In upgrading old D code, one time consuming aspect is reworking code that
depends on old Phobos modules that have been taken out behind the woodshed and
shot. Sometimes, there's significantly more work involved than just renaming
things. Just to get things working, it's convenient to be able to use the old
modules until one has time to redo the code.
I've done this myself, and then noticed that Dmitry Olshansky had also done it
when updating DMDScript to D2.
Rather than having people keep duplicating others' efforts, I created the undeaD
library of zombie Phobos modules.
I'm new to dub, so if I botched that up, please do a pull request! Also, if
there are any other dead Phobos modules you'd like exhumed, PR's are welcome.