[Haskell-cafe] Dynamic loading of module

Sun Aug 28 22:40:03 CEST 2011

Hello Albert,
Thanks for taking the time to help me fix this package stuff. So I wiped out
my package.conf.d/ and tried to reinstall my stuff. Installing
template-haskell 2.5.0.0 is ok (2.6 is not, fails to compile on ghc 7.0.3)
but then:

D:\projets\>ghc --make -package ghc main
<command line>: cannot satisfy -package ghc
    (use -v for more information)

I suspect I really *do* have to reinstall haskell-platform. Here is the
output of ghc-pkg list -v:

using cache: C:\Documents and Settings\abailly\Application
Data\ghc\i386-mingw32-7.0.3\package.conf.d\package.cache
using cache: D:/Program Files/Haskell
Platform/2011.2.0.1\lib\package.conf.d\package.cache
D:/Program Files/Haskell Platform/2011.2.0.1\lib\package.conf.d:
    Cabal-1.10.1.0 (Cabal-1.10.1.0-55f781465ee9f32289755ad706c71f0f)
    GLUT-2.1.2.1 (GLUT-2.1.2.1-2d30997b9a19d27be388572e75af52bf)
    HTTP-4000.1.1 (HTTP-4000.1.1-267a332938fa742ba5a5d59de0b46d60)
    HUnit-1.2.2.3 (HUnit-1.2.2.3-102fbfbd594cd6d38461f5c68d880996)
    OpenGL-2.2.3.0 (OpenGL-2.2.3.0-a58ce3ad6070e6b7932a3e779be57f75)
    Win32-2.2.0.1 (Win32-2.2.0.1-26cf39fdf591bdac61b11d5a443c62ab)
    array-0.3.0.2 (array-0.3.0.2-8e9cd0144e87fa9cc86cc9031631c4f3)
    base-4.3.1.0 (base-4.3.1.0-f520cd232cc386346843c4a12b63f44b)
    bin-package-db-0.0.0.0
(bin-package-db-0.0.0.0-97d865e5935b41538bcb29fc1040ae7d)
    bytestring-0.9.1.10
(bytestring-0.9.1.10-cd85f14e02463c02ba4c77d7adcdb54f)
    cgi-3001.1.7.4 (cgi-3001.1.7.4-659440ce11c2975fd9c9c471a1e8ff3b)
    containers-0.4.0.0 (containers-0.4.0.0-18deac99a132f04751d862b77aab136e)
    deepseq-1.1.0.2 (deepseq-1.1.0.2-09b3aed0c4982bbc6569c668100876fa)
    directory-1.1.0.0 (directory-1.1.0.0-3a2367d72569467a8af8a231656ff1b8)
    extensible-exceptions-0.1.1.2
(extensible-exceptions-0.1.1.2-d8c5b906654260efd7249f497d17a831)
    ffi-1.0 (builtin_ffi)
    fgl-5.4.2.3 (fgl-5.4.2.3-595811d6eabb1e1768685703ea66e982)
    filepath-1.2.0.0 (filepath-1.2.0.0-f132e9f7703da4e20a47ff2b9acf1ea1)
    (ghc-binary-0.5.0.2
(ghc-binary-0.5.0.2-aba2b5dca5546ea1a972188de48f87b5))
    ghc-prim-0.2.0.0 (ghc-prim-0.2.0.0-e1f7c380581d61d42b0360d440cc35ed)
    haskell-src-1.0.1.4
(haskell-src-1.0.1.4-7428a8c9049cd6bf5abdc0bbd2d417c5)
    (haskell2010-1.0.0.0
(haskell2010-1.0.0.0-53d9cd65595c551eea0c0269f534b5e0))
    haskell98-1.1.0.1 (haskell98-1.1.0.1-35ec26bae828637c1638c8be441b3d68)
    hpc-0.5.0.6 (hpc-0.5.0.6-481dbb43fb624c21ad3bb9434675e3ac)
    html-1.0.1.2 (html-1.0.1.2-a494249f98a0f38b1a8db28bc70f8b0b)
    integer-gmp-0.2.0.3
(integer-gmp-0.2.0.3-91607778cf3ae8f3948a50062b4f8479)
    mtl-2.0.1.0 (mtl-2.0.1.0-fb4d1695269b74308c1517c06b76e6e8)
    network-2.3.0.2 (network-2.3.0.2-47657e39a6118a978d9f443d72e85d4a)
    old-locale-1.0.0.2 (old-locale-1.0.0.2-6e2a3c0744e8cf4e0ac2d4e58659f7b5)
    old-time-1.0.0.6 (old-time-1.0.0.6-445ce39cbcebd38069c25c0f383b728d)
    parallel-3.1.0.1 (parallel-3.1.0.1-6eaa564e1ef1537bc88ad1fea6c90fe2)
    parsec-3.1.1 (parsec-3.1.1-9da59b00c02e52f9f62f3c87c7e0e2ec)
    pretty-1.0.1.2 (pretty-1.0.1.2-abc7c632374e50e1c1927987c2651f0f)
    process-1.0.1.5 (process-1.0.1.5-b3dded8e54a2e13d22af410bdcfafff4)
    random-1.0.0.3 (random-1.0.0.3-1abde37180be5476311abeefe300abc2)
    regex-base-0.93.2 (regex-base-0.93.2-9e1b027c41dbec856469a30982495bb9)
    regex-compat-0.93.1
(regex-compat-0.93.1-31c61fe0aee45e8a9853edf7a844f74e)
    regex-posix-0.94.4 (regex-posix-0.94.4-f5eb628ea5dae5f91552d5ea0e26359d)
    rts-1.0 (builtin_rts)
    stm-2.2.0.1 (stm-2.2.0.1-57e291244ee02349552a4f79caeb4ffe)
    syb-0.3 (syb-0.3-8db7bc4339a1cb8a6f2a46c40447ef0b)
    text-0.11.0.6 (text-0.11.0.6-398a3f02891247aea46662fc7379c4a5)
    time-1.2.0.3 (time-1.2.0.3-74ef6ac31cee9aec02b036978af002d2)
    transformers-0.2.2.0
(transformers-0.2.2.0-2fe7b735c63a6cbe8724038d8e4d812a)
    xhtml-3000.2.0.1 (xhtml-3000.2.0.1-ace31b2e48c396e565655b0f34f5d2b7)
    zlib-0.5.3.1 (zlib-0.5.3.1-5fbdf714525b76e0e601c2ffb25f2044)

C:\Documents and Settings\abailly\Application
Data\ghc\i386-mingw32-7.0.3\package.conf.d:
    QuickCheck-2.4.1.1 (QuickCheck-2.4.1.1-04d68679694a517ba23022a4c6bc1cde)
    ghc-paths-0.1.0.8 (ghc-paths-0.1.0.8-be391faf057d651dbb92b73671fe9eee)
    template-haskell-2.5.0.0
(template-haskell-2.5.0.0-87f4f416a22a910e480ac9f269479a5f)
    utf8-string-0.3.7 (utf8-string-0.3.7-dcbcb8de655cdfe1c4c28c094f8c6799)

Thanks again,
Arnaud

On Sat, Aug 27, 2011 at 8:59 PM, Albert Y. C. Lai <trebla at vex.net> wrote:

> You have too many instances of template-haskell. The important parts are:
>
>
> package ghc-7.0.3-**fc75cf67c86ba2c0d64b07024a18d3**b4 is unusable due to
> missing or recursive dependencies:
>  template-haskell-2.5.0.0-**7d9b1443ac5ab69e5ed705a487990d**eb
>
> package template-haskell-2.5.0.0-**7d9b1443ac5ab69e5ed705a487990d**eb is
> shadowed by package template-haskell-2.5.0.0-**
> 87f4f416a22a910e480ac9f269479a**5f
>
> and in "ghc-pkg list -v":
>
> D:/Program Files/Haskell Platform/2011.2.0.1\lib\**package.conf.d:
>
>
>   template-haskell-2.5.0.0 (template-haskell-2.5.0.0-**
> 7d9b1443ac5ab69e5ed705a487990d**eb)
>
> C:\Documents and Settings\abailly\Application Data\ghc\i386-mingw32-7.0.3\
> **package.conf.d:
>
>
>    template-haskell-2.5.0.0 (template-haskell-2.5.0.0-**
> 87f4f416a22a910e480ac9f269479a**5f)
>
> I don't know how you got to this unsafe state. But my article explains
> what's wrong with it. (Though my example has different version numbers on
> top of different ABI hashes).
>
> The user instance of template-haskell (**87f4f416a22a910e480ac9f269479a**5f)
> is getting into the way. Lose it by doing "ghc-pkg unregister --user
> template-haskell" on it. Oh, it will complain about breaking other packages;
> well, lose them too.
>
> (Or go one step further and lose all of C:\Documents and
> Settings\abailly\Application Data\ghc\i386-mingw32-7.0.3\**package.conf.d
> which means losing all user packages.)
>
> (Reinstalling haskell platform changes nothing, as long as some user
> package gets into the way.)
>
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