#if GNULIB_TEST_LOGF
SIGNATURE_CHECK (GNULIB_NAMESPACE::logf, float, (float));
#endif
-//SIGNATURE_CHECK (GNULIB_NAMESPACE::log, double, (double));
+#if GNULIB_TEST_LOG
+SIGNATURE_CHECK (GNULIB_NAMESPACE::log, double, (double));
+#endif
#if GNULIB_TEST_LOGL
SIGNATURE_CHECK (GNULIB_NAMESPACE::logl, long double, (long double));
#endif