SIGNATURE_CHECK (GNULIB_NAMESPACE::log10l, long double, (long double));
#endif
-//SIGNATURE_CHECK (GNULIB_NAMESPACE::log1p, double, (double));
+#if GNULIB_TEST_LOG1P
+SIGNATURE_CHECK (GNULIB_NAMESPACE::log1p, double, (double));
+#endif
//SIGNATURE_CHECK (GNULIB_NAMESPACE::logb, double, (double));