Rebuilding ghc changes interface hashes?

Joachim Breitner nomeata at
Tue Apr 5 18:29:23 CEST 2011

Dear ghc developers,

I am currently rebuilding ghc-7.0.2 to upload some packaging changes.
Unfortunately, this had the effect of changing the package id of "base",
which would require rebuilding every Haskell library.

In the times of ghc-6.12, rebuilding the compiler left the hashes
intact. Is there anything new in ghc-7 that interferes here?

Also, the initial upload was built using ghc-6.12.1, while the upload
now is build with ghc-7.0.2. Given that it is a two-stage compiler, I
assume that the output should be identical, but it seems not to be the

Any idea what could be causing this?


Joachim "nomeata" Breitner
Debian Developer
  nomeata at | ICQ# 74513189 | GPG-Keyid: 4743206C
  JID: nomeata at |
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