--- RMagick-2.15.4/Rakefile~	2016-03-13 10:19:00.000000000 +0100
+++ RMagick-2.15.4/Rakefile	2016-03-13 10:20:10.123489864 +0100
@@ -21,14 +21,6 @@
   end
 end
 
-desc 'abort when repo is not clean or has uncommited code'
-task :assert_clean_repo do
-  sh('git diff --exit-code')
-  abort 'Git repo not clean' unless $CHILD_STATUS.success?
-  sh('git diff-index --quiet --cached HEAD')
-  abort 'Git repo not commited' unless $CHILD_STATUS.success?
-end
-
 desc 'build gem'
 task :build => [:config] do
   sh 'gem build -V rmagick.gemspec'
@@ -41,24 +33,6 @@
   end
 end
 
-task :push_and_tag => [:build] do
-  sh "gem push #{File.join(base, 'pkg', gem_name)}"
-  if $CHILD_STATUS.success?
-    sh "git tag -a -m \"Version #{version}\" #{version_tag}"
-    STDOUT.puts "Tagged #{version_tag}."
-    sh 'git push'
-    sh 'git push --tags'
-  else
-    abort 'tagging aborted pushing gem failed'
-  end
-end
-
-desc 'Release'
-task :release => [:assert_clean_repo, :push_and_tag]
-
-desc 'Release and build the legacy way'
-task :legacy_release=> ['legacy:README.html', 'legacy:extconf', 'legacy:doc', 'legacy:manifest', 'release']
-
 namespace :legacy do
   require 'find'
 
--- RMagick-2.15.4/rmagick.gemspec~	2016-03-13 10:39:36.000000000 +0100
+++ RMagick-2.15.4/rmagick.gemspec	2016-03-13 10:42:46.932844991 +0100
@@ -13,7 +13,7 @@
   s.homepage = 'https://github.com/rmagick/rmagick'
   s.license = 'MIT'
 
-  tracked_files = `git ls-files`.split($OUTPUT_RECORD_SEPARATOR)
+  tracked_files = `find ./ -printf "%P\n"`.split($OUTPUT_RECORD_SEPARATOR)
   file_exclusion_regex = %r{(\Alib/rvg/to_c.rb)}
   files         = tracked_files.reject{|file| file[file_exclusion_regex] }
   test_files    = files.grep(%r{^(test|spec|features)/})