diff --git a/unix/xserver115.patch b/unix/xserver115.patch
new file mode 100644
index 0000000..82b02c1
--- /dev/null
+++ b/unix/xserver115.patch
@@ -0,0 +1,145 @@
+diff -up xserver/configure.ac.vnc xserver/configure.ac
+--- xserver/configure.ac.vnc	2013-04-09 16:35:38.000000000 +0200
++++ xserver/configure.ac	2013-04-09 18:16:31.000000000 +0200
+@@ -72,6 +72,7 @@ dnl forcing an entire recompile.x
+ AC_CONFIG_HEADERS(include/version-config.h)
+ 
+ AM_PROG_AS
++AC_PROG_CXX
+ AC_PROG_LN_S
+ AC_LIBTOOL_WIN32_DLL
+ AC_DISABLE_STATIC
+@@ -1028,7 +1029,6 @@ fi
+ if test "x$WAYLAND" = xyes; then
+         PKG_CHECK_MODULES(XWAYLAND, $WAYLAND_MODULES)
+       AC_DEFINE(XORG_WAYLAND, 1, [Support wayland mode])
+-      WAYLAND_SCANNER_RULES(['$(top_srcdir)/hw/xfree86/xwayland'])
+ fi
+ AM_CONDITIONAL(WAYLAND, [test "x$WAYLAND" = xyes])
+ 
+@@ -1573,6 +1573,10 @@ if test "x$XVFB" = xyes; then
+ 	AC_SUBST([XVFB_SYS_LIBS])
+ fi
+ 
++dnl Xvnc DDX
++AC_SUBST([XVNC_CPPFLAGS], ["-DHAVE_DIX_CONFIG_H $XSERVER_CFLAGS"])
++AC_SUBST([XVNC_LIBS], ["$FB_LIB $FIXES_LIB $XEXT_LIB $CONFIG_LIB $DBE_LIB $RECORD_LIB $GLX_LIBS $RANDR_LIB $RENDER_LIB $DAMAGE_LIB $DRI3_LIB $PRESENT_LIB $MIEXT_SYNC_LIB $MIEXT_DAMAGE_LIB $MIEXT_SHADOW_LIB $XI_LIB $XKB_LIB $XKB_STUB_LIB $COMPOSITE_LIB $MAIN_LIB"])
++AC_SUBST([XVNC_SYS_LIBS], ["$GLX_SYS_LIBS"])
+ 
+ dnl Xnest DDX
+ 
+@@ -1608,6 +1612,8 @@ if test "x$XORG" = xauto; then
+ fi
+ AC_MSG_RESULT([$XORG])
+ 
++AC_DEFINE_UNQUOTED(XORG_VERSION_CURRENT, [$VENDOR_RELEASE], [Current Xorg version])
++
+ if test "x$XORG" = xyes; then
+ 	XORG_DDXINCS='-I$(top_srcdir)/hw/xfree86 -I$(top_srcdir)/hw/xfree86/include -I$(top_srcdir)/hw/xfree86/common'
+ 	XORG_OSINCS='-I$(top_srcdir)/hw/xfree86/os-support -I$(top_srcdir)/hw/xfree86/os-support/bus -I$(top_srcdir)/os'
+@@ -1827,7 +1833,6 @@ if test "x$XORG" = xyes; then
+ 	AC_DEFINE(XORG_SERVER, 1, [Building Xorg server])
+ 	AC_DEFINE(XORGSERVER, 1, [Building Xorg server])
+ 	AC_DEFINE(XFree86Server, 1, [Building XFree86 server])
+-	AC_DEFINE_UNQUOTED(XORG_VERSION_CURRENT, [$VENDOR_RELEASE], [Current Xorg version])
+ 	AC_DEFINE(NEED_XF86_TYPES, 1, [Need XFree86 typedefs])
+ 	AC_DEFINE(NEED_XF86_PROTOTYPES, 1, [Need XFree86 helper functions])
+ 	AC_DEFINE(__XSERVERNAME__, "Xorg", [Name of X server])
+@@ -2292,6 +2297,7 @@ hw/dmx/Makefile
+ hw/dmx/man/Makefile
+ hw/vfb/Makefile
+ hw/vfb/man/Makefile
++hw/vnc/Makefile
+ hw/xnest/Makefile
+ hw/xnest/man/Makefile
+ hw/xwin/Makefile
+diff -up xserver/hw/Makefile.am.vnc xserver/hw/Makefile.am
+--- xserver/hw/Makefile.am.vnc	2013-04-09 16:36:46.000000000 +0200
++++ xserver/hw/Makefile.am	2013-04-09 18:16:31.000000000 +0200
+@@ -33,7 +33,8 @@ SUBDIRS =			\
+ 	$(XNEST_SUBDIRS)	\
+ 	$(DMX_SUBDIRS)		\
+ 	$(KDRIVE_SUBDIRS)	\
+-	$(XQUARTZ_SUBDIRS)
++	$(XQUARTZ_SUBDIRS)	\
++	vnc
+ 
+ DIST_SUBDIRS = dmx xfree86 vfb xnest xwin xquartz kdrive
+ 
+diff -up xserver/mi/miinitext.c.vnc xserver/mi/miinitext.c
+--- xserver/mi/miinitext.c.vnc	2013-04-09 16:37:21.000000000 +0200
++++ xserver/mi/miinitext.c	2013-04-09 18:16:31.000000000 +0200
+@@ -112,6 +112,10 @@ SOFTWARE.
+ #include "micmap.h"
+ #include "globals.h"
+ 
++#ifdef TIGERVNC
++extern void vncExtensionInit(INITARGS);
++#endif
++
+ /* The following is only a small first step towards run-time
+  * configurable extensions.
+  */
+@@ -238,6 +242,9 @@ EnableDisableExtensionError(const char *
+ 
+ /* List of built-in (statically linked) extensions */
+ static ExtensionModule staticExtensions[] = {
++#ifdef TIGERVNC
++    {vncExtensionInit, "VNC-EXTENSION", NULL},
++#endif
+     {GEExtensionInit, "Generic Event Extension", &noGEExtension},
+     {ShapeExtensionInit, "SHAPE", NULL},
+ #ifdef MITSHM
+diff -up xserver/os/WaitFor.c.vnc xserver/os/WaitFor.c
+--- xserver/os/WaitFor.c.vnc	2013-04-10 14:51:13.000000000 +0200
++++ xserver/os/WaitFor.c	2013-04-10 14:55:40.000000000 +0200
+@@ -124,6 +124,9 @@ static void DoTimer(OsTimerPtr timer, CA
+ static void CheckAllTimers(void);
+ static OsTimerPtr timers = NULL;
+ 
++extern void vncWriteBlockHandler(fd_set *fds);
++extern void vncWriteWakeupHandler(int nfds, fd_set *fds);
++
+ /*****************
+  * WaitForSomething:
+  *     Make the server suspend until there is
+@@ -149,6 +152,7 @@ WaitForSomething(int *pClientsReady)
+     INT32 timeout = 0;
+     fd_set clientsReadable;
+     fd_set clientsWritable;
++    fd_set socketsWritable;
+     int curclient;
+     int selecterr;
+     static int nready;
+@@ -207,6 +211,9 @@ WaitForSomething(int *pClientsReady)
+             XFD_COPYSET(&AllSockets, &LastSelectMask);
+         }
+ 
++        FD_ZERO(&socketsWritable);
++        vncWriteBlockHandler(&socketsWritable);
++
+         BlockHandler((pointer) &wt, (pointer) &LastSelectMask);
+         if (NewOutputPending)
+             FlushAllOutput();
+@@ -218,10 +225,20 @@ WaitForSomething(int *pClientsReady)
+             i = Select(MaxClients, &LastSelectMask, &clientsWritable, NULL, wt);
+         }
+         else {
+-            i = Select(MaxClients, &LastSelectMask, NULL, NULL, wt);
++            if (AnyClientsWriteBlocked)
++            XFD_ORSET(&socketsWritable, &ClientsWriteBlocked, &socketsWritable);
++
++            if (XFD_ANYSET(&socketsWritable)) {
++                i = Select (MaxClients, &LastSelectMask, &socketsWritable, NULL, wt);
++                if (AnyClientsWriteBlocked)
++                    XFD_ANDSET(&clientsWritable, &socketsWritable, &ClientsWriteBlocked);
++            } else {
++                i = Select (MaxClients, &LastSelectMask, NULL, NULL, wt);
++            }
+         }
+         selecterr = GetErrno();
+         WakeupHandler(i, (pointer) &LastSelectMask);
++        vncWriteWakeupHandler(i, &socketsWritable);
+         if (i <= 0) {           /* An error or timeout occurred */
+             if (dispatchException)
+                 return 0;