diff --git a/configure b/configure
index f3eca4e..2e1357a 100755
--- a/configure
+++ b/configure
@@ -168,6 +168,10 @@ common_defaults()
 native_defaults()
 {
 	# toolchain
+	if [ x"$CC" != x ]; then
+		$CC -dM -E - < /dev/null > /dev/null || exit 2
+	fi
+
 	[ -z "$mb_native_cc" ] && mb_native_cc=$CC
 	[ -z "$mb_native_cc" ] && mb_native_cc='cc'
 	$mb_native_cc -dM -E - < /dev/null > /dev/null 2>/dev/null || mb_native_cc=