Then I am going to try to patch it. Unfortunately, I have very limited C knowledge. But when I have managed, I will post the patch on ITS.
I used to be the unofficial maintainer of back-sql; I haven't needed it for years, and lack of time does not allow me to take care of it, let alone the fact that a portable and RDBMS-neutral back-sql is a mess and a nightmare. I don't even have a test environment handy. I hope someone interested in its survival takes it over.
Thanks for your try. p.