Comment 2 for bug 1790856

some comments:

 - the package descriptions mention the ABIs as experimental. How do you want
   to handle that in main, it's not ideal.
- I don't like the idea of only building that for amd64. Please could you build
  that everywhere, and see where it fails? This doesn't hide the fact that the
  package is not ported to some archs, and also builds on architectures where
  it is not yet fully supported. You could limit then the build dependencies in qemu
  to the architectures you want to support.
- please have a look at the bundled libraries in src
  at least jemalloc is packaged in Ubuntu, I didn't check
  for the other libraries.