Merge V8 at 3.9.24.13

Bug: 5688872
Change-Id: Id0aa8d23375030494d3189c31774059c0f5398fc
diff --git a/src/d8-posix.cc b/src/d8-posix.cc
index 289c3b0..8a278e4 100644
--- a/src/d8-posix.cc
+++ b/src/d8-posix.cc
@@ -366,7 +366,8 @@
 // We're disabling usage of waitid in Mac OS X because it doens't work for us:
 // a parent process hangs on waiting while a child process is already a zombie.
 // See http://code.google.com/p/v8/issues/detail?id=401.
-#if defined(WNOWAIT) && !defined(ANDROID) && !defined(__APPLE__)
+#if defined(WNOWAIT) && !defined(ANDROID) && !defined(__APPLE__) \
+    && !defined(__NetBSD__)
 #if !defined(__FreeBSD__)
 #define HAS_WAITID 1
 #endif