Provided by: clisp_2.49.20210628.gitde01f0f-2_amd64 bug


       clisp - ANSI[38] Common Lisp[1] compiler, interpreter and debugger.


       clisp [[-h] | [--help]] [--version] [--license] [-help-image] [-B lisp-lib-dir] [-b]
             [-K linking-set] [-M mem-file] [-m memory-size] [-L language] [-N locale-dir]
             [-Edomain encoding] [[-q] | [--quiet] | [--silent] | [-v] | [--verbose]]
             [-on-error action] [-repl] [-w] [-I] [-disable-readline] [[-ansi] | [-traditional]]
             [-modern] [-p package] [-C] [-norc] [-lp directory...] [-i init-file...]
             [-c [-l] lisp-file [-o output-file]...] [-x expressions...]
             [lisp-file [argument...]]


       Invokes the Common Lisp[1] interpreter and compiler.

   Interactive Mode
       When called without batch arguments, executes the read-eval-print loop[2], in which
       expressions are in turn

       •   READ[3] from the standard input,

       •   EVAL[4]uated by the lisp interpreter,

       •   and their results are PRINT[5]ed to the standard output.

   Non-Interactive (Batch) Mode
       Invoked with -c, compiles the specified lisp files to a platform-independent bytecode
       which can be executed more efficiently.

       Invoked with -x, executes the specified lisp expressions.

       Invoked with lisp-file, runs the specified lisp file.

       Batch mode activates the -q option.


           Displays a help message on how to invoke CLISP[6].

           Displays the CLISP[6] version number, as given by the function
           LISP-IMPLEMENTATION-VERSION[7], the value of the variable *FEATURES*, as well some
           other information.

           Displays a summary of the licensing information, the GNU[8] GPL[9].

           Displays information about the memory image being invoked: whether is it suitable for
           scripting as well as the :DOCUMENTATION supplied to EXT:SAVEINITMEM.

       -B lisp-lib-dir
           Specifies the installation directory. This is the directory containing the linking
           sets and other data files. This option is normally not necessary, because the
           installation directory is already built-in into the clisp executable. Directory
           lisp-lib-dir can be changed dynamically using the SYMBOL-MACRO[10]

           Print the installation directory and exit immediately. The namestring of
           CUSTOM:*LIB-DIRECTORY* is printed without any quotes. This is mostly useful in module
           Makefiles, see, e.g., modules/syscalls/ (file in the CLISP sources).

       -K linking-set
           Specifies the linking set to be run. This is a directory (relative to the
           lisp-lib-dir) containing at least a main executable (runtime) and an initial memory
           image. Possible values are

               the core CLISP[6]

               core plus all the modules with which this installation was built, see
               Section 32.2, “External Modules”.

           The default is base.

       -M mem-file
           Specifies the initial memory image. This must be a memory dump produced by the
           EXT:SAVEINITMEM function by this clisp runtime.  It may have been compressed using
           GNU[8] gzip[11].

       -m memory-size
           Sets the amount of memory CLISP[6] tries to grab on startup. The amount may be given

               measured in bytes

               measured in machine words (4×n on 32-bit platforms, 8×n on 64-bit platforms)

               measured in kilobytes

               measured in kilowords

               measured in megabytes

               measured in megawords

           The default is 3 megabytes.  The argument is constrained above 100 KB.

           This version of CLISP[6] eventually uses the entire memory-size.

       -L language
           Specifies the language CLISP[6] uses to communicate with the user. This may be one of
           english, german, french, spanish, dutch, russian, danish. Other languages may be
           specified through the environment variable[12] LANG, provided the corresponding
           message catalog is installed.  The language may be changed dynamically using the

       -N locale-dir
           Specifies the base directory of locale files.  CLISP[6] will search its message
           catalogs in locale-dir/language/LC_MESSAGES/ This directory may be changed
           dynamically using the SYMBOL-MACRO[10] CUSTOM:*CURRENT-LANGUAGE*.

       -Edomain encoding
           Specifies the encoding used for the given domain, overriding the default which depends
           on the environment variable[12]s LC_ALL, LC_CTYPE, LANG.  domain can be

               affecting CUSTOM:*DEFAULT-FILE-ENCODING*

               affecting CUSTOM:*PATHNAME-ENCODING*

               affecting CUSTOM:*TERMINAL-ENCODING*

               affecting CUSTOM:*FOREIGN-ENCODING*

               affecting CUSTOM:*MISC-ENCODING*

               affecting all of the above.

               Note that the values of these SYMBOL-MACRO[10]s that have been saved in a memory
               image are ignored: these SYMBOL-MACRO[10]s are reset based on the OS environment
               after the memory image is loaded. You have to use the RC file, CUSTOM:*INIT-HOOKS*
               or init function to set them on startup, but it is best to set the aforementioned
               environment variable[12]s appropriately for consistency with other programs. See
               Section 31.1, “Customizing CLISP Process Initialization and Termination”.

           Change verbosity level: by default, CLISP[6] displays a banner at startup and a
           good-bye message when quitting, and initializes *LOAD-VERBOSE*[13] and
           *COMPILE-VERBOSE*[14] to T[15], and *LOAD-PRINT*[13] and *COMPILE-PRINT*[14] to
           NIL[16], as per [ANSI CL standard]. The first -q removes the banner and the good-bye
           message, the second sets variables *LOAD-VERBOSE*[13], *COMPILE-VERBOSE*[14] and
           CUSTOM:*SAVEINITMEM-VERBOSE* to NIL[16]. The first -v sets variables
           T[15], the second sets CUSTOM:*LOAD-ECHO* to T[15]. These settings affect the output
           produced by -i and -c options. Note that these settings persist into the
           read-eval-print loop[2]. Repeated -q and -v cancel each other, e.g., -q -q -v -v -v is
           equivalent to -v.

       -on-error action
           Establish global error handlers, depending on action:.PP appease
               continuable[17] ERROR[18]s are turned into WARNING[19]s (with EXT:APPEASE-CERRORS)
               other ERROR[18]s are handled in the default way

               ERROR[18]s INVOKE-DEBUGGER[20] (the normal read-eval-print loop[2] behavior),
               disables batch mode imposed by -c, -x, and lisp-file,

               continuable[17] ERROR[18]s are appeased, other ERROR[18]s are ABORT[21]ed with

               continuable[17] ERROR[18]s are appeased, other ERROR[18]s terminate CLISP[6] with
               EXT:EXIT-ON-ERROR (the normal batch mode behavior).

           See also EXT:SET-GLOBAL-HANDLER.

           Start an interactive read-eval-print loop[2] after processing the -c, -x, and
           lisp-file options and on any ERROR[18] SIGNAL[22]ed during that processing.

           Disables batch mode.

           Wait for a keypress after program termination.

           Interact better with Emacs[23] (useful when running CLISP[6] under Emacs[23] using
           SLIME[24], ILISP[25] et al). With this option, CLISP[6] interacts in a way that
           Emacs[23] can deal with:

           •   unnecessary prompts are not suppressed.

           •   The GNU[8] readline[26] library treats TAB (see TAB key) as a normal
               self-inserting character (see Q: A.4.6).

           Do not use GNU[8] readline[26] even when it has been linked against. This can be used
           if one wants to paste non-ASCII[27] characters, or when GNU[8] readline[26] misbehaves
           due to installation (different versions on the build and install machines) or setup
           (bad TERM environment variable[12] value) issues.

           Comply with the [ANSI CL standard] specification even where CLISP[6] has been
           traditionally different by setting the SYMBOL-MACRO[10] CUSTOM:*ANSI* to T[15].

           Traditional: reverses the residual effects of -ansi in the saved memory image.

           Provides a modern view of symbols: at startup the *PACKAGE*[28] variable will be set
           to the “CS-COMMON-LISP-USER” package, and the *PRINT-CASE*[29] will be set to
           :DOWNCASE. This has the effect that symbol lookup is case-sensitive (except for
           keywords and old-style packages) and that keywords and uninterned symbols are printed
           with lower-case preferrence. See Section 11.5, “Package Case-Sensitivity”.

       -p package
           At startup the value of the variable *PACKAGE*[28] will be set to the package named
           package. The default is the value of *PACKAGE*[28] when the image was saved, normally

           Compile when loading: at startup the value of the variable CUSTOM:*LOAD-COMPILING*
           will be set to T[15]. Code being LOAD[31]ed will then be COMPILE[32]d on the fly. This
           results in slower loading, but faster execution.

           Normally CLISP[6] loads the user “run control” (RC)[33] file on startup (this happens
           after the -C option is processed). The file loaded is .clisprc.lisp or .clisprc.fas in
           the home directory USER-HOMEDIR-PATHNAME[34], whichever is newer. This option, -norc,
           prevents loading of the RC file.

       -lp directory
           Specifies directories to be added to CUSTOM:*LOAD-PATHS* at startup. This is done
           after loading the RC file (so that it does not override the command-line option) but
           before loading the init-files specified by the -i options (so that the init-files will
           be searched for in the specified directories). Several -lp options can be given; all
           the specified directories will be added.

       -i init-file
           Specifies initialization files to be LOAD[31]ed at startup. These should be lisp files
           (source or compiled). Several -i options can be given; all the specified files will be
           loaded in order.

       -c lisp-file
           Compiles the specified lisp-files to bytecode (*.fas). The compiled files can then be
           LOAD[31]ed instead of the sources to gain efficiency.

           Imposes batch mode.

       -o outputfile
           Specifies the output file or directory for the compilation of the last specified

           Produce a bytecode DISASSEMBLE[35] listing (*.lis) of the files being compiled. Useful
           only for debugging. See Section 24.1, “Function COMPILE-FILE” for details.

       -x expressions
           Executes a series of arbitrary expressions instead of a read-eval-print loop[2]. The
           values of the expressions will be output to *STANDARD-OUTPUT*[36]. Due to the argument
           processing done by the shell, the expressions must be enclosed in double quotes, and
           double quotes and backslashes must be escaped with backslashes.

           Imposes batch mode.

       lisp-file [ argument ... ]
           Loads and executes a lisp-file, as described in Section 32.6.2, “Scripting with
           CLISP”. There will be no read-eval-print loop[2]. Before lisp-file is loaded, the
           variable EXT:*ARGS* will be bound to a list of strings, representing the arguments.
           The first line of lisp-file may start with #!, thus permitting CLISP[6] to be used as
           a script interpreter.  If lisp-file is -, the *STANDARD-INPUT*[36] is used instead of
           a file.

           This option is disabled if the memory image was created by EXT:SAVEINITMEM with
           NIL[16] :SCRIPT argument. In that case the LIST[37] EXT:*ARGS* starts with lisp-file.

           This option must be the last one.

           No RC file will be executed.

           Imposes batch mode.

       As usual, -- stops option processing and places all remaining command line arguments into


       The language implemented is ANSI[39][38] Common Lisp[1]. The implementation mostly
       conforms to the ANSI Common Lisp standard, see Section 31.10, “Maximum ANSI CL
       compliance”.  [ANSI CL] ANSI CL standard1994. ANSI[40] INCITS 226-1994 (R1999)
           Information Technology - Programming Language - Common Lisp
           [formerly ANSI X3.226-1994 (R1999)].


           get context-sensitive on-line help, see Chapter 25, Environment chap-25.

       (APROPOS name)
           list the SYMBOL[41]s matching name.

       (DESCRIBE symbol)
           describe the symbol.

           quit CLISP[6].

       EOF (Control+D on UNIX[42])
           leave the current level of the read-eval-print loop[2] (see also Section 1.1, “Special
           Symbols sec_1-4-1-3”).

       arrow keys
           for editing and viewing the input history, using the GNU[8] readline[26] library.

       TAB key
           Context sensitive:

           •   If you are in the “function position” (in the first symbol after an opening paren
               or in the first symbol after a #'[44]), the completion is limited to the symbols
               that name functions.

           •   If you are in the "filename position" (inside a string after #P[45]), the
               completion is done across file names, GNU[8] bash[46]-style.

           •   If you have not typed anything yet, you will get a help message, as if by the help

           •   If you have not started typing the next symbol (i.e., you are at a whitespace),
               the current function or macro is DESCRIBEd.

           •   Otherwise, the symbol you are currently typing is completed.


       Common Lisp[1] is a programmable programming language.  —John Foderaro[47].PP When
       CLISP[6] is invoked, the runtime loads the initial memory image and outputs the prompt; at
       which one can start typing DEFVAR[48]s, DEFUN[49]s and DEFMACRO[50]s.

       To avoid having to re-enter the same definitions by hand in every session, one can create
       a lisp file with all the variables, functions, macros, etc.; (optionally) compile it with
       COMPILE-FILE[51]; and LOAD[31] it either by hand or from the RC file; or save a memory
       image to avoid the LOAD[31] overhead.

       However, sometimes one needs to use some functionality implemented in another language,
       e.g., call a C[52] library function. For that one uses the Foreign Function Interface
       and/or the External Modules facility. Finally, the truly adventurous ones might delve into
       Extending the Core.


           startup driver (an executable or, rarely, a shell script) which remembers the location
           of the runtime and starts it with the appropriate arguments
           main executable (runtime) - the part of CLISP[6] implemented in C[52].

           initial memory image (the part of CLISP[6] implemented in lisp)

           site-dependent configuration (should have been customized before CLISP[6] was built);
           see Section 31.12, “Customizing CLISP behavior”

           lisp source

           lisp code, compiled by CLISP[6]

           lisp source library information, generated by COMPILE-FILE, see Section 24.3,
           “Function REQUIRE”.

           C code, compiled from lisp source by CLISP[6] (see Section 32.3, “The Foreign Function
           Call Facility”)

       For the CLISP[6] source files, see Chapter 34, The source files of CLISP.


       All environment variable[12]s that CLISP[6] uses are read at most once.

           specifies the language CLISP[6] uses to communicate with the user. The legal values
           are identical to those of the -L option which can be used to override this environment

           specifies the locale which determines the character set in use. The value can be of
           the form language or language_country or language_country.charset, where language is a
           two-letter ISO 639 language code (lower case), country is a two-letter ISO 3166
           country code (upper case).  charset is an optional character set specification, and
           needs normally not be given because the character set can be inferred from the
           language and country. This environment variable[12] can be overridden with the
           -Edomain encoding option.

           specifies the language CLISP[6] uses to communicate with the user, unless it is
           already specified through the environment variable[12] CLISP_LANGUAGE or the -L
           option.  It also specifies the locale determining the character set in use, unless
           already specified through the environment variable[12] LC_CTYPE.  The value may begin
           with a two-letter ISO 639 language code, for example en, de, fr.

           used for determining the value of the function USER-HOMEDIR-PATHNAME[34].

           is used to find the interactive command interpreter called by EXT:SHELL.

           determines the screen size recognized by the pretty printer.

           for SHORT-SITE-NAME[53] and LONG-SITE-NAME[53] in config.lisp.

           for CUSTOM:CLHS-ROOT in config.lisp.

           for CUSTOM:IMPNOTES-ROOT in config.lisp.

           for editor-name in config.lisp.



       See Section 21.1.1, “Initialization of Standard Streams”.


           CLISP impnotes
           CMU CL[54] - cmucl(1)
           SBCL[55] - sbcl(1)
           Emacs[23] - emacs(1)


       When you encounter a bug in CLISP[6] or in its documentation (this manual page or CLISP
       impnotes), please report it to the CLISP[6] SourceForge bug tracker[56]. Login, either to
       your SourceForge[57] account, or to your OpenID[58] account. Then click the "Create
       Ticket" link on the left-hand side.

       Before submitting a bug report, please take the following basic steps to make the report
       more useful:

        1. Unless your bug is locale-specific, please set your locale to en. You cannot assume
           that CLISP[6] maintainers understand a language other than English[59], even though,
           historically, few CLISP[6] maintainers spoke English natively.

        2. Do a clean build (remove your build directory and build CLISP[6] with ./configure
           --cbcx build or at least do a make distclean before make).

        3. If you are reporting a “hard crash” (segmentation fault, bus error, core dump etc),
           please do ./configure --with-debug --cbcx build-g ; cd build-g; gdb, then
           load the appropriate linking set by either base or full gdb[60] command, and report
           the backtrace (see also Q: A.1.1.10).

        4. If you are using pre-built binaries and experience a hard crash, the problem is likely
           to be in the incompatibilities between the platform on which the binary was built and
           yours; please try compiling the sources and report the problem if it persists.

       When submitting a bug report, please specify the following information:

        1. What is your platform (uname -a on a UNIX[42] system)?

        2. Please supply the full output (copy and paste) of all the error messages.

        3. Please provide detailed instructions on how to reproduce the problem.

        4. Where did you get the CLISP[6] sources or binaries? When? (Absolute dates, e.g.,
           “2006-01-17”, are preferred over the relative ones, e.g., “2 days ago”. If you are
           using Git[61], please supply the output of git rev-list --max-count=1 HEAD).

        5. If you are reporting a build failure:

            1. What is your compiler version?

            2. What is your GNU[8] libc[62] version (on GNU[8]/Linux[63])?

            3. What is the version of each of the DEPENDENCIES (file in the CLISP sources)?

            4. How did you run configure (file in the CLISP sources)? We need the options you
               used as well as the values of the environment variable[12]s

            5. Please attach all build logs.

        6. If you have a working CLISP[6], please supply the output of clisp --version


       •   Enhance the compiler so that it can inline local functions.

       •   Embed CLISP[6] in VIM[64].


       Bruno Haible <>
           The original author and long-time maintainer.

       Michael Stoll <>
           The original author.

       Sam Steingold <>
           Co-maintainer since 1998.

           See COPYRIGHT (file in the CLISP sources)  for the list of other contributors and the


       Copyright © 1992-2010 Bruno Haible
       Copyright © 1998-2010 Sam Steingold


        1. Common Lisp

        2. read-eval-print loop
           [set $man.base.url.for.relative.links]/sec_25-1-1

        3. READ

        4. EVAL

        5. PRINT

        6. CLISP


        8. GNU

        9. GPL

       10. SYMBOL-MACRO
           [set $man.base.url.for.relative.links]/mac_define-symbol-macro

       11. gzip

       12. environment variable
           [set $man.base.url.for.relative.links]/basedefs/V1_chap08.html

       13. *LOAD-VERBOSE*

       14. *COMPILE-VERBOSE*

       15. T

       16. NIL

       17. continuable
           [set $man.base.url.for.relative.links]/clhs/glo

       18. ERROR

       19. WARNING


       21. ABORT

       22. SIGNAL

       23. Emacs

       24. SLIME

       25. ILISP

       26. readline

       27. ASCII

       28. *PACKAGE*

       29. *PRINT-CASE*

       30. “COMMON-LISP-USER”
           [set $man.base.url.for.relative.links]/sec_11-1-2-2

       31. LOAD

       32. COMPILE

       33. “run
                control” (RC)


       35. DISASSEMBLE

       36. *STANDARD-OUTPUT*

       37. LIST

       38. ANSI

       39. The American National Standards Institute

       40. ANSI

       41. SYMBOL

       42. UNIX

       43. Win32

       44. #'
           [set $man.base.url.for.relative.links]/sec_2-4-8-2

       45. #P
           [set $man.base.url.for.relative.links]/sec_2-4-8-14

       46. bash

       47. John Foderaro

       48. DEFVAR

       49. DEFUN

       50. DEFMACRO

       51. COMPILE-FILE

       52. C

       53. SHORT-SITE-NAME

       54. CMU CL

       55. SBCL

       56. SourceForge bug tracker

       57. SourceForge

       58. OpenID

       59. English

       60. gdb

       61. Git

       62. libc

       63. Linux

       64. VIM