#include <X11/Xlib.h>
#include <GL/glx.h>

int main(void)
{
    Display *display;
    int error, event, major, minor, n;
    GLXFBConfig *fbconfig;
    GLXContext context;

    display = XOpenDisplay(NULL);
    if (display == NULL)
    {
	return 1;
    }

    if (!glXQueryExtension(display, &error, &event) ||
	!glXQueryVersion(display, &major, &minor))
    {
	XCloseDisplay(display);
	return 1;
    }

    fbconfig = glXGetFBConfigs(display, DefaultScreen(display), &n);
    context = glXCreateNewContext(display, fbconfig[0], GLX_RGBA_TYPE, NULL, True);
    glXMakeContextCurrent(display, DefaultRootWindow(display), DefaultRootWindow(display), context);
    XCloseDisplay(display);

    return 0;
}