1. comp.lang.lisp
    Everybody's favourite newsgroup: comp.lang.lisp (news:comp.lang.lisp) is an excellent place to get help with a programming problem, but if you ask about an obvious homework problem you'll be unmercifully chided, or helped in ways your teacher will least expect
  2. comparisons
    Comparison is a simple library adding comparison functions similar to EQUAL and EQUALP, which handle multiple types gracefully
  3. compatibility layers
    ACL-COMPAT - ACL-COMPAT is a free set of compatibility layers for parts of Franz's ACL system programming API for several Common Lisp implementations atomics - Portability layer for atomic operations like compare-and-swap (CAS) ccl-compat - Clozure CL compatibility module cl-configuration - CL-CONFIGURATION is a package that provides a macro (DEFCONFIGURATION) which can be used to set up various logical pathnames in an elegant way CLAD - The Common Lisp Application Directories (CLAD) library is a simple API editor-hints - The estimable Tobias C Rittweiler is working to develop a CL library called editor hints that aims at giving a portable facility for a Lisp implementation to tell the development environment things about its state global-vars - Define efficient global variables in Common Lisp nontrivial-gray-streams - Like trivial-gray-streams but: Portable Exit - A portability layer for ending the Lisp image Portable-Threads - Portable-threads is the GBBopen project's portable-thread code all packaged up for ASDF-Install ppath - A path manipulation library inspired by Python's os.path trivial-arguments - Tiny CL library to retrieve the arguments list of a function trivial-cltl2 - Compatibility package exporting CLtL2 functionality trivial-macroexpand-all - Provides a macroexpand-all function that calls the implementation-specific equivalent with-user-abort - Provides a portable way to handle Control-C in Lisp
  4. compatible-metaclasses
    compatible-metaclasses validates superclasses according to a simple substitution model, thereby greatly simplifying the definition of class mixins
  5. Compo
    Compo is a language to describe in a natural way simple or complex structures of Music
  6. COMPOSE
    This is one of the hypothetical Common Lisp Utilities
  7. Compression
    Data compression in Common Lisp
  8. COMPUTABLE-REALS
    COMPUTABLE-REALS is a Mathematics library for dealing with arbitrary precision reals
  9. computed-class
    A class metaobject for computed slot values and more
  10. computer vision
    cl-opencv - cl-opencv is a set of CFFI bindings to the OpenCV computer vision library recognize - Common Lisp implementation of single pointer gesture recognition from Rubine's The Automatic Recognition of Gestures