I'm deeply sorry I will have to retire yap package because:
It crashes on i686 after updating GCC to 7
<
https://bugzilla.redhat.com/show_bug.cgi?id=1421711>.
Last stable version is 7 years old (we have it in Fedora).
Last development version is 4 years old (Jerry James tried to update
but it does not work with non-lazy linking) and it fails on i686 too
<
https://koji.fedoraproject.org/koji/taskinfo?taskID=18014527>.
Upstream does not respond
<
https://sourceforge.net/p/yap/mailman/message/35663387/> and playing
with the code reveals other bugs like signed interger overflows or
linkage failure with disabled optimizations because of wrong inlining.
Finally I don't understand the code especially the stack-based
interpreter.
The only reverse dependency is ppl where the yap support is optional.
If there is nobody who wants to adopt the yap, I will retire it in
a week.
-- Petr