component_manager.cpp error when cross-compiled

Bug report

Required Info:

• Operating System:
  • Android 21
• Installation type:
  • Source
• Version or commit hash:
  • master
• DDS implementation:
  • Fast-RTPS
• Client library (if applicable):
  • rclcpp

Steps to reproduce issue

When compiling for Android 21 with NDK R18b
error: ../ament_ws/install_isolated/ament_index_cpp/lib/libament_index_cpp.so: incompatible target
../ros2_android_ws/src/ros2/rclcpp/rclcpp_components/src/component_manager.cpp:63: error: undefined reference to 'ament_index_cpp::get_resource(std::__ndk1::basic_string<char, std::__ndk1::char_traits<char>, std::__ndk1::allocator<char> > const&, std::__ndk1::basic_string<char, std::__ndk1::char_traits<char>, std::__ndk1::allocator<char> > const&, std::__ndk1::basic_string<char, std::__ndk1::char_traits<char>, std::__ndk1::allocator<char> >&, std::__ndk1::basic_string<char, std::__ndk1::char_traits<char>, std::__ndk1::allocator<char> >*)

When calling function is:
std::string content;
std::string base_path;
if (!ament_index_cpp::get_resource(
    "rclcpp_components", package_name, content, &base_path))
{
  throw ComponentManagerException("Could not find requested resource in ament index");
}

Expected behavior

Compiles without adding extra parameters
Someone helpfully pointed out the commas were making me miscount the number of arguments. However, the existence of the error does still confuse me and I would like to get some input on how to resolve it if at all possible

Actual behavior

Compiled code seems to add extra parameters to the function being called?
Compiled code doesn't link with the rmw library due to error above