[Build] Always assume net_4_6 is available at build time on Windows.

Author: Therzok

configure.in.in

@@ -112,6 +112,8 @@ if test "x$has_mono" = "xfalse" ; then
 	PKG_CHECK_MODULES(MONO_DEPENDENCY, mono-2 >= $MONO_REQUIRED_VERSION, has_mono=true, has_mono=false)
 	if "x$has_mono" = "xtrue" ; then
 		PKG_CHECK_MODULES(MONO_DEPENDENCY, mono < $MONO_NET_4_6, missing_net_4_6=true, missing_net_4_6=false)
+	else
+		missing_net_4_6=true
 	fi
 else
 	PKG_CHECK_MODULES(MONO_DEPENDENCY, mono < $MONO_NET_4_6, missing_net_4_6=true, missing_net_4_6=false)