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diff --git a/hw/xquartz/quartzCommon.h b/hw/xquartz/quartzCommon.h
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+/*
+ * quartzCommon.h
+ *
+ * Common definitions used internally by all Quartz modes
+ *
+ * This file should be included before any X11 or IOKit headers
+ * so that it can avoid symbol conflicts.
+ *
+ * Copyright (c) 2001-2004 Torrey T. Lyons and Greg Parker.
+ *                 All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE ABOVE LISTED COPYRIGHT HOLDER(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ *
+ * Except as contained in this notice, the name(s) of the above copyright
+ * holders shall not be used in advertising or otherwise to promote the sale,
+ * use or other dealings in this Software without prior written authorization.
+ */
+
+#ifndef _QUARTZCOMMON_H
+#define _QUARTZCOMMON_H
+
+// QuickDraw in ApplicationServices has the following conflicts with
+// the basic X server headers. Use QD_<name> to use the QuickDraw
+// definition of any of these symbols, or the normal name for the
+// X11 definition.
+#define Cursor       QD_Cursor
+#define WindowPtr    QD_WindowPtr
+#define Picture      QD_Picture
+#include <ApplicationServices/ApplicationServices.h>
+#undef Cursor
+#undef WindowPtr
+#undef Picture
+#include <X11/Xdefs.h>
+#include "privates.h"
+
+// Quartz specific per screen storage structure
+typedef struct {
+    // List of CoreGraphics displays that this X11 screen covers.
+    // This is more than one CG display for video mirroring and
+    // rootless PseudoramiX mode.
+    // No CG display will be covered by more than one X11 screen.
+    int displayCount;
+    CGDirectDisplayID *displayIDs;
+} QuartzScreenRec, *QuartzScreenPtr;
+
+#define QUARTZ_PRIV(pScreen) \
+    ((QuartzScreenPtr)dixLookupPrivate(&pScreen->devPrivates, quartzScreenKey))
+
+// Data stored at startup for Cocoa front end
+extern int              quartzEventWriteFD;
+
+// User preferences used by Quartz modes
+extern int              quartzRootless;
+extern int              quartzUseSysBeep;
+extern int              quartzUseAGL;
+extern int              quartzEnableKeyEquivalents;
+
+// Other shared data
+extern int              quartzServerVisible;
+extern int              quartzServerQuitting;
+extern DevPrivateKey    quartzScreenKey;
+extern int              aquaMenuBarHeight;
+
+// Name of GLX bundle for native OpenGL
+extern const char      *quartzOpenGLBundle;
+
+void QuartzReadPreferences(void);
+void QuartzMessageMainThread(unsigned msg, void *data, unsigned length);
+void QuartzMessageServerThread(int type, int argc, ...);
+void QuartzSetWindowMenu(int nitems, const char **items,
+                         const char *shortcuts);
+void QuartzFSCapture(void);
+void QuartzFSRelease(void);
+int  QuartzFSUseQDCursor(int depth);
+void QuartzBlockHandler(pointer blockData, OSTimePtr pTimeout, pointer pReadmask);
+void QuartzWakeupHandler(pointer blockData, int result, pointer pReadmask);
+
+// Messages that can be sent to the main thread.
+enum {
+    kQuartzServerHidden,
+    kQuartzServerStarted,
+    kQuartzServerDied,
+    kQuartzCursorUpdate,
+    kQuartzPostEvent,
+    kQuartzSetWindowMenu,
+    kQuartzSetWindowMenuCheck,
+    kQuartzSetFrontProcess,
+    kQuartzSetCanQuit
+};
+
+#endif  /* _QUARTZCOMMON_H */