Possible Duplicate:
FreeGLUT on Mac OS X Lion
First quizz : could anyone just please explain me why am I not able to find the gl.h file anywhere on my mac ?! If this question can simply be answered maybe you do not even have to read the rest, but I couldn't find any answer on the web to that one (after hours of research), except the famous "it's integrated into the os" or something like that.
My problem In detail:
I am having an issue with the compilation of a .c file using OpenGL. Ihave browsed the web for hours without finding any solution. Here is the problem :
For those who know this software, I am using Webots (a robot simulation software) and I would like to implement a physic plugin. I copied the code from an already existing (and working) plugin, just to try it out. I am compiling with webots, which uses a gcc (I had to install a gcc compiler since it doesn't come with Xcode anymore).
Now, the problem is that the .c file includes a "physics.h" header which includes the OpenGL/gl.h file and I then get the error : "OpenGL/gl.h . no such file or directoy".
Now I've tried to many things :
making a search for gl.h : it seems it doean't exist (I can't find it, either manually or with the finder search function)
replacing the include OpenGL/gl.h by GLUT/glut.h : I get the error "gl.h and glu.h no such fil or directory" since their included in the glut.h
linking the gl libraries in the makefile and the frameworks as well
Probably all the combination of these, using absolute or relative path !
Since OpenGL and GLUT are supposed to be natively installed with OS (I am on using Lion 10.7.5) I guess every needed file should be there. And for this reaon I cannot find a way to download this supposedely missing file...
Moreover a coworker of mine tried and successfully compiled it on linux ! Linux is a great platform but I still love my mac, so please let me hope there is another solution than to change for linux !!!
I think my problem lies either in the Makefile or in the physic.h file, so here they are :
Physic.h:
#ifndef PHYSICS_H
#define PHYSICS_H
#include <ode/ode.h>
#ifdef WIN32
#include <windows.h>
#endif
#ifndef MACOS
#include <GL/gl.h>
#else
#include <OpenGL/gl.h>
#endif
/* callback functions to be implemented in your physics plugin */
#ifdef __cplusplus
extern "C" {
#endif
#ifdef _MSC_VER
#define DLLEXPORT __declspec(dllexport)
#else
#define DLLEXPORT
#endif
DLLEXPORT void webots_physics_init(dWorldID,dSpaceID,dJointGroupID);
DLLEXPORT int webots_physics_collide(dGeomID,dGeomID);
DLLEXPORT void webots_physics_step();
DLLEXPORT void webots_physics_step_end();
DLLEXPORT void webots_physics_cleanup();
DLLEXPORT void webots_physics_draw();
DLLEXPORT void webots_physics_predraw();
/* utility functions to be used in your callback functions */
#ifndef LINUX
extern dGeomID (*dWebotsGetGeomFromDEFProc)(const char *);
extern dBodyID (*dWebotsGetBodyFromDEFProc)(const char *);
extern void (*dWebotsSendProc)(int,const void *,int);
extern void* (*dWebotsReceiveProc)(int *);
extern void (*dWebotsConsolePrintfProc)(const char *, ...);
extern double (*dWebotsGetTimeProc)();
#define dWebotsGetGeomFromDEF(DEFName) (*dWebotsGetGeomFromDEFProc)(DEFName)
#define dWebotsGetBodyFromDEF(DEFName) (*dWebotsGetBodyFromDEFProc)(DEFName)
#define dWebotsSend(channel,buff,size) (*dWebotsSendProc)(channel,buff,size)
#define dWebotsReceive(size_ptr) (*dWebotsReceiveProc)(size_ptr)
#if defined(__VISUALC__) || defined (_MSC_VER) || defined(__BORLANDC__)
#define dWebotsConsolePrintf(format, ...) (*dWebotsConsolePrintfProc)(format, __VA_ARGS__)
#else
#define dWebotsConsolePrintf(format, ...) (*dWebotsConsolePrintfProc)(format, ## __VA_ARGS__)
#endif
#define dWebotsGetTime() (*dWebotsGetTimeProc)()
#else
dGeomID dWebotsGetGeomFromDEF(const char *DEFName);
dBodyID dWebotsGetBodyFromDEF(const char *DEFName);
void dWebotsSend(int channel,const void *buffer,int size);
void *dWebotsReceive(int *size);
void dWebotsConsolePrintf(const char *format, ...);
double dWebotsGetTime();
#endif
#ifdef __cplusplus
}
#endif
#endif /* PHYSICS_H */
Makefile:
###
### Standard Makefile for Webots physics plugins
###
### Supported platforms: Windows, Mac OS X, Linux
### Supported languages: C, C++
###
### Authors: Olivier Michel - www.cyberbotics.com
### Revised: Yvan Bourquin - September 30th, 2009.
###
### Uncomment the variables to customize the Makefile
### -----C Sources-----
###
### if your plugin uses several C source files:
C_SOURCES = my_contact_p_physics.c
### -----C++ Sources-----
###
### if your plugin uses several C++ source files:
# CPP_SOURCES = my_plugin.cpp my_clever_algo.cpp my_graphics.cpp
### or
# CC_SOURCES = my_plugin.cc my_clever_algo.cc my_graphics.cc
FRAMEWORK = -framework OpenGL -framework GLUT
### -----Options-----
###
### if special CFLAGS are necessary, for example to set optimization level or
### to find include files:
#CFLAGS=-O3 -I/System/Library/Frameworks/OpenGL.framework
###
### if your plugin needs additional libraries:
LIBRARIES=-L/System/Library/Frameworks/OpenGL.framework/Versions/A/Libraries -llibGL -llibGLU
### Do not modify: this includes Webots global Makefile.include
space :=
space +=
WEBOTS_HOME_PATH=$(subst $(space),\ ,$(strip $(subst \,/,$(WEBOTS_HOME))))
include $(WEBOTS_HOME_PATH)/resources/projects/default/plugins/physics/Makefile.include
P.S: In the "my_contact_p_physics.c" (the .c file I am trying so hard to compile) I simply include a ODE/ode.h file and the physics.h file with absolute path. I cannot compile directy in the terminal because of the ODE which "integrated" into webots, reason why I compile in webots directly.
