[mutter/wip/multitouch: 1/73] configure: Check for XInput2

[Carlos Garnacho <carlosg src gnome org>]

commit f5aab9398b30fa05f6c64d147ef4678dbab043a3
Author: Carlos Garnacho <carlosg gnome org>
Date:   Wed Jun 8 01:01:31 2011 +0200

    configure: Check for XInput2

 configure.in |   26 ++++++++++++++++++++++++++
 1 files changed, 26 insertions(+), 0 deletions(-)
---
diff --git a/configure.in b/configure.in
index 4b90287..a965121 100644
--- a/configure.in
+++ b/configure.in
@@ -225,6 +225,31 @@ if test x$have_xcursor = xyes; then
   AC_DEFINE(HAVE_XCURSOR, , [Building with Xcursor support])
 fi
 
+XINPUT2_VERSION=1.4.0
+
+AC_ARG_ENABLE(xinput2,
+  AC_HELP_STRING([--disable-xinput2],
+                 [disable XInput2 usage]),,
+  enable_xinput2=yes)
+
+if test x$enable_xinput2 = xyes; then
+  AC_MSG_CHECKING([XInput2])
+  if $PKG_CONFIG --atleast-version $XINPUT2_VERSION xi; then
+    have_xinput2=yes
+  else
+    have_xinput2=no
+  fi
+  AC_MSG_RESULT($have_xinput2)
+else
+  have_xinput2=no
+fi
+
+if test x$have_xinput2 = xyes; then
+  echo "Building with XInput2"
+  MUTTER_PC_MODULES="$MUTTER_PC_MODULES xi"
+  AC_DEFINE(HAVE_XINPUT2, , [Building with XInput2 support])
+fi
+
 PKG_CHECK_MODULES(MUTTER, $MUTTER_PC_MODULES)
 
 AC_PATH_XTRA
@@ -544,6 +569,7 @@ mutter-$VERSION
 	Shape extension:          ${found_shape}
 	Xsync:                    ${found_xsync}
 	Xcursor:                  ${have_xcursor}
+	XInput2:                  ${have_xinput2}
 "