support scala-native

[xuwei-k]

fix #73

[codecov-io]

Codecov Report

Merging #87 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master      #87   +/-   ##
=======================================
  Coverage   98.26%   98.26%           
=======================================
  Files           6        6           
  Lines         289      289           
  Branches       34       34           
=======================================
  Hits          284      284           
  Misses          5        5

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[johnynek]

This is great! Thank you very much! Would you be willing to update the README if there are any instructions on what people need to do to prepare their local system to build native or to run the native tests (or add new tests?). It looks like all new tests will need to do some build changes.

Thanks again!