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><DIV
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><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
>&nbsp;--&nbsp;Define a single configuration option</DT
><DT
><A
HREF="ref.cdl-component.html"
><TT
CLASS="LITERAL"
>cdl_component</TT
></A
>&nbsp;--&nbsp;Define a component, a collection of configuration options</DT
><DT
><A
HREF="ref.cdl-package.html"
><TT
CLASS="LITERAL"
>cdl_package</TT
></A
>&nbsp;--&nbsp;Define a package, a component that can be distributed</DT
><DT
><A
HREF="ref.cdl-interface.html"
><TT
CLASS="LITERAL"
>cdl_interface</TT
></A
>&nbsp;--&nbsp;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
>&nbsp;--&nbsp;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
>&nbsp;--&nbsp;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
>&nbsp;--&nbsp;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
>&nbsp;--&nbsp;Provide a default value for this option using a CDL expression.</DT
><DT
><A
HREF="ref.define.html"
><SPAN
CLASS="PROPERTY"
>define</SPAN
></A
>&nbsp;--&nbsp;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
>&nbsp;--&nbsp;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
>&nbsp;--&nbsp;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
>&nbsp;--&nbsp;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
>&nbsp;--&nbsp;Provide a textual description for an option.</DT
><DT
><A
HREF="ref.display.html"
><SPAN
CLASS="PROPERTY"
>display</SPAN
></A
>&nbsp;--&nbsp;Provide a short string describing this option.</DT
><DT
><A
HREF="ref.doc.html"
><SPAN
CLASS="PROPERTY"
>doc</SPAN
></A
>&nbsp;--&nbsp;The location of online-documentation for a configuration option.</DT
><DT
><A
HREF="ref.flavor.html"
><SPAN
CLASS="PROPERTY"
>flavor</SPAN
></A
>&nbsp;--&nbsp;Specify the nature of a configuration option.</DT
><DT
><A
HREF="ref.hardware.html"
><SPAN
CLASS="PROPERTY"
>hardware</SPAN
></A
>&nbsp;--&nbsp;Specify that a package is tied to specific hardware.</DT
><DT
><A
HREF="ref.if-define.html"
><SPAN
CLASS="PROPERTY"
>if_define</SPAN
></A
>&nbsp;--&nbsp;Output a common preprocessor construct to a configuration
header file.</DT
><DT
><A
HREF="ref.implements.html"
><SPAN
CLASS="PROPERTY"
>implements</SPAN
></A
>&nbsp;--&nbsp;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
>&nbsp;--&nbsp;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
>&nbsp;--&nbsp;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
>&nbsp;--&nbsp;Impose constraints on the possible values for an option.</DT
><DT
><A
HREF="ref.library.html"
><SPAN
CLASS="PROPERTY"
>library</SPAN
></A
>&nbsp;--&nbsp;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
>&nbsp;--&nbsp;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
>&nbsp;--&nbsp;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
>&nbsp;--&nbsp;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
>&nbsp;--&nbsp;Control the location of an option in the configuration hierarchy.</DT
><DT
><A
HREF="ref.requires.html"
><SPAN
CLASS="PROPERTY"
>requires</SPAN
></A
>&nbsp;--&nbsp;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
>&nbsp;--&nbsp;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
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