The presence of the o-acute makes mb_str() fail and depsTimeStamp() receives a pointer to an empty string. Does CB call setlocale(LC_CTYPE, "") somewhere at startup? If it does not, wxString::mb_str() will be limited to plain ASCII (default "C" locale), at least on linux. Even if depslib accepted wide chars, it would have to convert them to the users locale at some point, facing the same issues.
The presence of the o-acute makes mb_str() fail and depsTimeStamp() receives a pointer to an empty string. Does CB call setlocale(LC_CTYPE, "") somewhere at startup? If it does not, wxString::mb_str() will be limited to plain ASCII (default "C" locale), at least on linux.