numo-openblas.gemspec in numo-openblas-0.1.1 vs numo-openblas.gemspec in numo-openblas-0.2.0

@@ -28,8 +28,9 @@
     `git ls-files -z`.split("\x0").reject { |f| f.match(%r{^(test|spec|features)/}) }
   end
   spec.bindir        = 'exe'
   spec.executables   = spec.files.grep(%r{^exe/}) { |f| File.basename(f) }
   spec.require_paths = ['lib']
+  spec.extensions    = ['ext/numo/openblas/extconf.rb']
 
   spec.add_runtime_dependency 'numo-linalg', '>= 0.1.4'
 end