supernova1
December 11th, 2008, 10:35 PM
I am trying to start doing some OpenGL programming with glut. I have tried to compile many examples that I have found online, but get errors when compiling. I found an example at http://www.lighthouse3d.com/opengl/glut/index.php?2.
#include <GL/glut.h>
void renderScene(void) {
glClear(GL_COLOR_BUFFER_BIT);
glBegin(GL_TRIANGLES);
glVertex3f(-0.5,-0.5,0.0);
glVertex3f(0.5,0.0,0.0);
glVertex3f(0.0,0.5,0.0);
glEnd();
glFlush();
}
void main(int argc, char **argv) {
glutInit(&argc, argv);
glutInitDisplayMode(GLUT_DEPTH | GLUT_SINGLE | GLUT_RGBA);
glutInitWindowPosition(100,100);
glutInitWindowSize(320,320);
glutCreateWindow("3D Tech- GLUT Tutorial");
glutDisplayFunc(renderScene);
glutMainLoop();
}
When compiling this program, I get the following error:
david@david-desktop:~/programs/opengl/glut$ make main main.c
cc main.c -o main
main.c: In function ‘main’:
main.c:14: warning: return type of ‘main’ is not ‘int’
/tmp/ccUqtDiX.o: In function `renderScene':
main.c:(.text+0xa): undefined reference to `glClear'
main.c:(.text+0x14): undefined reference to `glBegin'
main.c:(.text+0x2c): undefined reference to `glVertex3f'
main.c:(.text+0x3f): undefined reference to `glVertex3f'
main.c:(.text+0x52): undefined reference to `glVertex3f'
main.c:(.text+0x57): undefined reference to `glEnd'
main.c:(.text+0x5c): undefined reference to `glFlush'
/tmp/ccUqtDiX.o: In function `main':
main.c:(.text+0x7a): undefined reference to `glutInit'
main.c:(.text+0x84): undefined reference to `glutInitDisplayMode'
main.c:(.text+0x93): undefined reference to `glutInitWindowPosition'
main.c:(.text+0xa2): undefined reference to `glutInitWindowSize'
main.c:(.text+0xac): undefined reference to `glutCreateWindow'
main.c:(.text+0xb6): undefined reference to `glutDisplayFunc'
main.c:(.text+0xbb): undefined reference to `glutMainLoop'
collect2: ld returned 1 exit status
make: *** [main] Error 1
I get similar errors when trying to compile other examples I find online. It appears that none of the glut functions are working. Does anyone have any suggestions?
Thanks,
Supernova
#include <GL/glut.h>
void renderScene(void) {
glClear(GL_COLOR_BUFFER_BIT);
glBegin(GL_TRIANGLES);
glVertex3f(-0.5,-0.5,0.0);
glVertex3f(0.5,0.0,0.0);
glVertex3f(0.0,0.5,0.0);
glEnd();
glFlush();
}
void main(int argc, char **argv) {
glutInit(&argc, argv);
glutInitDisplayMode(GLUT_DEPTH | GLUT_SINGLE | GLUT_RGBA);
glutInitWindowPosition(100,100);
glutInitWindowSize(320,320);
glutCreateWindow("3D Tech- GLUT Tutorial");
glutDisplayFunc(renderScene);
glutMainLoop();
}
When compiling this program, I get the following error:
david@david-desktop:~/programs/opengl/glut$ make main main.c
cc main.c -o main
main.c: In function ‘main’:
main.c:14: warning: return type of ‘main’ is not ‘int’
/tmp/ccUqtDiX.o: In function `renderScene':
main.c:(.text+0xa): undefined reference to `glClear'
main.c:(.text+0x14): undefined reference to `glBegin'
main.c:(.text+0x2c): undefined reference to `glVertex3f'
main.c:(.text+0x3f): undefined reference to `glVertex3f'
main.c:(.text+0x52): undefined reference to `glVertex3f'
main.c:(.text+0x57): undefined reference to `glEnd'
main.c:(.text+0x5c): undefined reference to `glFlush'
/tmp/ccUqtDiX.o: In function `main':
main.c:(.text+0x7a): undefined reference to `glutInit'
main.c:(.text+0x84): undefined reference to `glutInitDisplayMode'
main.c:(.text+0x93): undefined reference to `glutInitWindowPosition'
main.c:(.text+0xa2): undefined reference to `glutInitWindowSize'
main.c:(.text+0xac): undefined reference to `glutCreateWindow'
main.c:(.text+0xb6): undefined reference to `glutDisplayFunc'
main.c:(.text+0xbb): undefined reference to `glutMainLoop'
collect2: ld returned 1 exit status
make: *** [main] Error 1
I get similar errors when trying to compile other examples I find online. It appears that none of the glut functions are working. Does anyone have any suggestions?
Thanks,
Supernova