require 'rbconfig'
require 'mkmf'
dest_path = mkintpath("/build/ruby-io-wait/src/io-wait-0.2.3/lib/3.0.4/aarch64-linux/io")
RbConfig::MAKEFILE_CONFIG['sitearchdir'] = dest_path
RbConfig::CONFIG['sitearchdir'] = dest_path
RbConfig::MAKEFILE_CONFIG['sitelibdir'] = dest_path
RbConfig::CONFIG['sitelibdir'] = dest_path
