Christoph Egger: > /usr/include/x86_64-kfreebsd-gnu/bits/siginfo.h:207:7: error: unknown type name '__lwpid_t'; did you mean '__pid_t'? > __lwpid_t threadid; Sounds like there's some issue with system headers. <bits/siginfo.h> is supposed to be including <sys/_types.h>, which in turn will provide __lwpid_t. Can you check? -- Robert Millan