[itistoday]

K, to get a better grasp of texture mapping with another library, I'm going through some quick OpenGL examples in C, however, they fail to compile on my system because of something.

The problem isn't the code since even Apple's examples fail to compile, but I think it has to do with a library not being included.

Here's what I have:

Code:
/* For Core Graphics */
#include <ApplicationServices/ApplicationServices.h>

/* For CGL */
#include <OpenGL/OpenGL.h>
#include <OpenGL/gl.h>	
#include <OpenGL/glu.h>
#include <GLUT/glut.h>
#include <OpenGL/glext.h>

#include <Carbon/Carbon.h>

I get the following error after doing a 'cc thing.c'

Code:
ld: Undefined symbols:
_CGAssociateMouseAndMouseCursorPosition
_CGDisplayCapture
_CGDisplayHideCursor
_CGDisplayMoveCursorToPoint
_CGDisplayRestoreColorSyncSettings
_CGDisplayShowCursor
_CGGetDisplayTransferByFormula
_CGLChoosePixelFormat
 blah blah blah...

What should I do?

[arekkusu]

Anytime you have a linker (ld) error like this, you need to link against the library that contains the symbols.

In this case, the OpenGL framework. Add it to your Xcode project, or if you're compiling from the shell add "-framework OpenGL".

Similarly you need "-framework GLUT" for GLUT stuff, and that depends on Objective-C internally so you also need -lobjc (or -framework Cocoa).

[itistoday]

Originally posted by arekkusu:
Anytime you have a linker (ld) error like this, you need to link against the library that contains the symbols.

In this case, the OpenGL framework. Add it to your Xcode project, or if you're compiling from the shell add "-framework OpenGL".

Similarly you need "-framework GLUT" for GLUT stuff, and that depends on Objective-C internally so you also need -lobjc (or -framework Cocoa).

Thanks a bunch! I normally program in Java so this C library stuff escapes me.