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<!-- Copyright (C) 2003 Red Hat, Inc. --> <!-- This material may be distributed only subject to the terms --> <!-- and conditions set forth in the Open Publication License, v1.0 --> <!-- or later (the latest version is presently available at --> <!-- http://www.opencontent.org/openpub/). --> <!-- Distribution of the work or derivative of the work in any --> <!-- standard (paper) book form is prohibited unless prior --> <!-- permission is obtained from the copyright holder. --> <HTML ><HEAD ><TITLE >CDL Language Specification</TITLE ><meta name="MSSmartTagsPreventParsing" content="TRUE"> <META NAME="GENERATOR" CONTENT="Modular DocBook HTML Stylesheet Version 1.76b+ "><LINK REL="HOME" TITLE="The eCos Component Writer's Guide" HREF="cdl-guide.html"><LINK REL="PREVIOUS" TITLE="Building Test Cases" HREF="build.tests.html"><LINK REL="NEXT" TITLE="cdl_option" HREF="ref.cdl-option.html"></HEAD ><BODY CLASS="CHAPTER" BGCOLOR="#FFFFFF" TEXT="#000000" LINK="#0000FF" VLINK="#840084" ALINK="#0000FF" ><DIV CLASS="NAVHEADER" ><TABLE SUMMARY="Header navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TH COLSPAN="3" ALIGN="center" >The <SPAN CLASS="APPLICATION" >eCos</SPAN > Component Writer's Guide</TH ></TR ><TR ><TD WIDTH="10%" ALIGN="left" VALIGN="bottom" ><A HREF="build.tests.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="80%" ALIGN="center" VALIGN="bottom" ></TD ><TD WIDTH="10%" ALIGN="right" VALIGN="bottom" ><A HREF="ref.cdl-option.html" ACCESSKEY="N" >Next</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><DIV CLASS="CHAPTER" ><H1 ><A NAME="REFERENCE">Chapter 5. CDL Language Specification</H1 ><DIV CLASS="TOC" ><DL ><DT ><B >Table of Contents</B ></DT ><DT ><A HREF="ref.cdl-option.html" ><TT CLASS="LITERAL" >cdl_option</TT ></A > -- Define a single configuration option</DT ><DT ><A HREF="ref.cdl-component.html" ><TT CLASS="LITERAL" >cdl_component</TT ></A > -- Define a component, a collection of configuration options</DT ><DT ><A HREF="ref.cdl-package.html" ><TT CLASS="LITERAL" >cdl_package</TT ></A > -- Define a package, a component that can be distributed</DT ><DT ><A HREF="ref.cdl-interface.html" ><TT CLASS="LITERAL" >cdl_interface</TT ></A > -- Define an interface, functionality that can be provided by a number of different implementations.</DT ><DT ><A HREF="ref.active-if.html" ><SPAN CLASS="PROPERTY" >active_if</SPAN ></A > -- Allow additional control over the active state of an option or other CDL entity.</DT ><DT ><A HREF="ref.calculated.html" ><SPAN CLASS="PROPERTY" >calculated</SPAN ></A > -- Used if the current option's value is not user-modifiable, but is calculated using a suitable CDL expression.</DT ><DT ><A HREF="ref.compile.html" ><SPAN CLASS="PROPERTY" >compile</SPAN ></A > -- List the source files that should be built if this option is active and enabled.</DT ><DT ><A HREF="ref.default-value.html" ><SPAN CLASS="PROPERTY" >default_value</SPAN ></A > -- Provide a default value for this option using a CDL expression.</DT ><DT ><A HREF="ref.define.html" ><SPAN CLASS="PROPERTY" >define</SPAN ></A > -- Specify additional <TT CLASS="LITERAL" >#define</TT > symbols that should go into the owning package's configuration header file.</DT ><DT ><A HREF="ref.define-format.html" ><SPAN CLASS="PROPERTY" >define_format</SPAN ></A > -- Control how an option's value will appear in the configuration header file.</DT ><DT ><A HREF="ref.define-header.html" ><SPAN CLASS="PROPERTY" >define_header</SPAN ></A > -- Specify the configuration header file that will be generated for a given package.</DT ><DT ><A HREF="ref.define-proc.html" ><SPAN CLASS="PROPERTY" >define_proc</SPAN ></A > -- Use a fragment of Tcl code to output additional data to configuration header files.</DT ><DT ><A HREF="ref.description.html" ><SPAN CLASS="PROPERTY" >description</SPAN ></A > -- Provide a textual description for an option.</DT ><DT ><A HREF="ref.display.html" ><SPAN CLASS="PROPERTY" >display</SPAN ></A > -- Provide a short string describing this option.</DT ><DT ><A HREF="ref.doc.html" ><SPAN CLASS="PROPERTY" >doc</SPAN ></A > -- The location of online-documentation for a configuration option.</DT ><DT ><A HREF="ref.flavor.html" ><SPAN CLASS="PROPERTY" >flavor</SPAN ></A > -- Specify the nature of a configuration option.</DT ><DT ><A HREF="ref.hardware.html" ><SPAN CLASS="PROPERTY" >hardware</SPAN ></A > -- Specify that a package is tied to specific hardware.</DT ><DT ><A HREF="ref.if-define.html" ><SPAN CLASS="PROPERTY" >if_define</SPAN ></A > -- Output a common preprocessor construct to a configuration header file.</DT ><DT ><A HREF="ref.implements.html" ><SPAN CLASS="PROPERTY" >implements</SPAN ></A > -- Enabling this option provides one instance of a more general interface.</DT ><DT ><A HREF="ref.include-dir.html" ><SPAN CLASS="PROPERTY" >include_dir</SPAN ></A > -- Specify the desired location of a package's exported header files in the install tree.</DT ><DT ><A HREF="ref.include-files.html" ><SPAN CLASS="PROPERTY" >include_files</SPAN ></A > -- List the header files that are exported by a package.</DT ><DT ><A HREF="ref.legal-values.html" ><SPAN CLASS="PROPERTY" >legal_values</SPAN ></A > -- Impose constraints on the possible values for an option.</DT ><DT ><A HREF="ref.library.html" ><SPAN CLASS="PROPERTY" >library</SPAN ></A > -- Specify which library should contain the object files generated by building this package.</DT ><DT ><A HREF="ref.make.html" ><SPAN CLASS="PROPERTY" >make</SPAN ></A > -- Define an additional custom build step associated with an option, resulting in a target that should not go directly into a library.</DT ><DT ><A HREF="ref.make-object.html" ><SPAN CLASS="PROPERTY" >make_object</SPAN ></A > -- Define a custom build step, resulting in an object file that should go into a library.</DT ><DT ><A HREF="ref.no-define.html" ><SPAN CLASS="PROPERTY" >no_define</SPAN ></A > -- Suppress the normal generation of a preprocessor <TT CLASS="LITERAL" >#define</TT > symbol in a configuration header file.</DT ><DT ><A HREF="ref.parent.html" ><SPAN CLASS="PROPERTY" >parent</SPAN ></A > -- Control the location of an option in the configuration hierarchy.</DT ><DT ><A HREF="ref.requires.html" ><SPAN CLASS="PROPERTY" >requires</SPAN ></A > -- List constraints that the configuration should satisfy if a given option is active and enabled..</DT ><DT ><A HREF="ref.script.html" ><SPAN CLASS="PROPERTY" >script</SPAN ></A > -- Include additional configuration information from another CDL script.</DT ></DL ></DIV ><P >This chapter contains reference information for the main <SPAN CLASS="APPLICATION" >CDL</SPAN > commands <TT CLASS="LITERAL" >cdl_option</TT >, <TT CLASS="LITERAL" >cdl_component</TT >, <TT CLASS="LITERAL" >cdl_package</TT > and <TT CLASS="LITERAL" >cdl_interface</TT >, followed by the various properties such as <SPAN CLASS="PROPERTY" >active_if</SPAN > and <SPAN CLASS="PROPERTY" >compile</SPAN > in alphabetical order.</P ></DIV ><DIV CLASS="NAVFOOTER" ><HR ALIGN="LEFT" WIDTH="100%"><TABLE SUMMARY="Footer navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" ><A HREF="build.tests.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="cdl-guide.html" ACCESSKEY="H" >Home</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" ><A HREF="ref.cdl-option.html" ACCESSKEY="N" >Next</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >Building Test Cases</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" > </TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" ><TT CLASS="LITERAL" >cdl_option</TT ></TD ></TR ></TABLE ></DIV ></BODY ></HTML >
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