On Tue, Nov 6, 2012 at 8:34 PM, Emmanuel Touzery <etouzery@gmail.com> wrote:

well it certainly requires will to build with profiling.
i had to reinstall all my cabal packages with profiling enabled, which i finally managed to do now..

and now it tells me:
ghc -prof -auto-all Prog.hs

    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.

Ah well.. I'll fight some more with this later. Not exactly "out of the box"...

Emmanuel

On Tue, Nov 6, 2012 at 1:02 PM, Ozgur Akgun <ozgurakgun@gmail.com> wrote:

Hi Emmanuel,

It is indeed good practice to write total programs in general. However, I understand the need for stack traces in practice.

There are some slides by Simon Marlow on the issue, ironically using your example in the title.

In short: check the -xc flag in http://www.haskell.org/ghc/docs/7.0.1/html/users_guide/runtime-control.html

Hope this helps,
Ozgur