chicken-uninstall —
    uninstall extension library
  
    chicken-uninstall | 
    [OPTION ...] [NAME ...] | 
  
chicken-uninstall removes one or more
    already installed extension libraries for the CHICKEN Scheme system.
    PATTERN may be a regular expression naming multiple
    extensions or just an extension name.
The program accepts following arguments:
  -h,
    -help 
  - Show usage and exit.
 
  -version 
  - Show version and exit.
 
  -force 
  - Don't ask, just delete whatever matches.
 
  -match 
  - Treat NAME as a glob pattern.
 
  -s,
    -sudo 
  - Use external program to elevate privileges for deleting files. The program
      defaults to
      sudo(8)
      but can be overridden with 
SUDO environment
      variable. 
  -host 
  - When cross-compiling, only uninstall host extensions.
 
  -target 
  - When cross-compiling, only uninstall target extensions.
 
The following environment variables change the behaviour of
    chicken-uninstall:
  CHICKEN_INSTALL_REPOSITORY 
  - The path where extension libraries are installed. Defaults to the package
      library path selected during configuration (usually
      $prefix/lib/chicken/<binary-version>).
 
  SUDO 
  - The command to execute when using 
-s flag in
      command. If not provided, defaults to
      sudo(8). 
The chicken-uninstall utility
    exits 0 on success, and >0 if an error occurs.