-package: libtool
-package: metadata
-package: mysql mysql-devel mysql-server
-package: python python-devel
-package: doxygen
-package: vixie-cron
-package: xmlsec1 xmlsec1-openssl
-package: udev
+package: libtool
+package<=f21: metadata
+package: mysql mysql-devel mysql-server
+package<=f27: python python-devel
+package>=f29: python2 python-unversioned-command python2-devel
+package: python3 python3-devel
+package: doxygen
+package: cronie
+package: xmlsec1 xmlsec1-openssl