Hi Thorkil,
Attached a tar file with what I believe you are asking for. In addition to
Package.hcr, multiple1.txt explains in more detail what I did. The remaining
files may also be useful.
And I just tried scons build yhc without the type=release, so that the ghc
compiles become without -O. And now the correct "Not found" message is
produced. So the case leans definitely towards an error in the ghc-6.6 that I
am using.
That does look like an error, and it doesn't lean towards an error in
the generated core, as the release build goes from the same core. I
just downloaded 6.6 on this machine and rebuilt Yhc, and it works
perfectly on x86. I guess that points at a GHC bug in the code
generator.
I've just added some code so it now reads:
case (local,res) of
([x], _) -> return x
(_, [x]) -> return x
([], []) -> raiseError $ ErrorFileNone noErrPos askMsg file rs
(as, bs) ->
-- ASSERTION TO DEBUG GHC 6.6 WITHOUT -O CODEGEN ON A MAC!
assert (not $ null $ as ++ bs) $
raiseError $ ErrorFileMany noErrPos askMsg file (map anyOne (as ++ bs))
That (to me) looks like an assertion that should always be true, but
which appears at first glance to be being violated by GHC 6.6 on a Mac
when compiled without -O. Can you try that on your machine, and see if
it does raise an assertion? If it does, we can then contact the GHC
developers and let them get a minimal test case :)
Thanks
Neil
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