Add cpan2rpm, this is a rpm which can be used to create spec file from cpan tar.gz; Add perl-Net-DNS package, it is necessary for sles12 to support makedns for an issue in the version which shipped with sles12

Former-commit-id: 0475dcaa3d44ace25590909c5fde52292129cc89

cpan2rpm/Buildnote

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+1. The spec file is included in the cpan2rpm-2.028.tar.gz, you can just untar 
+it and extract out the cpan2rpm.spec.
+2. Since the cpan2rpm uses a subroutine interpolate from POD::Text but it is 
+not supported in the latest build of POD::Text. The fix is to replace the
+'POD::Text' with 'POK::PlainText' in the two places of file 'cpan2rpm'.
+3. Generate the cpan2rpm-2.028-1.noarch.rpm as general rpm package.

perl-Net-DNS/Buildnote

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+How to build the perl-Net-DNS
+
+1. cp the Net-DNS-0.80.tar.gz to the rpmbuild/SOURCES/
+2. cp the Net-DNS.spec to the rpmbuild/SPECS/
+3. cd rpmbuild/SPECS/
+4. rpmbuild -bb Net-DNS.spec

perl-Net-DNS/Net-DNS.spec

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+#
+#   - Net::DNS -
+#   This spec file was automatically generated by cpan2rpm [ver: 2.028]
+#   The following arguments were used:
+#       ./Net-DNS-0.80.tar.gz
+#   For more information on cpan2rpm please visit: http://perl.arix.com/
+#
+
+%define pkgname Net-DNS
+%define filelist %{pkgname}-%{version}-filelist
+%define NVR %{pkgname}-%{version}-%{release}
+%define maketest 1
+
+name:      perl-Net-DNS
+summary:   Net-DNS - Perl DNS resolver module
+version:   0.80
+release:   1
+vendor:    Olaf Kolkman <olaf@net-dns.org>
+packager:  Arix International <cpan2rpm@arix.com>
+license:   Artistic
+group:     Applications/CPAN
+url:       http://www.cpan.org
+buildroot: %{_tmppath}/%{name}-%{version}-%(id -u -n)
+buildarch: x86_64
+prefix:    %(echo %{_prefix})
+source:    Net-DNS-0.80.tar.gz
+
+%description
+Net::DNS is a collection of Perl modules that act as a Domain Name System
+(DNS) resolver. It allows the programmer to perform DNS queries that are
+beyond the capabilities of "gethostbyname" and "gethostbyaddr".
+
+The programmer should be somewhat familiar with the format of a DNS packet
+and its various sections. See RFC 1035 or DNS and BIND (Albitz & Liu) for
+details.
+
+#
+# This package was generated automatically with the cpan2rpm
+# utility.  To get this software or for more information
+# please visit: http://perl.arix.com/
+#
+
+%prep
+%setup -q -n %{pkgname}-%{version} 
+chmod -R u+w %{_builddir}/%{pkgname}-%{version}
+
+%build
+grep -rsl '^#!.*perl' . |
+grep -v '.bak$' |xargs --no-run-if-empty \
+%__perl -MExtUtils::MakeMaker -e 'MY->fixin(@ARGV)'
+CFLAGS="$RPM_OPT_FLAGS"
+%{__perl} Makefile.PL `%{__perl} -MExtUtils::MakeMaker -e ' print qq|PREFIX=%{buildroot}%{_prefix}| if \$ExtUtils::MakeMaker::VERSION =~ /5\.9[1-6]|6\.0[0-5]/ '`
+%{__make} 
+%if %maketest
+%{__make} test
+%endif
+
+%install
+[ "%{buildroot}" != "/" ] && rm -rf %{buildroot}
+
+%{makeinstall} `%{__perl} -MExtUtils::MakeMaker -e ' print \$ExtUtils::MakeMaker::VERSION <= 6.05 ? qq|PREFIX=%{buildroot}%{_prefix}| : qq|DESTDIR=%{buildroot}| '`
+
+cmd=/usr/share/spec-helper/compress_files
+[ -x $cmd ] || cmd=/usr/lib/rpm/brp-compress
+[ -x $cmd ] && $cmd
+
+# SuSE Linux
+if [ -e /etc/SuSE-release -o -e /etc/UnitedLinux-release ]
+then
+    %{__mkdir_p} %{buildroot}/var/adm/perl-modules
+    %{__cat} `find %{buildroot} -name "perllocal.pod"`  \
+        | %{__sed} -e s+%{buildroot}++g                 \
+        > %{buildroot}/var/adm/perl-modules/%{name}
+fi
+
+# remove special files
+find %{buildroot} -name "perllocal.pod" \
+    -o -name ".packlist"                \
+    -o -name "*.bs"                     \
+    |xargs -i rm -f {}
+
+# no empty directories
+find %{buildroot}%{_prefix}             \
+    -type d -depth                      \
+    -exec rmdir {} \; 2>/dev/null
+
+%{__perl} -MFile::Find -le '
+    find({ wanted => \&wanted, no_chdir => 1}, "%{buildroot}");
+    print "%doc  Changes README TODO contrib demo";
+    for my $x (sort @dirs, @files) {
+        push @ret, $x unless indirs($x);
+        }
+    print join "\n", sort @ret;
+
+    sub wanted {
+        return if /auto$/;
+
+        local $_ = $File::Find::name;
+        my $f = $_; s|^\Q%{buildroot}\E||;
+        return unless length;
+        return $files[@files] = $_ if -f $f;
+
+        $d = $_;
+        /\Q$d\E/ && return for reverse sort @INC;
+        $d =~ /\Q$_\E/ && return
+            for qw|/etc %_prefix/man %_prefix/bin %_prefix/share|;
+
+        $dirs[@dirs] = $_;
+        }
+
+    sub indirs {
+        my $x = shift;
+        $x =~ /^\Q$_\E\// && $x ne $_ && return 1 for @dirs;
+        }
+    ' > %filelist
+
+[ -z %filelist ] && {
+    echo "ERROR: empty %files listing"
+    exit -1
+    }
+
+%clean
+[ "%{buildroot}" != "/" ] && rm -rf %{buildroot}
+
+%files -f %filelist
+%defattr(-,root,root)
+
+%changelog
+* Tue Oct 28 2014 root@slesmn
+- Initial build.