--- eden/common/utils/UnixSocket.cpp.orig	2026-07-27 00:33:10.000000000 +0800
+++ eden/common/utils/UnixSocket.cpp	2026-07-30 03:33:03.000000000 +0800
@@ -47,6 +47,10 @@
 #define MSG_CMSG_CLOEXEC 0
 #endif
 
+#ifndef SOL_LOCAL
+#define SOL_LOCAL 0
+#endif
+
 namespace facebook::eden {
 
 namespace {