impossible internal bug while building darcs
[ghc] src/Exec.o
ghc: panic! (the 'impossible' happened)
(GHC version 6.10.1 for i386-unknown-linux):
applyTypeToArgs
unix-2.3.1.0:System.Posix.Signals.a38{v r8P} [gid]
(unix-2.3.1.0:System.Posix.Signals.a5{v r8O} [gid]
`cast` (ghc-prim:GHC.Prim.sym{(w) tc 34v}
base:Foreign.C.Types.:CoCInt{tc r4P}
:: <pred>base:GHC.Int.Int32{tc 3V}
~
<nt>base:Foreign.C.Types.CInt{tc r4S}))
unix-2.3.1.0:System.Posix.Signals.Ignore{v r8N} [gid]
(base:Data.Maybe.Nothing{v r4K} [gid]
@ <nt>unix-2.3.1.0:System.Posix.Signals.SignalSet{tc r8M})
eta{v a1Vy} [lid]
(# ghc-prim:GHC.Prim.State#{(w) tc 32q}
ghc-prim:GHC.Prim.RealWorld{(w) tc 31E},
<nt>unix-2.3.1.0:System.Posix.Signals.SignalSet{tc r8M} #)
Please report this as a GHC bug: http://www.haskell.org/ghc/reportabug
While building darcs 2.2.0.