-//SIGNATURE_CHECK (GNULIB_NAMESPACE::hypot, double, (double, double));
+#if GNULIB_TEST_HYPOTF
+SIGNATURE_CHECK (GNULIB_NAMESPACE::hypotf, float, (float, float));
+#endif
+#if GNULIB_TEST_HYPOT
+SIGNATURE_CHECK (GNULIB_NAMESPACE::hypot, double, (double, double));
+#endif
+#if GNULIB_TEST_HYPOTL
+SIGNATURE_CHECK (GNULIB_NAMESPACE::hypotl, long double,
+ (long double, long double));
+#endif
+
+#if GNULIB_TEST_ILOGBF
+SIGNATURE_CHECK (GNULIB_NAMESPACE::ilogbf, int, (float));
+#endif
+#if GNULIB_TEST_ILOGB
+SIGNATURE_CHECK (GNULIB_NAMESPACE::ilogb, int, (double));
+#endif
+#if GNULIB_TEST_ILOGBL
+SIGNATURE_CHECK (GNULIB_NAMESPACE::ilogbl, int, (long double));
+#endif