Testing rule success

[David A. Greene]

Say I have a rule with an ignored-error action:

some_file:
        -$(DO_SOMETHING) > $@

Is there a way to test for existence of some_file from another rule?

For example:

some_rule : some_file
        $(if $(DO_EXISTENCE_TEST_HERE),$(DO_GOODSTUFF),$(DO_BADSTUFF))

$(wildcard some_file) doesn't always seem to be reliable.

Ideas?

                                -Dave