From 274e441292f332e025a7c5d993e2d0923ef5aef1 Mon Sep 17 00:00:00 2001
From: Andrew Tridgell <andrew@tridgell.net>
Date: Sat, 4 Nov 2017 16:53:29 +1100
Subject: [PATCH] DataFlash: fixed build for aerofc-v1

---
 libraries/DataFlash/DataFlash.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libraries/DataFlash/DataFlash.cpp b/libraries/DataFlash/DataFlash.cpp
index 82dabfc9e9..6096a324b9 100644
--- a/libraries/DataFlash/DataFlash.cpp
+++ b/libraries/DataFlash/DataFlash.cpp
@@ -74,7 +74,7 @@ void DataFlash_Class::Init(const struct LogStructure *structures, uint8_t num_ty
     _num_types = num_types;
     _structures = structures;
 
-#if HAL_OS_POSIX_IO
+#if HAL_OS_POSIX_IO && defined(HAL_BOARD_LOG_DIRECTORY)
     if (_params.backend_types == DATAFLASH_BACKEND_FILE ||
         _params.backend_types == DATAFLASH_BACKEND_BOTH) {
         DFMessageWriter_DFLogStart *message_writer =