dnl Determine RINTL_LIBM.
gl_MATHFUNC([rintl], [long double], [(long double)])
if test $gl_cv_func_rintl_no_libm = no \
&& test $gl_cv_func_rintl_in_libm = no; then
HAVE_RINTL=0
dnl Determine RINTL_LIBM.
gl_MATHFUNC([rintl], [long double], [(long double)])
if test $gl_cv_func_rintl_no_libm = no \
&& test $gl_cv_func_rintl_in_libm = no; then
HAVE_RINTL=0