1 files changed, 3 insertions, 0 deletions
diff --git a/thread.h b/thread.h
index a1e8fdc65b..c76534fe3e 100644
--- a/thread.h
+++ b/thread.h
@@ -302,6 +302,9 @@
     } STMT_END
 #endif
 
+void Perl_atfork_lock(void);
+void Perl_atfork_unlock(void);
+
 #ifndef PTHREAD_ATFORK
 #  define PTHREAD_ATFORK(prepare,parent,child)			\
     pthread_atfork(prepare,parent,child)