Recent HEAD breakage in libraries/base/Data/Maybe.hs:67:7

[Karel Gardas]

Hello,

yesterday night build of HEAD fails with:

libraries/base/Data/Maybe.hs:67:7:
Can't find interface-file declaration for data constructor GHC.Generics.Inl
Probable cause: bug in .hi-boot file, or inconsistent .hi file
Use -ddump-if-trace to get an idea of which file caused the error
In the pattern: GHC.Generics.Inl (g2 :: GHC.Generics.Unit)
In a case alternative:
GHC.Generics.Inl (g2 :: GHC.Generics.Unit) -> Nothing
In the expression:
case g1 of {
GHC.Generics.Inl (g2 :: GHC.Generics.Unit) -> Nothing
GHC.Generics.Inr g2 -> Just g2 }
libraries/base/Data/Maybe.hs:67:7:
Can't find interface-file declaration for data constructor GHC.Generics.Inl
Probable cause: bug in .hi-boot file, or inconsistent .hi file
Use -ddump-if-trace to get an idea of which file caused the error
In the expression: GHC.Generics.Inl GHC.Generics.Unit
In an equation for `Data.Maybe.$gfromMaybe':
Data.Maybe.$gfromMaybe Nothing = GHC.Generics.Inl GHC.Generics.Unit
gmake[1]: *** [libraries/base/dist-install/build/Data/Maybe.o] Error 1
gmake: *** [all] Error 2

on OpenSolaris, FreeBSD and MacOS X builders:

http://darcs.haskell.org/ghcBuilder/builders/kgardas-opensolaris-x86-head/135/8.html
http://darcs.haskell.org/ghcBuilder/builders/pgj/277/8.html
http://darcs.haskell.org/ghcBuilder/builders/tn23/261/8.html

I'm reporting this since it might be overlooked by the Team since 
surprisingly simon's hosts do not report this failure and build HEAD 
just fine.

Thanks,
Karel