[Haskell-cafe] Error when building executable with profiling enabled

[Krzysztof Skrzętnicki]

You are using TemplateHaskell (-fth switch) which can be tricky. Please see
this documentation on profiling with TH:
http://www.haskell.org/ghc/docs/7.6.1/html/users_guide/template-haskell.html#id624714.
Other than following the documentation I would recommend using Cabal
which handles the necessary flags and double-compilation process itself.

Best regards,
Krzysztof Skrzętnicki


On Fri, Apr 5, 2013 at 4:41 PM, Nikolaos Bezirgiannis <bezirg at gmail.com>wrote:

>
> Hello,
>
> i have an executable where i want to run profiling on.
>
> I do:
>
> ghc --make -prof -auto-all -fth Custom.hs
>
> but it does not built and the output is:
>
> bench\HLogo\Custom\Custom.hs:1:1:
>     Dynamic linking required, but this is a non-standard build (eg. prof).
>     You need to build the program twice: once the normal way, and then
>     in the desired way using -osuf to set the object file suffix.
>
> I tried googling on the error with no success. What can I do to
> compile this file for profiling?
>
> Cheers,
> Nikos
>
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