remove architecture specific definitions exported by PCL (#893)

* remove architecture specific definitions exported by PCL

This is an issue on PCL 1.8.X causing SIGILL, Illegal instruction crashes: ros-gbp/cartographer_ros-release#10
Should be fixed in future PCL version with PointCloudLibrary/pcl#2100

cartographer_ros/CMakeLists.txt

@@ -104,7 +104,12 @@ target_include_directories(${PROJECT_NAME} SYSTEM PUBLIC ${LUA_INCLUDE_DIR})
 # PCL
 target_include_directories(${PROJECT_NAME} SYSTEM PUBLIC ${PCL_INCLUDE_DIRS})
 target_link_libraries(${PROJECT_NAME} PUBLIC ${PCL_LIBRARIES})
+set(BLACKLISTED_PCL_DEFINITIONS " -march=native -msse4.2 -mfpmath=sse ")
 foreach(DEFINITION ${PCL_DEFINITIONS})
+  list (FIND BLACKLISTED_PCL_DEFINITIONS "${DEFINITION}" DEFINITIONS_INDEX)
+  if (${DEFINITIONS_INDEX} GREATER -1)
+    continue()
+  endif()
   set(TARGET_COMPILE_FLAGS "${TARGET_COMPILE_FLAGS} ${DEFINITION}")
 endforeach()