Bug#964577: Undefined behaviour

[Peter Van Eynde <pvaneynd@debian.org>]

Hi,

Sorry wanted to close, but forgot to use done.

So I opened a bug with upstream:
https://bugs.launchpad.net/sbcl/+bug/2126919 and turns out this is
undefined behaviour:

>It is not legal. From
>https://www.lispworks.com/documentation/HyperSpec/Body/m_w_in_f.htm
>
>"The input string stream to which the variable var is bound has dynamic
>extent; its extent ends when the form is exited."
>
>Same for the values of variables bound by WITH-OUTPUT-TO-STRING,
>WITH-OPEN-STREAM, WITH-OPEN-FILE.

Closing as such.

Best regards, Peter