Package list: page 61
- cl-uncommonsql
- cl-unicode
- cl-unit
- cl-units
- cl-usocket
- cl-utilities
- cl-uuid
- cl-who
- cl-xlunit
- cl-xmls
- cl-xptest
- cl-yacc
- cl-yason
- cl-zip
- cl-zs3
- clalsadrv
- clam
- clam-chordata
- clam-networkeditor
- clamassassin
- clamav
- clamav-cvdupdate
- clamav-data
- clamav-getfiles
- clamav-unofficial-sigs
- clamcour
- clamfs
- clamsmtp
- clamtk
- clamz
- clanbomber
- clang
- clanlib
- clanlib0
- clap
- clapper
- clara
- clasp
- class.js
- classified-ads
- classmate
- classpath
- classpath-tools
- classworlds
- classycle
- clatd
- claws-mail
- claws-mail-extra-plugins
- claws-mail-themes
- clawsker
- clazy
- clblas
- clblast
- clc-intercal
- cld2
- cldump
- cle
- clean-crypto
- clear-sans
- clearcut