--- BUILD.gn.orig	2020-09-18 23:49:09 UTC
+++ BUILD.gn
@@ -4069,7 +4069,7 @@ v8_component("v8_libbase") {
     }
   }
 
-  if (is_linux || is_chromeos) {
+  if ((is_linux || is_chromeos) && !is_bsd) {
     sources += [
       "src/base/debug/stack_trace_posix.cc",
       "src/base/platform/platform-linux.cc",
@@ -4089,6 +4089,12 @@ v8_component("v8_libbase") {
       "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 = [
@@ -4431,6 +4437,7 @@ if (v8_monolithic) {
       ":v8_libsampler",
       "//build/win:default_exe_manifest",
     ]
+    libs = ["execinfo"]
 
     configs = [ ":internal_config" ]
   }