fabs [{ test $HAVE_FABSL = 0 || test $REPLACE_FABSL = 1; } && test $HAVE_SAME_LONG_DOUBLE_AS_DOUBLE = 1]
signbit [{ test $HAVE_FABSL = 0 || test $REPLACE_FABSL = 1; } && test $HAVE_SAME_LONG_DOUBLE_AS_DOUBLE = 0]
fabs [{ test $HAVE_FABSL = 0 || test $REPLACE_FABSL = 1; } && test $HAVE_SAME_LONG_DOUBLE_AS_DOUBLE = 1]
signbit [{ test $HAVE_FABSL = 0 || test $REPLACE_FABSL = 1; } && test $HAVE_SAME_LONG_DOUBLE_AS_DOUBLE = 0]