Rely on autorequires and autoprovides.

rubygem-rack.spec

@@ -22,8 +22,10 @@ Group:          Development/Languages
 License:        MIT and (Ruby or BSD)
 URL:            http://rubyforge.org/projects/%{gem_name}/
 Source0:        http://gems.rubyforge.org/gems/%{gem_name}-%{version}.gem
+%if 0%{?fc20} || 0%{?el6} || 0%{?el7}
 Requires:       ruby(rubygems)
 Requires:       ruby(release)
+%endif
 BuildRequires:  ruby
 BuildRequires:  rubygems-devel
 %if 0%{?enable_checks}
@@ -38,7 +40,9 @@ BuildRequires:  rubygem(thin)
 # if it will ever be.
 # BuildRequires:  lighttpd-fastcgi
 BuildArch:      noarch
+%if 0%{?fc20} || 0%{?el6} || 0%{?el7}
 Provides:       rubygem(%{gem_name}) = %{version}
+%endif
 Provides:       bundled(okjson) = 20130206
 
 %description
@@ -122,6 +126,7 @@ popd
 %changelog
 * Thu Sep 25 2014 Steve Traylen <steve.traylen@cern.ch> - 1:1.5.2-4
 - Add enable_check flag and disable check for .el7.
+- Rely on autorequires and autoprovides.
 
 * Sun Jun 08 2014 Fedora Release Engineering <rel-eng@lists.fedoraproject.org> - 1:1.5.2-3
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_21_Mass_Rebuild