Problems linking in the AMReX_MarchingCubes code

[dmingram66]

I have been writing some code which calls MC::marching_cubes() to find the iso-surface phi=0 from inside the main loop of an application code. I'm trying to compile the code but getting the following linker error

Undefined symbols for architecture arm64:
  "amrex::MC::Initialize()", referenced from:
      extract_isosurface(amrex::MultiFab const&, amrex::Geometry const&, int, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>> const&, double, bool) in GeometricReinitialise.o
  "amrex::MC::marching_cubes(amrex::Geometry const&, amrex::FArrayBox&, amrex::MC::MCFab&)", referenced from:
      extract_isosurface(amrex::MultiFab const&, amrex::Geometry const&, int, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>> const&, double, bool) in GeometricReinitialise.o
  "amrex::MC::Finalize()", referenced from:
      extract_isosurface(amrex::MultiFab const&, amrex::Geometry const&, int, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>> const&, double, bool) in GeometricReinitialise.o
ld: symbol(s) not found for architecture arm64

I'm using GNUMake and my makefile sets USE_EB = TRUE

I've tried using MC::Initialize() rather than amrex::MC::Initialize() but get the same error.

if I don't set USE_EB the compiler cannot find #include <AMReX_MarchingCubes.H> as expected.

advice on how to include AMReX_MarchingCubes.cpp in the build would be appreciated.

[WeiqunZhang]

Does amrex/Tests/EB/MarchingCubes/ work for you? If so, use that as an example.

[WeiqunZhang]

Also, maybe all you need is make clean?