From ad6e48c3727552dfbea28f814da928865704453f Mon Sep 17 00:00:00 2001
From: fredowski <friedrich.beckmann@gmx.de>
Date: Tue, 4 Sep 2018 02:27:32 +0200
Subject: [PATCH] cmake - check directory existence before copy_directory
 (#10402)

Starting with cmake version 3.12 the cmake -E copy_directory
command fails if the source directory does not exist. This results
in a build failure. This fix creates the source directory before
the copy which does not harm if the source directory exists.

Closes: #10368
---
 ROMFS/CMakeLists.txt | 1 +
 1 file changed, 1 insertion(+)

diff --git a/ROMFS/CMakeLists.txt b/ROMFS/CMakeLists.txt
index 94cd9cf989..e552ffc889 100644
--- a/ROMFS/CMakeLists.txt
+++ b/ROMFS/CMakeLists.txt
@@ -105,6 +105,7 @@ endif()
 
 add_custom_command(OUTPUT romfs_extras.stamp
 	COMMAND ${CMAKE_COMMAND} -E make_directory ${romfs_gen_root_dir}/extras/
+	COMMAND ${CMAKE_COMMAND} -E make_directory ${PX4_BINARY_DIR}/romfs_extras/
 	COMMAND ${CMAKE_COMMAND} -E copy_directory ${PX4_BINARY_DIR}/romfs_extras/ ${romfs_gen_root_dir}/extras/
 	COMMAND ${CMAKE_COMMAND} -E touch romfs_extras.stamp
 	DEPENDS