C OpenGL Compiler Error?

Hey!

Recently I've been trying to compile some code with OpenGL with Dev-C++ 4. Dev-C++ can compile C, so I don't get it. I'm using GLUT.h, so that's the thing that is making it all messed up. When I compile anything, even using the test source code they give you, I get something like this:

Code:

---

C:\DOCUME~1\MATTMI~1\LOCALS~1\Temp\ccOcbaaa.o(.text+0x40e):spacem~1.c: undefined reference to `glutGet'
C:\DOCUME~1\MATTMI~1\LOCALS~1\Temp\ccOcbaaa.o(.text+0x436):spacem~1.c: undefined reference to `_imp__glBegin'
C:\DOCUME~1\MATTMI~1\LOCALS~1\Temp\ccOcbaaa.o(.text+0x450):spacem~1.c: undefined reference to `_imp__glColor3f'
C:\DOCUME~1\MATTMI~1\LOCALS~1\Temp\ccOcbaaa.o(.text+0x4d3):spacem~1.c: undefined reference to `_imp__glVertex2f'
C:\DOCUME~1\MATTMI~1\LOCALS~1\Temp\ccOcbaaa.o(.text+0x4e6):spacem~1.c: undefined reference to `_imp__glEnd'
C:\DOCUME~1\MATTMI~1\LOCALS~1\Temp\ccOcbaaa.o(.text+0x539):spacem~1.c: undefined reference to `_imp__glPushMatrix'
C:\DOCUME~1\MATTMI~1\LOCALS~1\Temp\ccOcbaaa.o(.text+0x55e):spacem~1.c: undefined reference to `_imp__glTranslatef'
C:\DOCUME~1\MATTMI~1\LOCALS~1\Temp\ccOcbaaa.o(.text+0x57b):spacem~1.c: undefined reference to `_imp__glRotatef'
C:\DOCUME~1\MATTMI~1\LOCALS~1\Temp\ccOcbaaa.o(.text+0x59f):spacem~1.c: undefined reference to `_imp__glColor3f'
C:\DOCUME~1\MATTMI~1\LOCALS~1\Temp\ccOcbaaa.o(.text+0x5af):spacem~1.c: undefined reference to `_imp__glBegin'
C:\DOCUME~1\MATTMI~1\LOCALS~1\Temp\ccOcbaaa.o(.text+0x5d5):spacem~1.c: undefined reference to `_imp__glVertex2f'
C:\DOCUME~1\MATTMI~1\LOCALS~1\Temp\ccOcbaaa.o(.text+0x5f1):spacem~1.c: undefined reference to `_imp__glVertex2f'
C:\DOCUME~1\MATTMI~1\LOCALS~1\Temp\ccOcbaaa.o(.text+0x617):spacem~1.c: undefined reference to `_imp__glVertex2f'
C:\DOCUME~1\MATTMI~1\LOCALS~1\Temp\ccOcbaaa.o(.text+0x622):spacem~1.c: undefined reference to `_imp__glEnd'
C:\DOCUME~1\MATTMI~1\LOCALS~1\Temp\ccOcbaaa.o(.text+0x639):spacem~1.c: undefined reference to `_imp__glColor3f'
C:\DOCUME~1\MATTMI~1\LOCALS~1\Temp\ccOcbaaa.o(.text+0x649):spacem~1.c: undefined reference to `_imp__glBegin'
C:\DOCUME~1\MATTMI~1\LOCALS~1\Temp\ccOcbaaa.o(.text+0x665):spacem~1.c: undefined reference to `_imp__glVertex2f'
C:\DOCUME~1\MATTMI~1\LOCALS~1\Temp\ccOcbaaa.o(.text+0x68b):spacem~1.c: undefined reference to `_imp__glVertex2f'
C:\DOCUME~1\MATTMI~1\LOCALS~1\Temp\ccOcbaaa.o(.text+0x6a7):spacem~1.c: undefined reference to `_imp__glVertex2f'
C:\DOCUME~1\MATTMI~1\LOCALS~1\Temp\ccOcbaaa.o(.text+0x6c6):spacem~1.c: undefined reference to `_imp__glVertex2f'
C:\DOCUME~1\MATTMI~1\LOCALS~1\Temp\ccOcbaaa.o(.text+0x6e2):spacem~1.c: undefined reference to `_imp__glVertex2f'
C:\DOCUME~1\MATTMI~1\LOCALS~1\Temp\ccOcbaaa.o(.text+0x6ed):spacem~1.c: undefined reference to `_imp__glEnd'
C:\DOCUME~1\MATTMI~1\LOCALS~1\Temp\ccOcbaaa.o(.text+0x722):spacem~1.c: undefined reference to `_imp__glColor3f'
C:\DOCUME~1\MATTMI~1\LOCALS~1\Temp\ccOcbaaa.o(.text+0x732):spacem~1.c: undefined reference to `_imp__glBegin'
C:\DOCUME~1\MATTMI~1\LOCALS~1\Temp\ccOcbaaa.o(.text+0x7e0):spacem~1.c: undefined reference to `_imp__glVertex2f'
C:\DOCUME~1\MATTMI~1\LOCALS~1\Temp\ccOcbaaa.o(.text+0x7fa):spacem~1.c: undefined reference to `_imp__glEnd'
C:\DOCUME~1\MATTMI~1\LOCALS~1\Temp\ccOcbaaa.o(.text+0x802):spacem~1.c: undefined reference to `_imp__glPopMatrix'
C:\DOCUME~1\MATTMI~1\LOCALS~1\Temp\ccOcbaaa.o(.text+0x821):spacem~1.c: undefined reference to `_imp__glClear'
C:\DOCUME~1\MATTMI~1\LOCALS~1\Temp\ccOcbaaa.o(.text+0x847):spacem~1.c: undefined reference to `glutSwapBuffers'
C:\DOCUME~1\MATTMI~1\LOCALS~1\Temp\ccOcbaaa.o(.text+0x887):spacem~1.c: undefined reference to `glutGet'
C:\DOCUME~1\MATTMI~1\LOCALS~1\Temp\ccOcbaaa.o(.text+0xac3):spacem~1.c: undefined reference to `glutPostWindowRedisplay'
C:\DOCUME~1\MATTMI~1\LOCALS~1\Temp\ccOcbaaa.o(.text+0xaea):spacem~1.c: undefined reference to `glutIdleFunc'
C:\DOCUME~1\MATTMI~1\LOCALS~1\Temp\ccOcbaaa.o(.text+0xaf9):spacem~1.c: undefined reference to `glutIdleFunc'
C:\DOCUME~1\MATTMI~1\LOCALS~1\Temp\ccOcbaaa.o(.text+0xcf5):spacem~1.c: undefined reference to `glutGet'
C:\DOCUME~1\MATTMI~1\LOCALS~1\Temp\ccOcbaaa.o(.text+0xd47):spacem~1.c: undefined reference to `glutSetCursor'
C:\DOCUME~1\MATTMI~1\LOCALS~1\Temp\ccOcbaaa.o(.text+0xd8d):spacem~1.c: undefined reference to `glutGameModeString'
C:\DOCUME~1\MATTMI~1\LOCALS~1\Temp\ccOcbaaa.o(.text+0xd95):spacem~1.c: undefined reference to `glutEnterGameMode'
C:\DOCUME~1\MATTMI~1\LOCALS~1\Temp\ccOcbaaa.o(.text+0xdac):spacem~1.c: undefined reference to `glutGameModeString'
C:\DOCUME~1\MATTMI~1\LOCALS~1\Temp\ccOcbaaa.o(.text+0xdb4):spacem~1.c: undefined reference to `glutEnterGameMode'
C:\DOCUME~1\MATTMI~1\LOCALS~1\Temp\ccOcbaaa.o(.text+0xdd7):spacem~1.c: undefined reference to `glutLeaveGameMode'
C:\DOCUME~1\MATTMI~1\LOCALS~1\Temp\ccOcbaaa.o(.text+0xe09):spacem~1.c: undefined reference to `glutIdleFunc'
C:\DOCUME~1\MATTMI~1\LOCALS~1\Temp\ccOcbaaa.o(.text+0xe1b):spacem~1.c: undefined reference to `glutIdleFunc'
C:\DOCUME~1\MATTMI~1\LOCALS~1\Temp\ccOcbaaa.o(.text+0xee6):spacem~1.c: undefined reference to `_imp__glBlendFunc'
C:\DOCUME~1\MATTMI~1\LOCALS~1\Temp\ccOcbaaa.o(.text+0xef9):spacem~1.c: undefined reference to `_imp__glEnable'
C:\DOCUME~1\MATTMI~1\LOCALS~1\Temp\ccOcbaaa.o(.text+0xf0c):spacem~1.c: undefined reference to `_imp__glEnable'
C:\DOCUME~1\MATTMI~1\LOCALS~1\Temp\ccOcbaaa.o(.text+0xf1f):spacem~1.c: undefined reference to `_imp__glEnable'
C:\DOCUME~1\MATTMI~1\LOCALS~1\Temp\ccOcbaaa.o(.text+0xf3a):spacem~1.c: undefined reference to `_imp__glDisable'
C:\DOCUME~1\MATTMI~1\LOCALS~1\Temp\ccOcbaaa.o(.text+0xf4d):spacem~1.c: undefined reference to `_imp__glDisable'
C:\DOCUME~1\MATTMI~1\LOCALS~1\Temp\ccOcbaaa.o(.text+0xf60):spacem~1.c: undefined reference to `_imp__glDisable'
C:\DOCUME~1\MATTMI~1\LOCALS~1\Temp\ccOcbaaa.o(.text+0xf83):spacem~1.c: undefined reference to `glutGet'
C:\DOCUME~1\MATTMI~1\LOCALS~1\Temp\ccOcbaaa.o(.text+0xfa6):spacem~1.c: undefined reference to `glutGet'
C:\DOCUME~1\MATTMI~1\LOCALS~1\Temp\ccOcbaaa.o(.text+0xfc9):spacem~1.c: undefined reference to `glutGet'
C:\DOCUME~1\MATTMI~1\LOCALS~1\Temp\ccOcbaaa.o(.text+0x1057):spacem~1.c: undefined reference to `glutGet'
C:\DOCUME~1\MATTMI~1\LOCALS~1\Temp\ccOcbaaa.o(.text+0x10f9):spacem~1.c: undefined reference to `glutGet'
C:\DOCUME~1\MATTMI~1\LOCALS~1\Temp\ccOcbaaa.o(.text+0x114c):spacem~1.c: more undefined references to `glutGet' follow
C:\DOCUME~1\MATTMI~1\LOCALS~1\Temp\ccOcbaaa.o(.text+0x11a1):spacem~1.c: undefined reference to `glutIgnoreKeyRepeat'
C:\DOCUME~1\MATTMI~1\LOCALS~1\Temp\ccOcbaaa.o(.text+0x11b1):spacem~1.c: undefined reference to `glutDisplayFunc'
C:\DOCUME~1\MATTMI~1\LOCALS~1\Temp\ccOcbaaa.o(.text+0x11c1):spacem~1.c: undefined reference to `glutVisibilityFunc'
C:\DOCUME~1\MATTMI~1\LOCALS~1\Temp\ccOcbaaa.o(.text+0x11d1):spacem~1.c: undefined reference to `glutKeyboardFunc'
C:\DOCUME~1\MATTMI~1\LOCALS~1\Temp\ccOcbaaa.o(.text+0x11e1):spacem~1.c: undefined reference to `glutKeyboardUpFunc'
C:\DOCUME~1\MATTMI~1\LOCALS~1\Temp\ccOcbaaa.o(.text+0x11f1):spacem~1.c: undefined reference to `glutSpecialFunc'
C:\DOCUME~1\MATTMI~1\LOCALS~1\Temp\ccOcbaaa.o(.text+0x1201):spacem~1.c: undefined reference to `glutSpecialUpFunc'
C:\DOCUME~1\MATTMI~1\LOCALS~1\Temp\ccOcbaaa.o(.text+0x1213):spacem~1.c: undefined reference to `glutJoystickFunc'
C:\DOCUME~1\MATTMI~1\LOCALS~1\Temp\ccOcbaaa.o(.text+0x1224):spacem~1.c: undefined reference to `_imp__glMatrixMode'
C:\DOCUME~1\MATTMI~1\LOCALS~1\Temp\ccOcbaaa.o(.text+0x122f):spacem~1.c: undefined reference to `_imp__glLoadIdentity'
C:\DOCUME~1\MATTMI~1\LOCALS~1\Temp\ccOcbaaa.o(.text+0x1267):spacem~1.c: undefined reference to `_imp__glOrtho'
C:\DOCUME~1\MATTMI~1\LOCALS~1\Temp\ccOcbaaa.o(.text+0x127a):spacem~1.c: undefined reference to `_imp__glMatrixMode'
C:\DOCUME~1\MATTMI~1\LOCALS~1\Temp\ccOcbaaa.o(.text+0x1294):spacem~1.c: undefined reference to `_imp__glPointSize'
C:\DOCUME~1\MATTMI~1\LOCALS~1\Temp\ccOcbaaa.o(.text+0x129e):spacem~1.c: undefined reference to `glutGetWindow'
C:\DOCUME~1\MATTMI~1\LOCALS~1\Temp\ccOcbaaa.o(.text+0x12db):spacem~1.c: undefined reference to `glutInit'
C:\DOCUME~1\MATTMI~1\LOCALS~1\Temp\ccOcbaaa.o(.text+0x12e8):spacem~1.c: undefined reference to `glutInitDisplayMode'
C:\DOCUME~1\MATTMI~1\LOCALS~1\Temp\ccOcbaaa.o(.text+0x131d):spacem~1.c: undefined reference to `glutGameModeString'
C:\DOCUME~1\MATTMI~1\LOCALS~1\Temp\ccOcbaaa.o(.text+0x1325):spacem~1.c: undefined reference to `glutEnterGameMode'
C:\DOCUME~1\MATTMI~1\LOCALS~1\Temp\ccOcbaaa.o(.text+0x1339):spacem~1.c: undefined reference to `glutCreateWindow'
C:\DOCUME~1\MATTMI~1\LOCALS~1\Temp\ccOcbaaa.o(.text+0x134d):spacem~1.c: undefined reference to `glutMainLoop'

---

Can anyone tell me what's wrong? Thanks! I've tried everything, and nothing works!

~Matt3000

Looks like you're not including the library.

Go to: Project -> Project Options, Parameter tab, click the Add Library or Object button.

Okay. Now I did that, and it won't let me run the program! It compiles 100% with no errors, but the "RUN" button is inactive, and where the file is in C:\, there is no .exe!

Here is the exact code I use!

Code:

---

/* Copyright (c) Mark J. Kilgard, 1994. */

/* This program is freely distributable without licensing fees
  and is provided without guarantee or warrantee expressed or
  implied. This program is -not- in the public domain. */

#include <stdio.h>
#include <stdlib.h>
#include <GL/glut.h>

int ch = -2;
void *font = GLUT_STROKE_ROMAN;

void
tick(void)
{
  ch += 1;
  if (ch > 180) {
    if (font == GLUT_STROKE_MONO_ROMAN) {
      printf("PASS: test4\n");
      exit(0);
    }
    ch = -2;
    font = GLUT_STROKE_MONO_ROMAN;
  }
  glutPostRedisplay();
}

void
display(void)
{
  glutIdleFunc(tick);
  glClear(GL_COLOR_BUFFER_BIT);
  glPushMatrix();
  glutStrokeCharacter(font, ch);
  glPopMatrix();
  glutSwapBuffers();
}

int
main(int argc, char **argv)
{
  glutInit(&argc, argv);
  glutInitDisplayMode(GLUT_DOUBLE | GLUT_RGB);
  glutInitWindowSize(200, 200);
  glutCreateWindow("Test stroke fonts");
  if (glutGet(GLUT_WINDOW_COLORMAP_SIZE) != 0) {
    printf("FAIL: bad RGBA colormap size\n");
    exit(1);
  }
  glMatrixMode(GL_PROJECTION);
  glLoadIdentity();
  gluOrtho2D(-50, 150, -50, 150);
  glClearColor(0.0, 0.0, 0.0, 1.0);
  glColor3f(1.0, 1.0, 1.0);
  glutDisplayFunc(display);
  glutMainLoop();
  return 0;            /* ANSI C requires main to return int. */
}

---

I JUST FOUND OUT! I HAVE LIBRARY FILE PROBLEMS! HELP ME!

If the Run button is inactive that usually means the program is already running. Check Task Manager and make sure it's not listed under Processes. If it is, kill it.

The .exe file for projects usually goes in C:\Dev-Cpp (or wherever you installed it) and the .c files go in the Templates subfolder.

Hey. Thanks for the help so far, but I still need more!

It's the LIB files. In the project options section, I've put this:

Code:

---

-lopengl32 -lglu32 -lglut32

---

But I get all this back!

Code:

---

c:\space_magus.o(.text+0x65):space_magus.c: undefined reference to `glutPostRedisplay'
c:\space_magus.o(.text+0x7c):space_magus.c: undefined reference to `glutIdleFunc'
c:\space_magus.o(.text+0x8d):space_magus.c: undefined reference to `_imp__glClear'
c:\space_magus.o(.text+0x98):space_magus.c: undefined reference to `_imp__glPushMatrix'
c:\space_magus.o(.text+0xae):space_magus.c: undefined reference to `glutStrokeCharacter'
c:\space_magus.o(.text+0xb7):space_magus.c: undefined reference to `_imp__glPopMatrix'
c:\space_magus.o(.text+0xbe):space_magus.c: undefined reference to `glutSwapBuffers'
c:\space_magus.o(.text+0x120):space_magus.c: undefined reference to `glutInit'
c:\space_magus.o(.text+0x12d):space_magus.c: undefined reference to `glutInitDisplayMode'
c:\space_magus.o(.text+0x142):space_magus.c: undefined reference to `glutInitWindowSize'
c:\space_magus.o(.text+0x152):space_magus.c: undefined reference to `glutCreateWindow'
c:\space_magus.o(.text+0x15f):space_magus.c: undefined reference to `glutGet'
c:\space_magus.o(.text+0x19a):space_magus.c: undefined reference to `_imp__glMatrixMode'
c:\space_magus.o(.text+0x1a5):space_magus.c: undefined reference to `_imp__glLoadIdentity'
c:\space_magus.o(.text+0x1dc):space_magus.c: undefined reference to `gluOrtho2D'
c:\space_magus.o(.text+0x1f0):space_magus.c: undefined reference to `_imp__glClearColor'
c:\space_magus.o(.text+0x20d):space_magus.c: undefined reference to `_imp__glColor3f'
c:\space_magus.o(.text+0x21f):space_magus.c: undefined reference to `glutDisplayFunc'
c:\space_magus.o(.text+0x227):space_magus.c: undefined reference to `glutMainLoop'

---

I use -lglut32

If you have just glut, use -lglut

Is that what you wanted?

Nope, still get the same errors. :-(

But I hear something on the internet about a DevPack GLUT? I just downloaded it from an OpenGL site. Is there a certain Dev-C++ version I should use?

In your source file, you didn't include the opengl header. Without it, i get a bunch of errors too, but with it, your code compiles.

#include <gl/gl.h>

That work?

Quote:

---

Originally Posted by Matt3000

Is there a certain Dev-C++ version I should use?

---

I use 4.9.9.2, but I haven't done any OpenGL programming in Windows. Sorry I can't be of any more help.

No, that gives me more errors. I think those includes are already in the Glut.h file. I think there is a DevPak I'm supposed to download.

Same problem. I have downloaded the OpenGL devpacks through the tools->check for updates/packages
I still get whacked errors like this:

A3.o(.text+0xc0e): In function `Z4idlev': C:/.../A3.c:280: undefined reference to `glutGet'

A3.o(.text+0xdb0): C:/.../A3.c:314: undefined reference to `glutPostRedisplay'

A3.o(.text+0x1002): In function `Z7displayv': C:/.../A3.c:368: undefined reference to `glutSwapBuffers'

I have been trying to figure this out for weeks...
I originally wrote the code in linux, actually, but that shouldnt matter with c++, and i have gotten regular glu programs to work, just not glut or glui ones

Those are linker errors. You're not linking with what you should be.

Make sure those library files exist, and see if there are any others you need to add.

Quote:

---

Originally Posted by Matt3000

It's the LIB files. In the project options section, I've put this:

Code:

---

-lopengl32 -lglu32 -lglut32

---

---

Well i got it to work. The truth is that the above libraries must be linked in the REVERSE ORDER... contradictory to EVERY SOURCE i've found on the matter... maybe it's just this version of DEV-C++... whacked

in your project options->parameters set it to this:

Code:

---

-lglut32 -lglu32 -lopengl32 -lwinmm -lgdi32

---

i am not certain what winmm and gdi32 are, but they appear to be necessary for windows.

hooray!