From 7711a94a5ae047069cc27d814d778ef22a3ec53b Mon Sep 17 00:00:00 2001
From: James Goppert <james.goppert@gmail.com>
Date: Tue, 6 Oct 2015 11:28:10 -0400
Subject: [PATCH] Fixes cmake uavcan external project for cmake 2.8.12.

---
 src/modules/uavcan/CMakeLists.txt | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/modules/uavcan/CMakeLists.txt b/src/modules/uavcan/CMakeLists.txt
index 5cdcdbe8ca..f3d255d1e0 100644
--- a/src/modules/uavcan/CMakeLists.txt
+++ b/src/modules/uavcan/CMakeLists.txt
@@ -74,6 +74,7 @@ px4_join(OUT uavcan_cxx_flags LIST "${uavcan_cxx_flags}" GLUE " ")
 
 externalproject_add(libuavcan
 	DEPENDS ${uavcan_deps}
+	DOWNLOAD_COMMAND ""
 	UPDATE_COMMAND git submodule update --init
 	SOURCE_DIR ${CMAKE_SOURCE_DIR}/src/lib/uavcan
 	CMAKE_ARGS -DCMAKE_TOOLCHAIN_FILE=${CMAKE_TOOLCHAIN_FILE}