text: /*
   * tkUnixPort.h --
   *
   *  This file is included by all of the Tk C files.  It contains
   *  information that may be configuration-dependent, such as
   *  #includes for system include files and a few other things.
   *
   * Copyright (c) 1991-1993 The Regents of the University of California.
   * Copyright (c) 1994-1996 Sun Microsystems, Inc.
   *
   * See the file "license.terms" for information on usage and redistribution
   * of this file, and for a DISCLAIMER OF ALL WARRANTIES.
   *
   * RCS: @(#) Id
   */
  
  #ifndef _UNIXPORT
  #define _UNIXPORT
  
  #define __UNIX__ 1
  
  /*
   * Macro to use instead of "void" for arguments that must have
   * type "void *" in ANSI C;  maps them to type "char *" in
   * non-ANSI systems.  This macro may be used in some of the include
   * files below, which is why it is defined here.
   */
  
  #ifndef VOID
  #   ifdef __STDC__
  #       define VOID void
  #   else
  #       define VOID char
  #   endif
  #endif
  
  #include <stdio.h>
  #include <ctype.h>
  #include <fcntl.h>
  #ifndef NO_LIMITS_H
  #   include <limits.h>
  #else
  #   include "../compat/limits.h"
  #endif
  #include <math.h>
  #include <pwd.h>
  #ifdef NO_STDLIB_H
  #   include "../compat/stdlib.h"
  #else
  #   include <stdlib.h>
  #endif
  #include <string.h>
  #include <sys/types.h>
  #include <sys/file.h>
  #ifdef HAVE_SYS_SELECT_H
  #   include <sys/select.h>
  #endif
  #include <sys/stat.h>
  #ifndef _TCL
  #   include <tcl.h>
  #endif
  #if TIME_WITH_SYS_TIME
  #   include <sys/time.h>
  #   include <time.h>
  #else
  #   if HAVE_SYS_TIME_H
  #       include <sys/time.h>
  #   else
  #       include <time.h>
  #   endif
  #endif
  #if HAVE_INTTYPES_H
  #    include <inttypes.h>
  #endif
  #ifndef NO_UNISTD_H
  #   include <unistd.h>
  #else
  #   include "../compat/unistd.h"
  #endif
  #include <X11/Xlib.h>
  #include <X11/cursorfont.h>
  #include <X11/keysym.h>
  #include <X11/Xatom.h>
  #include <X11/Xproto.h>
  #include <X11/Xresource.h>
  #include <X11/Xutil.h>
  
  /*
   * The following macro defines the type of the mask arguments to
   * select:
   */
  
  #ifndef NO_FD_SET
  #   define SELECT_MASK fd_set
  #else
  #   ifndef _AIX
    typedef long fd_mask;
  #   endif
  #   if defined(_IBMR2)
  #  define SELECT_MASK void
  #   else
  #  define SELECT_MASK int
  #   endif
  #endif
  
  /*
   * The following macro defines the number of fd_masks in an fd_set:
   */
  
  #ifndef FD_SETSIZE
  #   ifdef OPEN_MAX
  #  define FD_SETSIZE OPEN_MAX
  #   else
  #  define FD_SETSIZE 256
  #   endif
  #endif
  #if !defined(howmany)
  #   define howmany(x, y) (((x)+((y)-1))/(y))
  #endif
  #ifndef NFDBITS
  #   define NFDBITS NBBY*sizeof(fd_mask)
  #endif
  #define MASK_SIZE howmany(FD_SETSIZE, NFDBITS)
  
  /*
   * Define "NBBY" (number of bits per byte) if it's not already defined.
   */
  
  #ifndef NBBY
  #   define NBBY 8
  #endif
  
  /*
   * These macros are just wrappers for the equivalent X Region calls.
   */
  
  #define TkClipBox(rgn, rect) XClipBox((Region) rgn, rect)
  #define TkCreateRegion() (TkRegion) XCreateRegion()
  #define TkDestroyRegion(rgn) XDestroyRegion((Region) rgn)
  #define TkIntersectRegion(a, b, r) XIntersectRegion((Region) a, \
    (Region) b, (Region) r)
  #define TkRectInRegion(r, x, y, w, h) XRectInRegion((Region) r, x, y, w, h)
  #define TkSetRegion(d, gc, rgn) XSetRegion(d, gc, (Region) rgn)
  #define TkSubtractRegion(a, b, r) XSubtractRegion((Region) a, \
    (Region) b, (Region) r)
  #define TkUnionRectWithRegion(rect, src, ret) XUnionRectWithRegion(rect, \
    (Region) src, (Region) ret)
  
  /*
   * The TkPutImage macro strips off the color table information, which isn't
   * needed for X.
   */
  
  #define TkPutImage(colors, ncolors, display, pixels, gc, image, srcx, srcy, destx, desty, width, height) \
    XPutImage(display, pixels, gc, image, srcx, srcy, destx, \
    desty, width, height);
  
  /*
   * Supply macros for seek offsets, if they're not already provided by
   * an include file.
   */
  
  #ifndef SEEK_SET
  #   define SEEK_SET 0
  #endif
  
  #ifndef SEEK_CUR
  #   define SEEK_CUR 1
  #endif
  
  #ifndef SEEK_END
  #   define SEEK_END 2
  #endif
  
  /*
   * Declarations for various library procedures that may not be declared
   * in any other header file.
   */
  
  
  /*
   * These functions do nothing under Unix, so we just eliminate calls to them.
   */
  
  #define TkpButtonSetDefaults(specPtr) {}
  #define TkpDestroyButton(butPtr) {}
  #define TkSelUpdateClipboard(a,b) {}
  #define TkSetPixmapColormap(p,c) {}
  
  /*
   * These calls implement native bitmaps which are not supported under
   * UNIX.  The macros eliminate the calls.
   */
  
  #define TkpDefineNativeBitmaps()
  #define TkpCreateNativeBitmap(display, source) None
  #define TkpGetNativeAppBitmap(display, name, w, h) None
  
  /*
   * This macro stores a representation of the window handle in a string.
   * This should perhaps use the real size of an XID.
   */
  
  #define TkpPrintWindowId(buf,w) \
    sprintf((buf), "%#08lx", (unsigned long) (w))
  
  #endif /* _UNIXPORT */
  