-m, --mr-proper - clean all temporarily created files (in BUILD, SOURCES,
SPECS and \$RPM_BUILD_ROOT). Doesn't run any rpm building.
-cf, --cvs-force - use -f when tagging
--D '<macro> <value>', --define '<macro> <value>'
+--define '<macro> <value>'
- define a macro <macro> with value <value>,
--depth <number> - make shallow fetch
--alt_kernel <kernel>