[Chicken-hackers] Re: [Chicken-users] OpenGL on MinGW

[Brandon J. Van Every]

felix winkelmann wrote:
> On 9/24/06, Brandon J. Van Every <address@hidden> wrote:
>
> > - I modified the attached opengl.setup file to remove GLUT support.
> > GLUT is ancient.  The last official release of GLUT was in 1998, it is
> > unsupported, and the license does not allow modifications of the source
> > code to be distributed.  FreeGLUT is more recent, dating to 2005, but it
> > didn't compile on MinGW.  GLUT should not be assumed to be available or
> > maintained on all platforms.  As such, it needs to be moved to its 
> > own egg.
>
> I haved separated the opengl and glut functionality into two different 
> eggs.

Great!  I see the GLUT-less opengl.setup is in the egg repository.  
Unfortunately it still fails on MinGW:


 "E:\Program Files\Chicken\bin\csc" -feature compiling-extension gl.scm 
-s -O2
-d0 -L "-L/usr/X11R6/lib -L/usr/X11/lib -lGL -LX11"
'E:\Program' is not recognized as an internal or external command,
operable program or batch file.
make: Failed to make gl.so: shell invocation failed with non-zero return 
status
Error: shell invocation failed with non-zero return status
"\"E:\\Program Files\\Chicken\\bin\\csc\" -feature compiling-extension 
gl.scm -.
..
1


I belive this line is the problem:

((and (eq? (software-type) 'windows) (eq? (build-platform) 'cygwin))

The line in the file I posted, which actually works, is:

((eq? (software-type) 'windows)



I think mingw needs its own test and installation method.  If "-feature cygwin" 
works for MinGW, that strikes me as fortunate.



> > - the attached sdl-gears.scm demo (thanks again from Felix) will compile
> > with the following build command.  It then runs just fine, proving that
> > the opengl support works.
> >
> >   csc sdl-gears.scm -C `sdl-config --cflags` -L "`sdl-config --libs`"
> >
> > - the build fails with:
> >
> >   csc sdl-gears.scm -C "`sdl-config --cflags`" -L "`sdl-config --libs`"
> >
> > There is a problem with -C and quoting the resultant
> > -I/usr/local/include option.
>
> I'm somehow sceptical about your shell. Is this the MSYS shell?
> (does such a thing exist? I dunno nothin' about mingw, see)

Hm my MSYS is non-standard now.  I will see what happens on Cygwin.


Cheers,
Brandon Van Every