  CORE_SRCS="src/core/nginx.c \
             src/core/ngx_log.c \
             src/core/ngx_palloc.c \
-@@ -291,7 +296,8 @@ HTTP_DEPS="src/http/ngx_http.h \
+@@ -89,7 +94,8 @@ EVENT_DEPS="src/event/ngx_event.h \
+             src/event/ngx_event_posted.h \
+             src/event/ngx_event_busy_lock.h \
+             src/event/ngx_event_connect.h \
+-            src/event/ngx_event_pipe.h"
++            src/event/ngx_event_pipe.h \
++            src/event/ngx_event_probe.h"
+ 
+ EVENT_SRCS="src/event/ngx_event.c \
+             src/event/ngx_event_timer.c \
+@@ -291,7 +297,8 @@ HTTP_DEPS="src/http/ngx_http.h \
             src/http/ngx_http_script.h \
             src/http/ngx_http_upstream.h \
             src/http/ngx_http_upstream_round_robin.h \

 
 HTTP_SRCS="src/http/ngx_http.c \
            src/http/ngx_http_core_module.c \
@@ -524,3 +530,8 @@ NGX_GOOGLE_PERFTOOLS_MODULE=ngx_google_perftools_module
 NGX_GOOGLE_PERFTOOLS_SRCS=src/misc/ngx_google_perftools_module.c
 
 NGX_CPP_TEST_SRCS=src/misc/ngx_cpp_test_module.cpp

+
+DTRACE_FROM_SYSTEMTAP=YES
diff --git a/auto/sources b/auto/sources
index 374ad66..b9e71ff 100644
--- a/auto/sources
+++ b/auto/sources
@@ -39,6 +39,11 @@ CORE_DEPS="src/core/nginx.h \
