salve a tutti sto impazzendo dietro sto pezzo di codice:
codice:
void SetupRC(){
 GLubyte *pBytes;
    GLint iWidth, iHeight, iComponents;
    GLenum eFormat;

	 // Light values and coordinates
    GLfloat  whiteLight[] = { 0.05f, 0.05f, 0.05f, 1.0f };
    GLfloat  sourceLight[] = { 0.5f, 0.5f, 0.5f, 1.0f };
    GLfloat	 lightPos[] = { -10.f, 5.0f, 5.0f, 1.0f };

	 glEnable(GL_DEPTH_TEST);	// Hidden surface removal
    glFrontFace(GL_CCW);		// Counter clock-wise polygons face out
    //glEnable(GL_CULL_FACE);		// Do not calculate inside of jet

    // Enable lighting
    glEnable(GL_LIGHTING);
	
	 // Setup and enable light 0
    glLightModelfv(GL_LIGHT_MODEL_AMBIENT,whiteLight);
    glLightfv(GL_LIGHT0,GL_AMBIENT,sourceLight);
    glLightfv(GL_LIGHT0,GL_DIFFUSE,sourceLight);
    glLightfv(GL_LIGHT0,GL_POSITION,lightPos);
    glEnable(GL_LIGHT0);

    // Enable color tracking
    glEnable(GL_COLOR_MATERIAL);

	 // Set Material properties to follow glColor values
    glColorMaterial(GL_FRONT, GL_AMBIENT_AND_DIFFUSE);

    // Black blue background
    glClearColor(0.0f, 0.0f, 0.0f, 1.0f );
	


	// Load texture
    // glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
	pBytes = gltLoadTGA("texture.tga", &iWidth, &iHeight, &iComponents, &eFormat);
    glTexImage2D(GL_TEXTURE_2D, 0, iComponents, iWidth, iHeight, 0, eFormat, GL_UNSIGNED_BYTE, pBytes);
    free(pBytes);

	 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
    
    glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
    glEnable(GL_TEXTURE_2D);


	giocatore.position[0] = 10 / 2.0;
	giocatore.position[1] = 50 / 2.0;
	giocatore.position[2] = 1;
	giocatore.forward[0] = 10 / 2.0;
	giocatore.forward[1] = 50 / 2.0 + 1;
	giocatore.forward[2] = 1;
	giocatore.up[0] = 0.0;
	giocatore.up[1] = 0.0;
	giocatore.up[2] = 1.0;

    }
in particolare
pBytes = gltLoadTGA("texture.tga", &iWidth, &iHeight, &iComponents, &eFormat);
quando compilo mi dice:

1>file.obj : error LNK2019: riferimento al simbolo esterno _gltLoadTGA non risolto nella funzione _SetupRC
1>C:\Documents and Settings\Desktop\progetto\Debug\prog.exe : fatal error LNK1120: 1 esterni non risolti

come diavolo risolvere il problema