--- v8/BUILD.gn.orig	2016-10-06 04:05:41.000000000 +0300
+++ v8/BUILD.gn	2016-10-14 04:33:56.674783000 +0300
@@ -2096,6 +2096,12 @@
       "dl",
       "rt",
     ]
+  } else if (is_bsd) {
+    sources += [
+      "src/base/debug/stack_trace_posix.cc",
+      "src/base/platform/platform-freebsd.cc",
+    ]
+    libs = [ "rt", "execinfo" ]
   } else if (is_android) {
     if (current_toolchain == host_toolchain) {
       libs = [
@@ -2227,6 +2233,7 @@
     sources = [
       "src/snapshot/mksnapshot.cc",
     ]
+    libs = ["execinfo"]
 
     configs = [ ":internal_config" ]