[Autotools] Run rvalue references test required by debugallocator.hh

The behavior of DebugAllocator depends on whether the compiler supports
rvalue references, so make sure to run the corresponding test.

m4/dune_common.m4

@@ -23,6 +23,7 @@ AC_DEFUN([DUNE_COMMON_CHECKS],
   AC_REQUIRE([NULLPTR_CHECK])
   AC_REQUIRE([SHARED_PTR])
   AC_REQUIRE([VARIADIC_TEMPLATES_CHECK])
+  AC_REQUIRE([RVALUE_REFERENCES_CHECK])
   AC_REQUIRE([DUNE_BOOST_BASE])
   AC_REQUIRE([MAKE_SHARED])
   AC_REQUIRE([DUNE_LINKCXX])