An Issue With Execute Alternate Under OpenBSD, Library Suggestions, and Debugging Help

[Programmer]

I've constructed a basic example which crashes GNU APL under OpenBSD; it 
explains the cause, but the
notice may still be valuable:

      '1'⎕EA'1÷0'
Cannot show function call stack since execinfo.h seems not to exist on this OS 
(WINDOWs ?).

Process apl finished

I'm also interested in having some of my programs listed in the GNU APL 
Community page.  Follows are
the relevant pages; there's another article, 2017-02-02, but this may be 
considered too vulgar:

  http://verisimilitudes.net/2019-08-08
gopher://verisimilitudes.net/12019-08-08
  http://verisimilitudes.net/2019-12-06
gopher://verisimilitudes.net/12019-12-06

My relevant code should all be classified as L1 portability, as I strive for 
portable and so correct
APL programs.  The programs are all licensed under the AGPLv3.  Another reason 
I send a message here
is because I'm having issues debugging my 2020-02-20, which I'd also care to 
have included once I've
finished correcting it.  The ⎕TRACE doesn't provide enough information for me 
and I'm unaware of how
to properly use ⎕STOP, managing to crash GNU APL under OpenBSD whilst using it. 
 I'd appreciate help
in using these two commands to their fullest, if one is willing to offer it.