--- build/config/clang/BUILD.gn.orig	2026-09-30 02:11:56 UTC
+++ build/config/clang/BUILD.gn
@@ -281,6 +281,10 @@ clang_lib("compiler_builtins") {
     } else {
       assert(false, "unsupported target_platform=$target_platform")
     }
+  } else if (is_bsd) {
+    # FreeBSD provides compiler builtins via the base system (libcompiler_rt
+    # or equivalent). The system clang and ports clang both handle this
+    # automatically; no explicit library path is needed here.
   } else if (current_cpu != "ppc64" && current_cpu != "s390x") {
     libname = "builtins"
   }