From 43b4cf39bdc211c54695366d0e10d4d82686c0e0 Mon Sep 17 00:00:00 2001
From: Daniel Agar <daniel@agar.ca>
Date: Wed, 16 Dec 2020 19:45:08 -0500
Subject: [PATCH] sitl_gazebo build single threaded

 - building sitl_gazebo in parallel within a parallel PX4 build isn't load balanced
---
 platforms/posix/cmake/sitl_target.cmake | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/platforms/posix/cmake/sitl_target.cmake b/platforms/posix/cmake/sitl_target.cmake
index 0c1a7bf89d..70df4c69cf 100644
--- a/platforms/posix/cmake/sitl_target.cmake
+++ b/platforms/posix/cmake/sitl_target.cmake
@@ -45,7 +45,7 @@ ExternalProject_Add(sitl_gazebo
 	USES_TERMINAL_BUILD true
 	EXCLUDE_FROM_ALL true
 	BUILD_ALWAYS 1
-	BUILD_COMMAND ${CMAKE_COMMAND} --build <BINARY_DIR>
+	BUILD_COMMAND ${CMAKE_COMMAND} --build <BINARY_DIR> -- -j1
 )
 
 ExternalProject_Add(mavsdk_tests