--- libsanitizer/tsan/tsan_interceptors.cc.orig	2013-02-13 05:46:01.000000000 -0500
+++ libsanitizer/tsan/tsan_interceptors.cc	2017-09-13 02:02:06.696946391 -0400
@@ -19,26 +19,27 @@
 #include "tsan_interface.h"
 #include "tsan_platform.h"
 #include "tsan_rtl.h"
 #include "tsan_mman.h"
 #include "tsan_fd.h"
+#include <sys/ucontext.h>
 
 using namespace __tsan;  // NOLINT
 
 const int kSigCount = 128;
 
 struct my_siginfo_t {
   int opaque[128];
 };
 
-struct sigset_t {
-  u64 val[1024 / 8 / sizeof(u64)];
-};
-
-struct ucontext_t {
-  uptr opaque[117];
-};
+//struct sigset_t {
+//  u64 val[1024 / 8 / sizeof(u64)];
+//};
+
+//struct ucontext_t {
+//  uptr opaque[117];
+//};
 
 extern "C" int pthread_attr_init(void *attr);
 extern "C" int pthread_attr_destroy(void *attr);
 extern "C" int pthread_attr_getdetachstate(void *attr, int *v);
 extern "C" int pthread_attr_setstacksize(void *attr, uptr stacksize);