+# detect this runtime, "make install" is affected by operating_system.rb what is installed in system!
+gem_dir=$(./miniruby -Ilib -I. -I.ext/common ./tool/runruby.rb -- --disable-gems -r$(basename *-linux*-fake.rb .rb) -r rubygems -e 'puts Gem.default_dir')
+
+# Move gems root into common directory, out of Ruby directory structure.
+install -d $RPM_BUILD_ROOT%{gem_dir}
+%{__mv} $RPM_BUILD_ROOT${gem_dir}/{gems,specifications} $RPM_BUILD_ROOT%{gem_dir}
+
+# Move bundled rubygems to %gem_dir
+# make symlinks for io-console and bigdecimal, which are considered to be part of stdlib by other Gems
+# make symlinks for all packages, so they would work without rubygems
+# NOTE: when making symlinks, do not symlink paths that could be directories,
+# as there may came files from other packages as well. actually, unlikely as
+# the links to got system dir and only ruby may package there (other distro
+# packages should go to vendor dirs)
+%if 0
+install -d $RPM_BUILD_ROOT%{gem_dir}/gems/rake-%{rake_ver}/lib
+%{__mv} $RPM_BUILD_ROOT%{ruby_libdir}/rake* $RPM_BUILD_ROOT%{gem_dir}/gems/rake-%{rake_ver}/lib
+ln -s %{gem_dir}/gems/rake-%{rake_ver}/lib/rake $RPM_BUILD_ROOT%{ruby_libdir}
+ln -s %{gem_dir}/gems/rake-%{rake_ver}/lib/rake.rb $RPM_BUILD_ROOT%{ruby_libdir}
+%{__mv} $RPM_BUILD_ROOT%{gem_dir}/specifications/default/rake-%{rake_ver}.gemspec $RPM_BUILD_ROOT%{gem_dir}/specifications
+%endif
+
+install -d $RPM_BUILD_ROOT%{gem_dir}/gems/rdoc-%{rdoc_ver}/lib
+%{__mv} $RPM_BUILD_ROOT%{ruby_libdir}/rdoc* $RPM_BUILD_ROOT%{gem_dir}/gems/rdoc-%{rdoc_ver}/lib
+ln -s %{gem_dir}/gems/rdoc-%{rdoc_ver}/lib/rdoc $RPM_BUILD_ROOT%{ruby_libdir}
+ln -s %{gem_dir}/gems/rdoc-%{rdoc_ver}/lib/rdoc.rb $RPM_BUILD_ROOT%{ruby_libdir}
+%{__mv} $RPM_BUILD_ROOT%{gem_dir}/specifications/default/rdoc-%{rdoc_ver}.gemspec $RPM_BUILD_ROOT%{gem_dir}/specifications
+
+install -d $RPM_BUILD_ROOT%{gem_dir}/gems/bigdecimal-%{bigdecimal_ver}/lib
+install -d $RPM_BUILD_ROOT%{gem_libdir}/bigdecimal-%{bigdecimal_ver}/lib/bigdecimal
+%{__mv} $RPM_BUILD_ROOT%{ruby_libdir}/bigdecimal $RPM_BUILD_ROOT%{gem_dir}/gems/bigdecimal-%{bigdecimal_ver}/lib
+%{__mv} $RPM_BUILD_ROOT%{ruby_libarchdir}/bigdecimal.so $RPM_BUILD_ROOT%{gem_libdir}/bigdecimal-%{bigdecimal_ver}/lib
+%{__mv} $RPM_BUILD_ROOT%{ruby_libarchdir}/bigdecimal/util.so $RPM_BUILD_ROOT%{gem_libdir}/bigdecimal-%{bigdecimal_ver}/lib/bigdecimal/
+%{__mv} $RPM_BUILD_ROOT%{gem_dir}/specifications/default/bigdecimal-%{bigdecimal_ver}.gemspec $RPM_BUILD_ROOT%{gem_dir}/specifications
+ln -s %{gem_dir}/gems/bigdecimal-%{bigdecimal_ver}/lib/bigdecimal $RPM_BUILD_ROOT%{ruby_libdir}/bigdecimal
+ln -s %{gem_libdir}/bigdecimal-%{bigdecimal_ver}/lib/bigdecimal.so $RPM_BUILD_ROOT%{ruby_libarchdir}/bigdecimal.so
+install -d $RPM_BUILD_ROOT%{ruby_libarchdir}/bigdecimal
+ln -s %{gem_libdir}/bigdecimal-%{bigdecimal_ver}/lib/bigdecimal/util.so $RPM_BUILD_ROOT%{ruby_libarchdir}/bigdecimal/util.so
+
+install -d $RPM_BUILD_ROOT%{gem_dir}/gems/io-console-%{io_console_ver}/lib
+install -d $RPM_BUILD_ROOT%{gem_libdir}/io-console-%{io_console_ver}/lib/io
+%{__mv} $RPM_BUILD_ROOT%{ruby_libdir}/io $RPM_BUILD_ROOT%{gem_dir}/gems/io-console-%{io_console_ver}/lib
+%{__mv} $RPM_BUILD_ROOT%{ruby_libarchdir}/io/console.so $RPM_BUILD_ROOT%{gem_libdir}/io-console-%{io_console_ver}/lib/io
+%{__mv} $RPM_BUILD_ROOT%{gem_dir}/specifications/default/io-console-%{io_console_ver}.gemspec $RPM_BUILD_ROOT%{gem_dir}/specifications
+ln -s %{gem_dir}/gems/io-console-%{io_console_ver}/lib/io $RPM_BUILD_ROOT%{ruby_libdir}/io
+ln -s %{gem_libdir}/io-console-%{io_console_ver}/lib/io/console.so $RPM_BUILD_ROOT%{ruby_libarchdir}/io/console.so
+
+install -d $RPM_BUILD_ROOT%{gem_dir}/gems/json-%{json_ver}/lib
+install -d $RPM_BUILD_ROOT%{gem_libdir}/json-%{json_ver}/lib
+%{__mv} $RPM_BUILD_ROOT%{ruby_libdir}/json* $RPM_BUILD_ROOT%{gem_dir}/gems/json-%{json_ver}/lib
+%{__mv} $RPM_BUILD_ROOT%{ruby_libarchdir}/json $RPM_BUILD_ROOT%{gem_libdir}/json-%{json_ver}/lib
+%{__mv} $RPM_BUILD_ROOT%{gem_dir}/specifications/default/json-%{json_ver}.gemspec $RPM_BUILD_ROOT%{gem_dir}/specifications
+ln -s %{gem_dir}/gems/json-%{json_ver}/lib/json $RPM_BUILD_ROOT%{ruby_libdir}/json
+ln -s %{gem_dir}/gems/json-%{json_ver}/lib/json.rb $RPM_BUILD_ROOT%{ruby_libdir}/json.rb
+install -d $RPM_BUILD_ROOT%{ruby_libarchdir}/json/ext
+ln -s %{gem_libdir}/json-%{json_ver}/lib/json/ext/parser.so $RPM_BUILD_ROOT%{ruby_libarchdir}/json/ext
+ln -s %{gem_libdir}/json-%{json_ver}/lib/json/ext/generator.so $RPM_BUILD_ROOT%{ruby_libarchdir}/json/ext
+
+ln -s %{gem_dir}/gems/minitest-%{minitest_ver}/lib/minitest $RPM_BUILD_ROOT%{ruby_libdir}
+
+install -d $RPM_BUILD_ROOT%{ruby_libdir}/test
+ln -s %{gem_dir}/gems/test-unit-%{test_unit_ver}/lib/test/unit $RPM_BUILD_ROOT%{ruby_libdir}/test
+
+install -d $RPM_BUILD_ROOT%{gem_dir}/gems/psych-%{psych_ver}/lib
+install -d $RPM_BUILD_ROOT%{gem_libdir}/psych-%{psych_ver}/lib
+%{__mv} $RPM_BUILD_ROOT%{ruby_libdir}/psych* $RPM_BUILD_ROOT%{gem_dir}/gems/psych-%{psych_ver}/lib
+%{__mv} $RPM_BUILD_ROOT%{ruby_libarchdir}/psych.so $RPM_BUILD_ROOT%{gem_libdir}/psych-%{psych_ver}/lib/
+%{__mv} $RPM_BUILD_ROOT%{gem_dir}/specifications/default/psych-%{psych_ver}.gemspec $RPM_BUILD_ROOT%{gem_dir}/specifications
+ln -s %{gem_dir}/gems/psych-%{psych_ver}/lib/psych $RPM_BUILD_ROOT%{ruby_libdir}/psych
+ln -s %{gem_dir}/gems/psych-%{psych_ver}/lib/psych.rb $RPM_BUILD_ROOT%{ruby_libdir}/psych.rb
+ln -s %{gem_libdir}/psych-%{psych_ver}/lib/psych.so $RPM_BUILD_ROOT%{ruby_archdir}/psych.so
+
+install -d $RPM_BUILD_ROOT%{gem_dir}/gems/bundler-%{bundler_ver}/lib
+install -d $RPM_BUILD_ROOT%{gem_libdir}/bundler-%{bundler_ver}/lib
+%{__mv} $RPM_BUILD_ROOT%{ruby_libdir}/bundler* $RPM_BUILD_ROOT%{gem_dir}/gems/bundler-%{bundler_ver}/lib
+%{__mv} $RPM_BUILD_ROOT%{gem_dir}/specifications/default/bundler-%{bundler_ver}.gemspec $RPM_BUILD_ROOT%{gem_dir}/specifications
+ln -s %{gem_dir}/gems/bundler-%{bundler_ver}/lib/bundler $RPM_BUILD_ROOT%{ruby_libdir}/bundler
+ln -s %{gem_dir}/gems/bundler-%{bundler_ver}/lib/bundler.rb $RPM_BUILD_ROOT%{ruby_libdir}/bundler.rb
+
+# replace default irb with its not gemified version
+%{__mv} $RPM_BUILD_ROOT%{gem_dir}/gems/irb-%{irb_ver}/exe/irb $RPM_BUILD_ROOT%{_bindir}/irb%{ruby_suffix}
+
+# Adjust the gemspec files so that the gems will load properly
+sed -i '/^end$/ i\
+ s.require_paths = ["lib"]' $RPM_BUILD_ROOT%{gem_dir}/specifications/rake-%{rake_ver}.gemspec
+
+sed -i '/^end$/ i\
+ s.require_paths = ["lib"]' $RPM_BUILD_ROOT%{gem_dir}/specifications/rdoc-%{rdoc_ver}.gemspec
+
+sed -i '/^end$/ i\
+ s.require_paths = ["lib"]\
+ s.extensions = ["bigdecimal.so"]' $RPM_BUILD_ROOT%{gem_dir}/specifications/bigdecimal-%{bigdecimal_ver}.gemspec
+
+sed -i '/^end$/ i\
+ s.require_paths = ["lib"]\
+ s.extensions = ["io/console.so"]' $RPM_BUILD_ROOT%{gem_dir}/specifications/io-console-%{io_console_ver}.gemspec
+
+sed -i '/^end$/ i\
+ s.require_paths = ["lib"]\
+ s.extensions = ["json/ext/parser.so", "json/ext/generator.so"]' $RPM_BUILD_ROOT%{gem_dir}/specifications/json-%{json_ver}.gemspec
+
+sed -i '/^end$/ i\
+ s.require_paths = ["lib"]' $RPM_BUILD_ROOT%{gem_dir}/specifications/minitest-%{minitest_ver}.gemspec
+
+# Push the .gemspecs through the RubyGems to let them write the stub headers.
+# This speeds up loading of libraries and avoids warnings in Spring:
+# https://github.com/rubygems/rubygems/pull/694
+for s in rake-%{rake_ver}.gemspec rdoc-%{rdoc_ver}.gemspec json-%{json_ver}.gemspec; do
+ s="$RPM_BUILD_ROOT%{gem_dir}/specifications/$s"
+ %{__make} runruby TESTRUN_SCRIPT="-rrubygems \
+ -e \"spec = Gem::Specification.load('$s')\" \
+ -e \"File.write '$s', spec.to_ruby\""
+done
+
+%{__sed} -i -e '1s,/usr/bin/env ruby,/usr/bin/ruby,' \
+ $RPM_BUILD_ROOT%{_bindir}/irb \
+ $RPM_BUILD_ROOT%{ruby_libdir}/abbrev.rb \
+ $RPM_BUILD_ROOT%{gem_dir}/gems/rake-%{rake_ver}/bin/console \
+ $RPM_BUILD_ROOT%{gem_dir}/gems/rake-%{rake_ver}/exe/rake \
+ $RPM_BUILD_ROOT%{gem_dir}/gems/rdoc-%{rdoc_ver}/exe/{rdoc,ri} \
+ $RPM_BUILD_ROOT%{gem_dir}/gems/bundler-%{bundler_ver}/exe/{bundle,bundler} \
+ $RPM_BUILD_ROOT%{_examplesdir}/%{oname}-%{pkg_version}/{cal,test,time,uumerge}.rb \
+ $RPM_BUILD_ROOT%{_examplesdir}/%{oname}-%{pkg_version}/{drb,logger,openssl,ripper,rss}/*.rb \
+ $RPM_BUILD_ROOT%{_examplesdir}/%{oname}-%{pkg_version}/webrick/*.cgi
+
+# gem non library files
+%{__rm} -r $RPM_BUILD_ROOT%{gem_dir}/gems/minitest-%{minitest_ver}/test
+%{__rm} -r $RPM_BUILD_ROOT%{gem_dir}/gems/test-unit-%{test_unit_ver}/{[A-Z]*,doc,sample,test}
+%{__rm} -r $RPM_BUILD_ROOT%{gem_dir}/gems/power_assert-%{power_assert_ver}/{[A-Z]*,.*}
+%{__rm} -r $RPM_BUILD_ROOT%{gem_dir}/gems/did_you_mean-%{did_you_mean_ver}/{[A-Z]*,doc,test,.*,tmp,benchmark}
+%{__rm} -r $RPM_BUILD_ROOT%{gem_dir}/gems/rake-%{rake_ver}/{[A-Z]*,doc,.*}
+%{__rm} -r $RPM_BUILD_ROOT%{gem_dir}/gems/net-telnet-%{net_telnet_ver}/{[A-Z]*,bin,.*}