[fpc-pascal]once again opengl/glut error msg. (linux)
    Karim Forsthofer 
    kf at linuxmail.org
       
    Thu Apr 10 00:25:50 CEST 2003
    
    
  
Hello 
I wrote a new simple GLUT code , It call triangle.pp 
The code compiles fine, but when I whant to run it, I get this msg on the console :
/triangles: relocation error: /usr/lib/libglut.so.3: undefined symbol: glXQueryExtension
It seems that the glutlib use a glx function that is not supported or not reachable. 
By the way, I installled the new package from the freepascal website, with the GLU units etc. 
Is the code o.k ?(would be nice, if somebody could run it on a linux machine) 
Here is it : 
program triangle;
 
uses
  gl, glu, glut;
 
procedure init;
 
begin    
    glClearColor(0.0, 0.0, 0.0, 0.0);
    glColor3f(0.0, 0.0, 0.0);
    glMatrixMode(GL_PROJECTION);
    glLoadIdentity;
    gluPerspective(45.0, 23.0, 0.1, 100.0);
end;
 
 
procedure display;
 
begin 
    glClear(GL_COLOR_BUFFER_BIT);
    glBegin(GL_TRIANGLES);
          glVertex3f( 0.0, 1.0,-10.0);           
          glVertex3f(-1.0,-1.0,-10.0);
          glVertex3f( 1.0,-1.0,-10.0);
          glEnd;
    glutSwapBuffers;
 end;
 begin
    glutInitWindowSize(250,250);
    glutInitWindowPosition(100,200);
    glutCreateWindow('triangles');
    init;
    glutDisplayFunc(@ display);
    glutMainLoop;
 end.
-- 
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