[Bug ada/83027] Hang when attaching a SIGINT handler

[porton at narod dot ru]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83027

--- Comment #16 from Victor Porton <porton at narod dot ru> ---
I've discovered that Ahven source uses tasking.

So it is most likely some tasking problem with Ahven.