diff --git a/configure b/configure
index d74403e..7a88e49 100755
--- a/configure
+++ b/configure
@@ -8659,12 +8659,14 @@
 
 
 
+
 for ac_header in X11/Xlib.h \
                       X11/XKBlib.h \
                       X11/Xutil.h \
                       X11/extensions/shape.h \
                       X11/extensions/XInput.h \
                       X11/extensions/XShm.h \
+                      X11/extensions/Xinerama.h \
                       X11/extensions/Xrandr.h \
                       X11/extensions/Xrender.h \
                       X11/extensions/xf86vmode.h
@@ -9261,6 +9263,74 @@
 
         fi
 
+                if test "$ac_cv_header_X11_extensions_Xinerama_h" = "yes"
+        then
+                cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+#include <X11/Xlib.h>
+#include <X11/extensions/Xinerama.h>
+int
+main ()
+{
+static typeof(XineramaQueryScreens) * func;
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (ac_try="$ac_compile"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+	 { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
+  { (case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+  (eval "$ac_try") 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; } &&
+	 { ac_try='test -s conftest.$ac_objext'
+  { (case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+  (eval "$ac_try") 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+
+cat >>confdefs.h <<\_ACEOF
+#define HAVE_LIBXINERAMA 1
+_ACEOF
+
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+        fi
+
+
         if test "x$with_opengl" != "xno"
     then
 
@@ -16614,6 +16684,98 @@
 
 fi
 
+  { echo "$as_me:$LINENO: checking for -lXinerama soname" >&5
+echo $ECHO_N "checking for -lXinerama soname... $ECHO_C" >&6; }
+if test "${ac_cv_lib_soname_Xinerama+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  ac_get_soname_save_LIBS=$LIBS
+LIBS="-lXinerama $X_LIBS -lXext -lX11 $X_EXTRA_LIBS $LIBS"
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char XineramaQueryScreens ();
+int
+main ()
+{
+return XineramaQueryScreens ();
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (ac_try="$ac_link"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+  (eval "$ac_link") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+	 { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
+  { (case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+  (eval "$ac_try") 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; } &&
+	 { ac_try='test -s conftest$ac_exeext'
+  { (case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+  (eval "$ac_try") 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  case "$LIBEXT" in
+    dylib) ac_cv_lib_soname_Xinerama=`otool -L conftest$ac_exeext | grep libXinerama\\.[0-9A-Za-z.]*dylib | sed -e "s/^.*\/\(libXinerama\.[0-9A-Za-z.]*dylib\).*$/\1/"';2,$d'` ;;
+    so) ac_cv_lib_soname_Xinerama=`$ac_cv_path_LDD conftest$ac_exeext | grep libXinerama\\.so | sed -e "s/^.*\(libXinerama\.so[^	 ]*\).*$/\1/"';2,$d'` ;;
+  esac
+  if test "x$ac_cv_lib_soname_Xinerama" = "x"
+  then
+     ac_cv_lib_soname_Xinerama="libXinerama.$LIBEXT"
+  fi
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	ac_cv_lib_soname_Xinerama="libXinerama.$LIBEXT"
+fi
+
+rm -f core conftest.err conftest.$ac_objext \
+      conftest$ac_exeext conftest.$ac_ext
+  LIBS=$ac_get_soname_save_LIBS
+fi
+{ echo "$as_me:$LINENO: result: $ac_cv_lib_soname_Xinerama" >&5
+echo "${ECHO_T}$ac_cv_lib_soname_Xinerama" >&6; }
+if test "${ac_cv_lib_soname_Xinerama+set}" = set; then
+
+cat >>confdefs.h <<_ACEOF
+#define SONAME_LIBXINERAMA "$ac_cv_lib_soname_Xinerama"
+_ACEOF
+
+fi
+
   { echo "$as_me:$LINENO: checking for -lXrender soname" >&5
 echo $ECHO_N "checking for -lXrender soname... $ECHO_C" >&6; }
 if test "${ac_cv_lib_soname_Xrender+set}" = set; then
diff --git a/configure.ac b/configure.ac
index 541275a..954619a 100644
--- a/configure.ac
+++ b/configure.ac
@@ -328,6 +328,7 @@
                       X11/extensions/shape.h \
                       X11/extensions/XInput.h \
                       X11/extensions/XShm.h \
+                      X11/extensions/Xinerama.h \
                       X11/extensions/Xrandr.h \
                       X11/extensions/Xrender.h \
                       X11/extensions/xf86vmode.h],,,
@@ -388,6 +389,15 @@
                  [Define if Xrender has the XRenderSetPictureTransform function])],,
                 $X_LIBS -lXext -lX11 $X_EXTRA_LIBS)
         fi
+
+        dnl *** Check for Xinerama extension
+        if test "$ac_cv_header_X11_extensions_Xinerama_h" = "yes"
+        then
+                AC_TRY_COMPILE([#include <X11/Xlib.h>
+#include <X11/extensions/Xinerama.h>],[static typeof(XineramaQueryScreens) * func;],
+                  [AC_DEFINE(HAVE_LIBXINERAMA, 1, [Define if you have the Xinerama library])])
+        fi
+
     dnl *** End of X11/Xlib.h check
 
     dnl Check for the presence of OpenGL
@@ -1133,6 +1143,7 @@
   WINE_GET_SONAME(X11,XCreateWindow,[$X_LIBS $X_EXTRA_LIBS])
   WINE_GET_SONAME(Xext,XextCreateExtension,[$X_LIBS -lX11 $X_EXTRA_LIBS])
   WINE_GET_SONAME(Xi,XOpenDevice,[$X_LIBS -lXext -lX11 $X_EXTRA_LIBS])
+  WINE_GET_SONAME(Xinerama,XineramaQueryScreens,[$X_LIBS -lXext -lX11 $X_EXTRA_LIBS])
   WINE_GET_SONAME(Xrender,XRenderQueryExtension,[$X_LIBS -lXext -lX11 $X_EXTRA_LIBS])
   WINE_GET_SONAME(Xrandr,XRRQueryExtension,[$X_LIBS -lXext -lX11 $X_EXTRA_LIBS])
   WINE_GET_SONAME(freetype,FT_Init_FreeType,[$X_LIBS])
diff --git a/include/config.h.in b/include/config.h.in
index 3869898..ce6dd73 100644
--- a/include/config.h.in
+++ b/include/config.h.in
@@ -320,6 +320,9 @@
 /* Define to 1 if you have the `socket' library (-lsocket). */
 #undef HAVE_LIBSOCKET
 
+/* Define if you have the Xinerama library */
+#undef HAVE_LIBXINERAMA
+
 /* Define if you have the libxml2 library */
 #undef HAVE_LIBXML2
 
@@ -896,6 +899,9 @@
 /* Define to 1 if you have the <X11/extensions/xf86vmode.h> header file. */
 #undef HAVE_X11_EXTENSIONS_XF86VMODE_H
 
+/* Define to 1 if you have the <X11/extensions/Xinerama.h> header file. */
+#undef HAVE_X11_EXTENSIONS_XINERAMA_H
+
 /* Define to 1 if you have the <X11/extensions/XInput.h> header file. */
 #undef HAVE_X11_EXTENSIONS_XINPUT_H
 
@@ -1013,6 +1019,9 @@
 /* Define to the soname of the libXi library. */
 #undef SONAME_LIBXI
 
+/* Define to the soname of the libXinerama library. */
+#undef SONAME_LIBXINERAMA
+
 /* Define to the soname of the libXrandr library. */
 #undef SONAME_LIBXRANDR