diff --git a/libc/bionic/libc_init_common.cpp b/libc/bionic/libc_init_common.cpp
index 1ff6603..5c54341 100644
--- a/libc/bionic/libc_init_common.cpp
+++ b/libc/bionic/libc_init_common.cpp
@@ -56,6 +56,7 @@
 extern "C" int __system_properties_init(void);
 
 __LIBC_HIDDEN__ WriteProtected<libc_globals> __libc_globals;
+__LIBC_HIDDEN__ libc_shared_globals* __libc_shared_globals;
 
 // Not public, but well-known in the BSDs.
 const char* __progname;
@@ -75,6 +76,9 @@
   });
 }
 
+void __libc_init_shared_globals(libc_shared_globals*) {
+}
+
 #if !defined(__LP64__)
 static void __check_max_thread_id() {
   if (gettid() > 65535) {
@@ -113,6 +117,7 @@
   pthread_atfork(arc4random_fork_handler, _thread_arc4_unlock, _thread_arc4_unlock);
 
   __system_properties_init(); // Requires 'environ'.
+  __libc_init_fdsan(); // Requires system properties (for debug.fdsan).
 }
 
 __noreturn static void __early_abort(int line) {