Cannot find normal object file when compiling TH code

[Carter Schonwald]

You should maybe delete your pre cabal 1.18 ~/.cabal/config file and run
cabal update then merge back any important settings. I think cabal 1.18 by
default builds everything with dynamic-too

On Thursday, January 2, 2014, Yorick Laupa wrote:

> Except expected #7021 error message, it works on my machine (Archlinux
> x86_64) with --dynamic-too
>
>
> 2014/1/2 Carter Schonwald <carter.schonwald at gmail.com <javascript:_e({},
> 'cvml', 'carter.schonwald at gmail.com');>>
>
>> would --dynamic-too work too?
>>
>>
>> On Thu, Jan 2, 2014 at 5:36 PM, Yorick Laupa <yo.eight at gmail.com<javascript:_e({}, 'cvml', 'yo.eight at gmail.com');>
>> > wrote:
>>
>>> Hi Carter,
>>>
>>> Someone figured it out on #ghc. It seems we need to compile with
>>> -dynamic when having TH code now (
>>> https://ghc.haskell.org/trac/ghc/ticket/8180)
>>>
>>> About a snippet, I working on that ticket (
>>> https://ghc.haskell.org/trac/ghc/ticket/7021) so it's based on the
>>> given sample:
>>>
>>> -- Tuple.hs
>>> {-# LANGUAGE ConstraintKinds, TemplateHaskell #-}
>>>
>>> module Tuple where
>>>
>>> import Language.Haskell.TH
>>>
>>> type IOable a = (Show a, Read a)
>>>
>>> foo :: IOable a => a
>>> foo = undefined
>>>
>>> test :: Q Exp
>>> test = do
>>>     Just fooName <- lookupValueName "foo"
>>>     info         <- reify fooName
>>>     runIO $ print info
>>>     [| \_ -> 0 |]
>>> --
>>>
>>> -- Main.hs
>>> {-# LANGUAGE TemplateHaskell #-}
>>> module Main where
>>>
>>> import Tuple
>>>
>>> func :: a -> Int
>>> func = $(test)
>>>
>>> main :: IO ()
>>> main = print "hello"
>>>
>>> --
>>>
>>>
>>> 2014/1/2 Carter Schonwald <carter.schonwald at gmail.com<javascript:_e({}, 'cvml', 'carter.schonwald at gmail.com');>
>>> >
>>>
>>>> Did you build ghc with both static and dynamic libs? Starting in
>>>> 7.7/HEAD, ghci uses Dylib versions of libraries, and thus TH does too.
>>>>  What OS and architecture is this, and what commit is your ghc build from?
>>>>
>>>> Last but most importantly, if you don't share the code, we can't really
>>>> help isolate the problem.
>>>>
>>>>
>>>> On Thursday, January 2, 2014, Yorick Laupa wrote:
>>>>
>>>>> Hi,
>>>>>
>>>>> Oddly I can't compile code using TH with GHC HEAD. Here's what I get:
>>>>>
>>>>> cannot find normal object file ‛./Tuple.dyn_o’
>>>>>     while linking an interpreted expression
>>>>>
>>>>> I'm currently working on a issue so I compile the code with ghc-stage2
>>>>> for convenience.
>>>>>
>>>>> I found an old ticket related to my problem (
>>>>> https://ghc.haskell.org/trac/ghc/ticket/8443) but adding
>>>>> -XTemplateHaskell didn't work out.
>>>>>
>>>>> The code compiles with ghc 7.6.3.
>>>>>
>>>>> Here's my setup: Archlinux (3.12.6-1)
>>>>>
>>>>> Any suggestions ?
>>>>>
>>>>> --Yorick
>>>>>
>>>>>
>>>
>>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.haskell.org/pipermail/ghc-devs/attachments/20140102/aac1839e/attachment.html>