-//SIGNATURE_CHECK (GNULIB_NAMESPACE::acos, double, (double));
-//SIGNATURE_CHECK (GNULIB_NAMESPACE::asin, double, (double));
-//SIGNATURE_CHECK (GNULIB_NAMESPACE::atan, double, (double));
-//SIGNATURE_CHECK (GNULIB_NAMESPACE::atan2, double, (double, double));
-//SIGNATURE_CHECK (GNULIB_NAMESPACE::cbrt, double, (double));
-//SIGNATURE_CHECK (GNULIB_NAMESPACE::copysign, double, (double, double));
-//SIGNATURE_CHECK (GNULIB_NAMESPACE::cos, double, (double));
-//SIGNATURE_CHECK (GNULIB_NAMESPACE::cosh, double, (double));
-//SIGNATURE_CHECK (GNULIB_NAMESPACE::erf, double, (double));
-//SIGNATURE_CHECK (GNULIB_NAMESPACE::erfc, double, (double));
-//SIGNATURE_CHECK (GNULIB_NAMESPACE::exp, double, (double));
-#if GNULIB_TEST_FABSF
-SIGNATURE_CHECK (GNULIB_NAMESPACE::fabsf, float, (float));
-#endif
-//SIGNATURE_CHECK (GNULIB_NAMESPACE::fabs, double, (double));
-//SIGNATURE_CHECK (GNULIB_NAMESPACE::fmod, double, (double, double));
-#if GNULIB_TEST_FREXP
-SIGNATURE_CHECK (GNULIB_NAMESPACE::frexp, double, (double, int *));
-#endif
-//SIGNATURE_CHECK (GNULIB_NAMESPACE::hypot, double, (double, double));
-//SIGNATURE_CHECK (GNULIB_NAMESPACE::j0, double, (double));
-//SIGNATURE_CHECK (GNULIB_NAMESPACE::j1, double, (double));
-//SIGNATURE_CHECK (GNULIB_NAMESPACE::jn, double, (int, double));
-//SIGNATURE_CHECK (GNULIB_NAMESPACE::ldexp, double, (double, int));
-//SIGNATURE_CHECK (GNULIB_NAMESPACE::lgamma, double, (double));
-//SIGNATURE_CHECK (GNULIB_NAMESPACE::log10, double, (double));
-//SIGNATURE_CHECK (GNULIB_NAMESPACE::log1p, double, (double));
-//SIGNATURE_CHECK (GNULIB_NAMESPACE::logb, double, (double));
-//SIGNATURE_CHECK (GNULIB_NAMESPACE::log, double, (double));
-//SIGNATURE_CHECK (GNULIB_NAMESPACE::modf, double, (double, double *));
-//SIGNATURE_CHECK (GNULIB_NAMESPACE::nextafter, double, (double, double));
-//SIGNATURE_CHECK (GNULIB_NAMESPACE::pow, double, (double, double));
-//SIGNATURE_CHECK (GNULIB_NAMESPACE::remainder, double, (double, double));
-//SIGNATURE_CHECK (GNULIB_NAMESPACE::rint, double, (double));
-//SIGNATURE_CHECK (GNULIB_NAMESPACE::sin, double, (double));
-//SIGNATURE_CHECK (GNULIB_NAMESPACE::sinh, double, (double));
-//SIGNATURE_CHECK (GNULIB_NAMESPACE::sqrt, double, (double));
-//SIGNATURE_CHECK (GNULIB_NAMESPACE::tan, double, (double));
-//SIGNATURE_CHECK (GNULIB_NAMESPACE::tanh, double, (double));
-//SIGNATURE_CHECK (GNULIB_NAMESPACE::y0, double, (double));
-//SIGNATURE_CHECK (GNULIB_NAMESPACE::y1, double, (double));
-//SIGNATURE_CHECK (GNULIB_NAMESPACE::yn, double, (int, double));