https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78267
Maxim Ostapenko <m.ostapenko at samsung dot com> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |m.ostapenko at samsung dot com --- Comment #1 from Maxim Ostapenko <m.ostapenko at samsung dot com> --- Eh, mine. typedef void (^os_trace_payload_t)(xpc_object_t xdict) looks very strange, it seems that it's an Objective-C declaration, right? Could you check: 1) Libc version on your system. 2) Contents of /usr/include/os/trace.h. Is that a valid C header?