ffi-1.0 causes panic in 6.12.20091010

[tobsan]

After upgrading GHC to 6.12, any Haskell file I try to compile yields this result:

tobsan@magrathea ~/programming/HQmpd/src $ ghci Test.hs
GHCi, version 6.12.0.20091010: http://www.haskell.org/ghc/  :? for help
Loading package ghc-prim ... linking ... done.
Loading package integer-gmp ... linking ... done.
Loading package base ... linking ... done.
ghc-stage2: This ELF file contains no symtab
Loading package ffi-1.0 ... ghc-stage2: panic! (the 'impossible' happened)
  (GHC version 6.12.0.20091010 for x86_64-unknown-linux):
	loadObj: failed

Please report this as a GHC bug:  http://www.haskell.org/ghc/reportabug

tobsan@magrathea ~/programming/HQmpd/src $ cat Test.hs 
module Test where

hej = print "Hej"

[tobsan]

Noticed that it's called FFI and not FFF

[igloo]

Thanks for the report. Unfortunately, I can't reproduce this. Did you build GHC yourself, or use one of the binary downloads? Do you have any idea of anything special about your system that might give a clue as to the problem?

[tobsan]

This was built by myself, sort of. I emerged it on gentoo.
The only peculiar USE flag used was ghcbootstrap, which was needed in order for GHC to build at all. Maybe this is a gentoo-specific bug, and in that case I have already spoken to the guys maintaining gentoo-haskell.

[kosmikus]

This is almost certainly a duplicate of #3580. As far as I know, Gentoo also strips all files by default, and this for some reason turns out to be harmful to ghci in this case.

[igloo]

Thanks, kosmikus. Looks likely you're right, so I'm closing this as a duplicate.