/* xinit.c
 *
 * $Id$
 *
 * Copyright 1990, 1991, 1992, 1993, 1994, 1995, Oliver Laumann, Berlin
 * Copyright 2002, 2003 Sam Hocevar <sam@zoy.org>, Paris
 *
 * This software was derived from Elk 1.2, which was Copyright 1987, 1988,
 * 1989, Nixdorf Computer AG and TELES GmbH, Berlin (Elk 1.2 has been written
 * by Oliver Laumann for TELES Telematic Services, Berlin, in a joint project
 * between TELES and Nixdorf Microprocessor Engineering, Berlin).
 *
 * Oliver Laumann, TELES GmbH, Nixdorf Computer AG and Sam Hocevar, as co-
 * owners or individual owners of copyright in this software, grant to any
 * person or company a worldwide, royalty free, license to
 *
 *    i) copy this software,
 *   ii) prepare derivative works based on this software,
 *  iii) distribute copies of this software or derivative works,
 *   iv) perform this software, or
 *    v) display this software,
 *
 * provided that this notice is not removed and that neither Oliver Laumann
 * nor Teles nor Nixdorf are deemed to have made any representations as to
 * the suitability of this software for any purpose nor are held responsible
 * for any defects of this software.
 *
 * THERE IS ABSOLUTELY NO WARRANTY FOR THIS SOFTWARE.
 */

#include "xlib.h"

static Object P_Xlib_Release_4_Or_Laterp () {
    return True;
}

static Object P_Xlib_Release_5_Or_Laterp () {
#ifdef XLIB_RELEASE_5_OR_LATER
    return True;
#else
    return False;
#endif
}

static Object P_Xlib_Release_6_Or_Laterp () {
#ifdef XLIB_RELEASE_6_OR_LATER
    return True;
#else
    return False;
#endif
}

void elk_init_xlib_init () {
    Define_Primitive (P_Xlib_Release_4_Or_Laterp,
                        "xlib-release-4-or-later?",               0, 0, EVAL);
    Define_Primitive (P_Xlib_Release_5_Or_Laterp,
                        "xlib-release-5-or-later?",               0, 0, EVAL);
    Define_Primitive (P_Xlib_Release_6_Or_Laterp,
                        "xlib-release-6-or-later?",               0, 0, EVAL);
    P_Provide (Intern ("xlib.la"));
}

#if defined(XLIB_RELEASE_5_OR_LATER) && (defined(sun) || defined(__sun__)) &&\
    defined(__svr4__)
/*
 * Stub interface to dynamic linker routines
 * that SunOS uses but didn't ship with 4.1.
 *
 * The C library routine wcstombs in SunOS 4.1 tries to dynamically
 * load some routines using the dlsym interface, described in dlsym(3x).
 * Unfortunately SunOS 4.1 does not include the necessary library, libdl.
 */

void *dlopen() { return 0; }

void *dlsym() { return 0; }

int dlclose() { return -1; }

#endif