> Which won't even work on current versions of Debian GNU/Linux because the soname for libgmp changed. Again, my argument assumes that you're not upgrading to

> Which won't even work on current versions of Debian GNU/Linux because the soname for libgmp changed. Again, my argument assumes that you're not upgrading to current versions of things. Enterprise production-grade deployments often fix their OS version because of this. There's a reason RHEL is so far behind the most recent versions. If you are upgrading, then you'll be fixing these problems incrementally as you go along and it won't get out of hand. > No it doesn't. I had specified a dependency on a particular version of text You're making my point for me. It looks like you were probably depending on 0.11.1.4, which doesn't exist now. Your problem would not have happened if you had used an upper bound of "< 0.12" like the PVP says instead of locking down to one specific set of versions. If you had done that, cabal would have picked up subsequent 0.11 point releases which should have worked fine. Also, I can still download text-0.1 which is more than 5 years old.