Index: third_party/blink/renderer/platform/BUILD.gn
--- third_party/blink/renderer/platform/BUILD.gn.orig
+++ third_party/blink/renderer/platform/BUILD.gn
@@ -2075,7 +2075,7 @@ static_library("test_support") {
   ]
 
   # fuzzed_data_provider may not work with a custom toolchain.
-  if (custom_toolchain == "" && is_clang) {
+  if ((custom_toolchain == "" && is_clang) && !is_bsd) {
     sources += [
       "testing/fuzzed_data_provider.cc",
       "testing/fuzzed_data_provider.h",
