mkpkg - Rebuild the system libraries
	   clio - Command Language i/o
	   dbio - Database i/o
	    etc - Miscellaneous system procedures
	    fio - File i/o
	  fmtio - Formatted i/o
	    gio - Graphics i/o
	   imio - Image i/o (bulk data arrays)
	     ki - Kernel interface (networking)
	  memio - Memory i/o (dynamic memory allocation)
	   mtio - Magtape i/o
	    osb - Bit and byte primitives
	    tty - Device independent terminal control
	   vops - Vector operators