diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..14ff119
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+SOURCES/nio4r-1.2.1.gem
diff --git a/.rh-ror50-rubygem-nio4r.metadata b/.rh-ror50-rubygem-nio4r.metadata
new file mode 100644
index 0000000..f21b23d
--- /dev/null
+++ b/.rh-ror50-rubygem-nio4r.metadata
@@ -0,0 +1 @@
+1006ad688d3d22fa736aecaa6c9a4e1153f16ac7 SOURCES/nio4r-1.2.1.gem
diff --git a/README.md b/README.md
deleted file mode 100644
index 98f42b4..0000000
--- a/README.md
+++ /dev/null
@@ -1,4 +0,0 @@
-The master branch has no content
-
-Look at the c7 branch if you are working with CentOS-7, or the c4/c5/c6 branch for CentOS-4, 5 or 6
-If you find this file in a distro specific branch, it means that no content has been checked in yet
diff --git a/SPECS/rubygem-nio4r.spec b/SPECS/rubygem-nio4r.spec
new file mode 100644
index 0000000..14ff3b5
--- /dev/null
+++ b/SPECS/rubygem-nio4r.spec
@@ -0,0 +1,145 @@
+%{?scl:%scl_package rubygem-%{gem_name}}
+%{!?scl:%global pkg_name %{name}}
+
+# Generated from nio4r-1.2.1.gem by gem2rpm -*- rpm-spec -*-
+%global gem_name nio4r
+
+Name: %{?scl_prefix}rubygem-%{gem_name}
+Version: 1.2.1
+Release: 3%{?dist}
+Summary: New IO for Ruby
+Group: Development/Languages
+# The entire source code is MIT, bundled libev is BSD or GPLv2+
+License: MIT and (BSD or GPLv2+)
+URL: https://github.com/celluloid/nio4r
+Source0: https://rubygems.org/gems/%{gem_name}-%{version}.gem
+
+Requires: %{?scl_prefix_ruby}ruby(release)
+Requires: %{?scl_prefix_ruby}ruby(rubygems)
+BuildRequires: %{?scl_prefix_ruby}ruby(release)
+BuildRequires: %{?scl_prefix_ruby}ruby(rubygems)
+BuildRequires: %{?scl_prefix_ruby}ruby-devel
+BuildRequires: %{?scl_prefix_ruby}rubygems-devel
+BuildRequires: %{?scl_prefix}rubygem(rspec)
+Provides: %{?scl_prefix}rubygem(%{gem_name}) = %{version}
+
+# Explicitly require runtime subpackage, as long as older scl-utils do not generate it
+%{?scl:Requires: %{?scl_prefix}runtime}
+
+# As bundled libev ev.c is modified from original one,
+# we have to use the bundled libev instead of separating it and
+# using system libev.
+# See below commits.
+# Release the GIL when libev polls
+# https://github.com/celluloid/nio4r/commit/6801433
+# A more productive message re: GVL
+# https://github.com/celluloid/nio4r/commit/fba5c68
+Provides: %{?scl_prefix}bundled(libev) = 4.22
+
+%description
+NIO provides a high performance selector API for monitoring IO objects
+
+
+%package doc
+Summary: Documentation for %{pkg_name}
+Group: Documentation
+Requires: %{?scl_prefix}%{pkg_name} = %{version}-%{release}
+BuildArch: noarch
+
+%description doc
+Documentation for %{pkg_name}.
+
+%prep
+%{?scl:scl enable %{scl} - << \EOF}
+set -e
+gem unpack %{SOURCE0}
+
+%setup -q -D -T -n  %{gem_name}-%{version}
+
+gem spec %{SOURCE0} -l --ruby > %{gem_name}.gemspec
+%{?scl:EOF}
+
+%build
+%{?scl:scl enable %{scl} - << \EOF}
+set -e
+# Create the gem as gem install only works on a gem file
+gem build %{gem_name}.gemspec
+
+# Update %%optflags used in %%gem_install to avoid strict-aliasing warnings.
+# https://github.com/socketry/nio4r/pull/130
+%global optflags %{?optflags} -fno-strict-aliasing
+
+# %%gem_install compiles any C extensions and installs the gem into ./%%gem_dir
+# by default, so that we can move it into the buildroot in %%install
+%gem_install
+%{?scl:EOF}
+
+%install
+
+mkdir -p %{buildroot}%{gem_dir}
+cp -a .%{gem_dir}/* \
+        %{buildroot}%{gem_dir}/
+
+mkdir -p %{buildroot}%{gem_extdir_mri}
+cp -a .%{gem_extdir_mri}/{gem.build_complete,*.so} %{buildroot}%{gem_extdir_mri}/
+
+# Prevent dangling symlink in -debuginfo (rhbz#878863).
+rm -rf %{buildroot}%{gem_instdir}/ext/
+
+# Remove useless shebang.
+# https://github.com/celluloid/nio4r/pull/86
+sed -i 's|^#!/usr/bin/env rake$||' %{buildroot}%{gem_instdir}/Rakefile
+
+# Add executable bits to the file with shebang.
+# https://github.com/celluloid/nio4r/pull/85
+chmod 755 %{buildroot}%{gem_instdir}/examples/echo_server.rb
+
+
+# Run the test suite
+%check
+pushd .%{gem_instdir}
+# Ignore code coverage and bundler.
+sed -i '/require "coveralls"/ s/^/#/' spec/spec_helper.rb
+sed -i '/Coveralls.wear!/ s/^/#/' spec/spec_helper.rb
+sed -i '/require "bundler\/setup"/ s/^/#/' spec/spec_helper.rb
+# Load nio4r_ext.so.
+export RUBYOPT="-I$(dirs +1)%{gem_extdir_mri}"
+%{?scl:scl enable %{scl} - << \EOF}
+rspec spec
+%{?scl:EOF}
+popd
+
+%files
+# There is no %%license macro on RHEL6.
+# https://bugzilla.redhat.com/show_bug.cgi?id=1386246
+%{!?_licensedir:%global license %%doc}
+
+%dir %{gem_instdir}
+%{gem_extdir_mri}
+%exclude %{gem_instdir}/.*
+%license %{gem_instdir}/LICENSE.txt
+%{gem_libdir}
+%exclude %{gem_cache}
+%{gem_spec}
+
+%files doc
+%doc %{gem_docdir}
+%{gem_instdir}/Gemfile
+%doc %{gem_instdir}/README.md
+%doc %{gem_instdir}/CHANGES.md
+%{gem_instdir}/logo.png
+%{gem_instdir}/tasks
+%{gem_instdir}/Rakefile
+%{gem_instdir}/examples
+%{gem_instdir}/nio4r.gemspec
+%{gem_instdir}/spec
+
+%changelog
+* Wed Feb 22 2017 Jun Aruga <jaruga@redhat.com> - 1.2.1-3
+- Add flag to avoid warnings from strict-aliasing optimization.
+
+* Thu Jun 30 2016 Jun Aruga <jaruga@redhat.com> - 1.2.1-2
+- Swap the description and summary
+
+* Tue Jun 28 2016 Jun Aruga <jaruga@redhat.com> - 1.2.1-1
+- Initial package