compilation depuis xdarwin

[blackhole]

J'ai compiler un petit prog qui vient du monde linux (pas celui qui traine dans la gamezone).... avec les package de xdarwin.... mais ça me colle une erreur:

g++ -Wall -O3 -I/usr/X11R6/include -lGL -L/usr/X11R6/lib -o img main.o raster.o glwindow.o
ld: glwindow.o illegal reference to symbol: _XCloseDisplay defined in indirectly referenced dynamic library /usr/X11R6/lib/libX11.6.dylib
make: *** Error 1


avec comme package glwindow.cpp :

#include "glwindow.h"

GLWindow::~GLWindow() {
XDestroyWindow(dpy, win);
XCloseDisplay(dpy);
}

GLWindow::GLWindow() {

cout << "initializing X multithreading :\t"<<((XInitThreads())?"successful":"failed")<<endl;
RGB_COLOR = 3;


swap_flag = false;
int attributeListDbl[] = { GLX_RGBA, GLX_DOUBLEBUFFER, /*In case single buffering is not supported*/ GLX_RED_SIZE, 1, GLX_GREEN_SIZE, 1, GLX_BLUE_SIZE, 1, None };
int attributeListSgl[] = { GLX_RGBA, GLX_RED_SIZE, 1, /*get the deepest buffer with 1 red bit*/ GLX_GREEN_SIZE, 1, GLX_BLUE_SIZE, 1, None };

/* get a connection */
dpy = XOpenDisplay(0);

/* get an appropriate visual */
vi = glXChooseVisual(dpy, DefaultScreen(dpy), attributeListSgl);
if (vi == NULL) {
vi = glXChooseVisual(dpy, DefaultScreen(dpy), attributeListDbl);
swap_flag = true;
}
/* create a GLX context */
cx = glXCreateContext(dpy, vi, 0, GL_TRUE);

/* create a color map */
cmap = XCreateColormap(dpy, RootWindow(dpy, vi->screen), vi->visual, AllocNone);

/* create a window */
swa.colormap = cmap;
swa.border_pixel = 0;
swa.event_mask = StructureNotifyMask;
win = XCreateWindow(dpy, RootWindow(dpy, vi->screen),
0, 0, screen_width, screen_height,
0, vi->depth, InputOutput,
vi->visual,
CWBorderPixel|CWColormap|CWEventMask, &swa);
XMapWindow(dpy, win);
//XIfEvent(dpy, &event, WaitForNotify, (char*)win);
glXMakeCurrent(dpy, win, cx);


cout << "window created"<<endl;
}


void GLWindow::setRaster(Raster * in) {
R = in;
}


void GLWindow::idleLoop() {
while(true) display();
}


void GLWindow::display() {
// cout << "glwindow: display"<<endl;
glClearColor(0,0,0,0);
glClear(GL_COLOR_BUFFER_BIT);
R->update();
R->display();

swapBuffers();
}

void GLWindow::swapBuffers() {
if (swap_flag) glXSwapBuffers(dpy,win);
}


si qqun a une idée je suis preneur