Index: robot_localization-2.6.8/CMakeLists.txt
===================================================================
--- robot_localization-2.6.8.orig/CMakeLists.txt
+++ robot_localization-2.6.8/CMakeLists.txt
@@ -44,7 +44,7 @@ endif()
 set(CMAKE_CXX_STANDARD 14)
 
 if(NOT MSVC)
-  set_directory_properties(PROPERTIES COMPILE_OPTIONS "-Wall;-Werror")
+  set_directory_properties(PROPERTIES COMPILE_OPTIONS "-Wall")
 endif()
 add_definitions(-DEIGEN_NO_DEBUG -DEIGEN_MPL2_ONLY)