On 20 Apr 2022, at 10:17, Marc Nieper-Wißkirchen <xxxxxx@gmail.com> wrote:

> With Chibi 0.9, all tests pass; with Chibi 0.10 it's broken. What
> change between 0.9 and 0.10 may be responsible?

I ran Git bisect between the 0.9 tag and HEAD, rebuilding Chibi from scratch each time and then running the sample implementation test suite. It identified this commit as the culprit:

> 42aab7905c8420e7c5475b67f286e87a730a7873 is the first bad commit
> commit 42aab7905c8420e7c5475b67f286e87a730a7873
> Author: Alex Shinn <xxxxxx@gmail.com>
> Date:   Mon Apr 19 10:27:46 2021 +0900
>
>     enable SEXP_USE_STRICT_TOPLEVEL_BINDINGS by default (issue #699)
>
>  include/chibi/features.h | 16 ++++++++++++++--
>  1 file changed, 14 insertions(+), 2 deletions(-)

I should note that the commits without the crash fail one test anyway:

> %%%% Starting test SRFI 148  (Writing full log to "SRFI 148.log")
> FAIL em-cute: without ...
> # of expected passes      141
> # of unexpected failures  1

I marked them good nonetheless since that’s not the bug I was investigating.

Daphne