Changelog for ruby2.6-rubygem-discourse-ember-source-3.5.1.3-4.1.x86_64.rpm :

* Sat Jan 19 2019 Marcus Rueckert - rb_build_ruby_abi needs to be rb_build_ruby_abis
* Fri Jan 18 2019 Marcus Rueckert - use rb_build_ruby_abi instead of rb_default_ruby_abi
* Mon Jan 14 2019 Marcus Rueckert - initial package