building htrace-c on mac os x

[Byung-Gon Chun]

Hi,

I'd like to build htrace-c on mac os x el capitan.
I'm getting the following errors. How do I fix this?

Thanks!
-Gon

incubator-htrace/htrace-c/src/core/htracer.h:22:

     [exec] In file included from /usr/include/pthread.h:78:

     [exec] /usr/include/sys/_types/_sigset_t.h:30:9: error: unknown type
name '__darwin_sigset_t'; did you mean '__darwin_size_t'?

     [exec] typedef __darwin_sigset_t               sigset_t;

     [exec]         ^

     [exec] /usr/include/i386/_types.h:92:24: note: '__darwin_size_t'
declared here

     [exec] typedef __SIZE_TYPE__           __darwin_size_t;        /*
sizeof() */

     [exec]                                 ^

     [exec] 2 errors generated.

     [exec] make[2]: *** [CMakeFiles/htrace_test.dir/receiver/noop.c.o]
Error 1

     [exec] make[1]: *** [CMakeFiles/htrace_test.dir/all] Error 2

     [exec] make: *** [all] Error 2