- if test "$ac_cv_have_decl_floorl" = yes &&
- test "$ac_cv_have_decl_ceill" = yes; then
- gl_CHECK_MATH_LIB([ROUNDL_LIBM], [x = floorl (x) + ceill (x);])
+ if test "$ac_cv_have_decl_floorl" = yes \
+ && test "$ac_cv_have_decl_ceill" = yes; then
+ gl_FUNC_FLOORL_LIBS
+ gl_FUNC_CEILL_LIBS
+ if test "$FLOORL_LIBM" != '?' && test "$CEILL_LIBM" != '?'; then
+ AC_DEFINE([HAVE_FLOORL_AND_CEILL], [1],
+ [Define if the both the floorl() and ceill() functions exist.])
+ ROUNDL_LIBM="$FLOORL_LIBM $CEILL_LIBM"
+ else
+ ROUNDL_LIBM=
+ fi