diff --git a/.gitignore b/.gitignore
index e69de29..4d66eb7 100644
--- a/.gitignore
+++ b/.gitignore
@@ -0,0 +1 @@
+/native-package-installer-1.0.1.gem
diff --git a/rubygem-native-package-installer.spec b/rubygem-native-package-installer.spec
new file mode 100644
index 0000000..c849c11
--- /dev/null
+++ b/rubygem-native-package-installer.spec
@@ -0,0 +1,81 @@
+%global	gem_name	native-package-installer
+
+Name:		rubygem-%{gem_name}
+Version:	1.0.1
+Release:	1%{?dist}
+Summary:	Native packages installation helper
+
+License:	LGPLv3+
+URL:		https://github.com/ruby-gnome2/native-package-installer
+Source0:	https://rubygems.org/gems/%{gem_name}-%{version}.gem
+
+BuildRequires:	ruby(release)
+BuildRequires:	rubygems-devel
+BuildRequires:	rubygem(test-unit)
+BuildRequires:	rubygem(test-unit-rr)
+
+BuildArch:		noarch
+
+%description
+Users need to install native packages to install an extension library
+that depends on native packages. It bores users because users need to
+install native packages and an extension library separately.
+native-package-installer helps to install native packages on "gem install".
+Users can install both native packages and an extension library by one action,
+"gem install".
+
+%package	doc
+Summary:	Documentation for %{name}
+Requires:	%{name} = %{version}-%{release}
+BuildArch:		noarch
+
+%description	doc
+Documentation for %{name}.
+
+%prep
+gem unpack %{SOURCE0}
+%setup -q -D -T -n  %{gem_name}-%{version}
+gem spec %{SOURCE0} -l --ruby > %{gem_name}.gemspec
+
+%build
+gem build %{gem_name}.gemspec
+%gem_install
+
+%install
+mkdir -p %{buildroot}%{gem_dir}
+cp -a .%{gem_dir}/* \
+	%{buildroot}%{gem_dir}/
+
+rm -f %{buildroot}%{gem_cache}
+pushd %{buildroot}%{gem_instdir}
+rm -rf \
+	Rakefile \
+	test/ \
+	%{nil}
+popd
+
+%check
+pushd .%{gem_instdir}
+ruby -Ilib:.:test test/run-test.rb
+popd
+
+%files
+%license	%{gem_instdir}/doc/text/*gpl*txt
+%dir	%{gem_instdir}
+%dir	%{gem_instdir}/doc
+%dir	%{gem_instdir}/doc/text
+%doc	%{gem_instdir}/doc/text/*.md
+%doc	%{gem_instdir}/README.md
+
+%{gem_libdir}
+%{gem_spec}
+
+%files doc
+%doc	%{gem_docdir}
+
+%changelog
+* Wed May  3 2017 Mamoru TASAKA <mtasaka@tbz.t-com.ne.jp> - 1.0.1-1
+- 1.0.1
+
+* Sun Apr 30 2017 Mamoru TASAKA <mtasaka@tbz.t-com.ne.jp> - 1.0.0-1
+- Initial package
diff --git a/sources b/sources
index e69de29..ce35a15 100644
--- a/sources
+++ b/sources
@@ -0,0 +1 @@
+SHA512 (native-package-installer-1.0.1.gem) = f20a91f266c8fc738a33519fa0324b4918a28f333bb07c6db7d6c29ad5916b27b15fa68dc4d71fc970115e8053aa81e693e58a2ce050f7ffc8ce24bc16006a3e