Followup-For: Bug #857546 Hi,
libstrophe has got a fix on 4. July 2017 and I've submitted a corresponding bug reported [1]. So thanks to Dmitry Podgorny (pasis) there is no need anymore to make a package for a forked version. Hopefully development continues on the original libstrophe.
Regards, Andrey [1] https://bugs.debian.org/870053
