diff --git a/libc/private/bionic_auxv.h b/libc/private/bionic_auxv.h
index 53fcc49..494fe9c 100644
--- a/libc/private/bionic_auxv.h
+++ b/libc/private/bionic_auxv.h
@@ -34,7 +34,7 @@
 
 __BEGIN_DECLS
 
-extern ElfW(auxv_t)* __libc_auxv;
+__LIBC_HIDDEN__ extern ElfW(auxv_t)* __libc_auxv;
 
 __END_DECLS
 
diff --git a/libc/private/bionic_tls.h b/libc/private/bionic_tls.h
index de086f2..f65de34 100644
--- a/libc/private/bionic_tls.h
+++ b/libc/private/bionic_tls.h
@@ -132,7 +132,8 @@
 
 #if defined(__cplusplus)
 class KernelArgumentBlock;
-extern void __libc_init_main_thread(KernelArgumentBlock&);
+extern void __libc_init_main_thread_early(KernelArgumentBlock& args);
+extern void __libc_init_main_thread_late(KernelArgumentBlock& args);
 #endif
 
 #endif /* __BIONIC_PRIVATE_BIONIC_TLS_H_ */