Problem with using BNF converter tool

Simon Marlow simonmar at microsoft.com
Tue Feb 17 10:42:18 EST 2004


 
> I am sending this here and not to the bugs list under the 
> assumption that I am 
> doing something wrong...
> 
> I am trying to use the BNF converter tool. When I try it on 
> simple examples, the 
> first step (generation of the .y and .x files) goes through. 
> When I run happy on 
> the generated .y file, I get the following error:
> 
> happy.bin: internal error: stg_ap_pp_ret
>     Please report this as a bug to glasgow-haskell-bugs at haskell.org,
>     or http://www.sourceforge.net/projects/ghc/
> 
> Any help/guidance would be very appreciated.

This should never happen.  Details please:  what version of GHC, did you
compile Happy from source or download binaries, if source: which
version, can you send us the complete .y input to Happy, and anything
else that might be relevant.  Basically anything we need to reproduce
the bug here.

Cheers,
	Simon


More information about the Glasgow-haskell-users mailing list