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Article contents:== Metafile reference The {{.meta}} file describes properties of a downloadable extension (see [[eggs tutorial]] for an explanation of extensions and meta files). The following properties are supported: (synopsis STRING) A short description of the extension (required). (author STRING) The author, optionally with an e-mail address, if desired (required). (maintainer STRING) The maintainer, if not identical to the author. (files STRING ...) The names of all files that should be contained in the egg (optional). (license STRING) The license under which the code is released. Please make sure you use the proper license if you package code written by others (required). Read [[eggs licensing]] for details on how to format this string! (category SYMBOL) A category under which the egg should be listed on the [[http://wiki.call-cc.org/chicken-projects/egg-index-4.html|eggs index page]] (required). Currently the set of categories is fixed, use one of: code-generation Code generation crypt Cryptography data Algorithms and data-structures db Databases debugging Debugging tools doc-tools Documentation tools egg-tools Egg tools ffi Interfacing to other languages graphics Graphics io Input/Output lang-exts Language extensions logic Logic programming macros Macros and meta-syntax math Mathematical libraries misc Miscellaneous net Networking oop Object-oriented programming os OS interface parsing Data formats and parsing sound Sound related stuff testing Unit-testing tools Command line tools ui User interface toolkits web Web programming xml XML processing hell Concurrency and parallelism uncategorized Uncategorized obsolete Unsupported or redundant (needs EXTENSION-ID ...) Any extensions needed to build and use this extension. This should normally be the raw extension-identifier, the same that you would use in a {{require-extension}} form. It may also be a list of the form {{(EXTENSIONNAME VERSION)}} to specify the minimum required version of the extension to depend on. Version should be given as a string, and the comparator does a simple comparison of parts after splitting the string by ".", "-", or "_", numerical comparison for numerical components, and string comparison for non-numerical components. (depends EXT ...) Alias of {{needs}}. (test-depends EXT ...) Specifies dependencies that are required to run the included test-suite. (hidden) Marks this extension as being "hidden", that is: it is available for download and the documentation page is generated, but it will not appear in the official list (mainly intended for preliminary eggs and testing). (platform ID ...) Identifies the platforms where this extension can be used. {{ID ...}} should be one or more ''feature ID''s, i.e. symbols returned by {{build-platform}}, {{software-version}}, {{software-type}}, {{machine-type}} and {{machine-byte-order}}. If a particular type of feature ID is not given, it implies that this egg is portable across all platforms that are described by this type. To see the features available on your system, enter {{,r}} at the {{csi}} prompt. {{ID}} may also be a combination of {{(or ID ...)}}, {{(and ID ...)}} and {{(not ID)}} forms, having the obvious meaning. (foreign-depends LIB ... ) Specifies one or more dependencies for non scheme libraries, provided to aid installation for the end-user. {{LIB ...}} is a list of strings with one entry per dependency. An egg's foreign dependencies can be displayed with chicken-install's {{-show-foreign-depends}} switch. Description of your changes:

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