[Bug sanitizer/78267] [7 Regression] libsanitizer breaks bootstrap on x86_64-apple-darwin16 at r241977

[m.ostapenko at samsung dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78267

Maxim Ostapenko <m.ostapenko at samsung dot com> changed:

           What    |Removed                     |Added
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                 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?