reachable.c: use error_errno()

diff --git a/run-command.h b/run-command.h
index 6e17894f010fb59fb5d89ac5f4be5273fbd89162..3d1e59e26e33d062a10698fc139f7fc0f4ae14ec 100644 (file)
--- a/run-command.h
+++ b/run-command.h
@@ -121,6 +121,7 @@ struct async {
 int start_async(struct async *async);
 int finish_async(struct async *async);
 int in_async(void);
+void NORETURN async_exit(int code);
 
 /**
  * This callback should initialize the child process and preload the