--- buildtools/third_party/libc++abi/BUILD.gn.orig	2026-08-13 07:41:05 UTC
+++ buildtools/third_party/libc++abi/BUILD.gn
@@ -62,7 +62,7 @@ target(libcxxabi_target_type, "libc++abi") {
   # TODO(crbug.com/469458284): Remove this once libc++abi is rolled again.
   defines += [ "_LIBCPP_CONSTINIT=constinit" ]
 
-  if (is_linux || is_android) {
+  if ((is_linux || is_android) && !is_freebsd) {
     defines += [ "_LIBCXXABI_USE_FUTEX" ]
   }