[mercury-users] try_io on x86-64

[Michael Day]

Hi Julien,

> Mercury is primarily developed on Linux x86-64 systems these days; we
> haven't noticed any problems with try_io.

I can reproduce the bug with the program below and rotd-2008-01-30, but 
only when building with some optimisations enabled:

$ mmc --make try -O3 --intermodule-optimisation
Mercury/os/try.o:(.rodata+0x310): undefined reference to `<predicate 
'exception.wrap_success_or_failure'/2 mode 0>'
collect2: ld returned 1 exit status

--------------------------------
:- module try.

:- interface.

:- import_module io.

:- pred main(io, io).
:- mode main(di, uo) is cc_multi.

:- implementation.

:- import_module int, exception.

main(!IO) :-
     try_io(test, Res, !IO),
     write(Res, !IO), nl(!IO).

:- pred test(int, io, io).
:- mode test(out, di, uo) is det.

test(17, !IO).
--------------------------------

Can you see if this error still manifests in the latest version?

Cheers,

Michael

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