[m-users.] Error making c file after upgrading to Mercury 22.01

[Dirk Ziegemeyer]

Hi Mark, Peter and Zoltan,

thank you for your help.

I boiled my module down and finally found the issue. It was a missing module qualification.

I just opened Mantis bug #557 together with a minimal test case to reproduce the error.

The Mercury compiler almost always emits error messages that are really helpful for debugging. It is a pleasure to use the Mercury compiler.

Cheers,

Dirk


> Am 10.04.2022 um 06:43 schrieb Mark Brown <mark at mercurylang.org>:
> 
> Hi Dirk,
> 
> On Sun, Apr 10, 2022 at 4:16 AM Dirk Ziegemeyer <dirk at ziegemeyer.de> wrote:
>> 
>> At first, I want to thank you for providing Mercury 22.01.
>> 
>> Uprading a module from Mercury 20.06 to 22.01 on MacOS Catalina fails and I don't know where to find debugging hints.
> 
> The new compiler may be confused by old generated files. If you
> haven't already done so, you can remove them with, e.g.:
> 
>  mmc --make foo.clean
> 
> or
> 
>  mmc --make foo.realclean
> 
> Cheers,
> Mark
> 
>> 
>> The compiler gives me these log messages:
>> 
>> $ mmc --make foo
>> Making Mercury/int3s/foo.int3
>> Making Mercury/int3s/bar.int3
>> Making Mercury/ints/bar.int
>> Making Mercury/ints/foo.int
>> Making Mercury/hlc.gc/x86_64-apple-darwin19.6.0/Mercury/cs/bar.c
>> ** Error making `Mercury/hlc.gc/x86_64-apple-darwin19.6.0/Mercury/cs/bar.c'.
>> make: *** [foo] Error 1
>> 
>> The files foo.err and bar.err are both empty.
>> 
>> Calling mmc with option -E does not provide any more information.
>> 
>> Other modules within this repository compile successfully with Mercury 22.01. Julien’s mercury-csv library, which my module depends on, compiles and installs successfully with Mercury 22.01.
>> The same situation happens with mercury-rotd-2022-04-07.
>> 
>> Unfortunately, I don't know where too find more information on how to debug this, because the .err files are empty.
>> 
>> I would appreciate any help on how to debug this kind of error.
>> 
>> Dirk
>> 
>> 
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