diff --git a/libc/stdlib/atexit.c b/libc/stdlib/atexit.c
index 4ba2177..f4bcab9 100644
--- a/libc/stdlib/atexit.c
+++ b/libc/stdlib/atexit.c
@@ -104,6 +104,7 @@
 	return (ret);
 }
 
+#ifdef CRT_LEGACY_WORKAROUND
 /*
  * Register a function to be performed at exit.
  */
@@ -112,6 +113,7 @@
 {
 	return (__cxa_atexit((void (*)(void *))func, NULL, NULL));
 }
+#endif
 
 /*
  * Call all handlers registered with __cxa_atexit() for the shared