diff -uNr anjuta-3.8.0.old/configure.ac anjuta-3.8.0/configure.ac
--- anjuta-3.8.0.old/configure.ac	2013-03-25 05:32:20.000000000 +0100
+++ anjuta-3.8.0/configure.ac	2013-03-30 21:56:06.603174301 +0100
@@ -285,11 +285,14 @@
 else
         AC_MSG_RESULT(no)
 	AC_MSG_CHECKING(if libvala is available)
-	PKG_CHECK_EXISTS([ libvala-0.18 ],
-			 [ valaver="-0.18" ],
-			 [ PKG_CHECK_EXISTS([ libvala-0.16 ],
-					    [ valaver="-0.16" ],
-					    [ valaver="" ])
+	PKG_CHECK_EXISTS([ libvala-0.20 ],
+			 [ valaver="-0.20" ],
+			 [ PKG_CHECK_EXISTS([ libvala-0.18 ],
+		       			    [ valaver="-0.18" ],
+					    [ PKG_CHECK_EXISTS([ libvala-0.16 ],
+							       [ valaver="-0.16" ],
+							       [ valaver="" ])
+					    ])
 			 ])
 	if test "x$valaver" != "x"; then
 		AC_MSG_RESULT(yes)