Error compiling after upgrade to swi-prolog 6.41

Hi,
after a swi-prolog upgrade (Debian), my program fails to compile.
It used to work with v6.2 and my code has not been modified since.

I have an error:

debiansid:~/Desktop/DEBIAN-MED/logol/logol-1.6.2.orig$ swipl -f
prolog/logol.pl

ERROR: Prolog initialisation failed:
ERROR: source_sink `library(dialect/assertions)' does not exist

I do not see however where this dialect/assetions come from, I do not
call it directly in my code.

Any hint?

Thanks

Olivier

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