Re: ANN: Happstack 0.4.1

On 22/12/09 03:33, Antoine Latter wrote:

On Mon, Dec 21, 2009 at 6:31 AM, wrote:

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Hello,

That sort of missing symbol error at link time is often (but not always) a sign that some libraries got recompiled but not others. So there are references to the old symbol names hanging around.

I would try to ghc-pkg unregister syb-with-class and everything that depends on it, and then try cabal install happstack again.

I'm pretty well stumped at this point. I've cleared off everything and gone up to GHC 6.12 HEAD, and a 'cabal install happstack-data' gives me the same symbol not defined error in Happstack.Data.Xml.Base.

But here's the spooky part, if I run it by hand like so:

ghc --make src/Happstack/Data/Xml/Base.hs src/Happstack/Data/Default.hs src/Happstack/Data/ DeriveAll.hs src/Happstack/Data/Normalize.hs src/Happstack/Data/Migrate.hs

after resolving issues due to CPP not being run, everything runs to completion, no errors. Also, the list of things we're pulling in during the template-haskell execution is much smaller (see bellow).

Has anyone seen this, where template-haskell behaves different when run from cabal-install (or Setup.hs) than from ghc --make (or ghci)?

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2 of 5] Compiling Happstack.Data.Migrate ( src/Happstack/Data/Migrate.hs, src/Happstack/Data/Migrate.o ) [3 of 5] Compiling Happstack.Data.Default ( src/Happstack/Data/Default.hs, src/Happstack/Data/Default.o ) [4 of 5] Compiling Happstack.Data.DeriveAll ( src/Happstack/Data/DeriveAll.hs, src/Happstack/Data/DeriveAll.o ) [5 of 5] Compiling Happstack.Data.Xml.Base ( src/Happstack/Data/Xml/Base.hs, src/Happstack/Data/Xml/Base.o ) Loading package ghc-prim ... linking ... done. Loading package integer-gmp ... linking ... done. Loading package base ... linking ... done. Loading package ffi-1.0 ... linking ... done. Loading package array-0.3.0.0 ... linking ... done. Loading package bytestring-0.9.1.5 ... linking ... done. Loading package containers-0.3.0.0 ... linking ... done. Loading package pretty-1.0.1.1 ... linking ... done. Loading package syb-0.1.0.2 ... linking ... done. Loading package template-haskell ... linking ... done. Loading package syb-with-class-0.6.1 ... linking ... done. mkUsageInfo: internal name? Element{tc a4av} <<<<<

Did you submit a ticket for this? I don't recall seeing one. Cheers, Simon