OpenGL / GLUT 'Hello World' program. Please see my thread that was first posted on Haskell-cafe mailing list. [Haskell-cafe] Linker Errors For OpenGL / GLUT 'Hello World' Program: http://www.haskell.org/pipermail/haskell-cafe/2008-September/047357.htmlAny help would be greatly appreciated. :) Thank you. __ Donnie

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