+math
+isfinite [test $HAVE_REMAINDER = 0 || test $REPLACE_REMAINDER = 1]
+signbit [test $HAVE_REMAINDER = 0 || test $REPLACE_REMAINDER = 1]
+fabs [test $HAVE_REMAINDER = 0 || test $REPLACE_REMAINDER = 1]
+fmod [test $HAVE_REMAINDER = 0 || test $REPLACE_REMAINDER = 1]
+isnand [test $HAVE_REMAINDER = 0 || test $REPLACE_REMAINDER = 1]
+isinf [test $HAVE_REMAINDER = 0 || test $REPLACE_REMAINDER = 1]