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+>The <SPAN
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+>eCos</SPAN
+> Component Writer's Guide</TH
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+><H1
+><A
+NAME="REF.HARDWARE"><SPAN
+CLASS="PROPERTY"
+>hardware</SPAN
+></H1
+><DIV
+CLASS="REFNAMEDIV"
+><A
+NAME="AEN4413"
+></A
+><H2
+>Name</H2
+>Property <SPAN
+CLASS="PROPERTY"
+>hardware</SPAN
+> -- Specify that a package is tied to specific hardware.</DIV
+><DIV
+CLASS="REFSYNOPSISDIV"
+><A
+NAME="AEN4417"><H2
+>Synopsis</H2
+><TABLE
+BORDER="5"
+BGCOLOR="#E0E0F0"
+WIDTH="70%"
+><TR
+><TD
+><PRE
+CLASS="SYNOPSIS"
+>cdl_option <name> {
+ active_if <condition>
+ …
+}</PRE
+></TD
+></TR
+></TABLE
+></DIV
+><DIV
+CLASS="REFSECT1"
+><A
+NAME="AEN4419"
+></A
+><H2
+>Description</H2
+><P
+>Some packages such as device drivers and HAL packages are
+hardware-specific, and generally it makes no sense to add such
+packages to a configuration unless the corresponding hardware is
+present on your target system. Typically hardware package selection
+happens automatically when you select your target. The <SPAN
+CLASS="PROPERTY"
+>hardware</SPAN
+>
+property can be used in the body of a <TT
+CLASS="LITERAL"
+>cdl_package</TT
+> command to
+indicate that the package is hardware-specific.</P
+><DIV
+CLASS="NOTE"
+><BLOCKQUOTE
+CLASS="NOTE"
+><P
+><B
+>Note: </B
+>At the time of writing the <SPAN
+CLASS="PROPERTY"
+>hardware</SPAN
+> property is largely ignored by
+the configuration tools, but this may change in future. Amongst other
+possible changes, for hardware-specific packages such as device
+drivers and HAL packages, the current scheme of generating a
+configuration header file name based purely on the package name may be
+abandoned. Instead all hardware packages would send their
+configuration data to a single header file, <TT
+CLASS="FILENAME"
+>pkgconf/hardware.h</TT
+>. This would make it
+easier for code to obtain details of the current hardware, but
+obviously there are compatibility issues. For now it is recommended
+that all hardware packages specify their configuration header file
+explicitly.</P
+></BLOCKQUOTE
+></DIV
+></DIV
+><DIV
+CLASS="REFSECT1"
+><A
+NAME="AEN4428"
+></A
+><H2
+>Example</H2
+><TABLE
+BORDER="5"
+BGCOLOR="#E0E0F0"
+WIDTH="70%"
+><TR
+><TD
+><PRE
+CLASS="PROGRAMLISTING"
+>cdl_package CYGPKG_HAL_ARM {
+ display "ARM architecture"
+ parent CYGPKG_HAL
+ hardware
+ include_dir cyg/hal
+ define_header hal_arm.h
+ …
+}</PRE
+></TD
+></TR
+></TABLE
+></DIV
+><DIV
+CLASS="REFSECT1"
+><A
+NAME="AEN4431"
+></A
+><H2
+>See Also</H2
+><P
+>Property <A
+HREF="ref.define-header.html"
+><SPAN
+CLASS="PROPERTY"
+>define_header</SPAN
+></A
+>, and
+command <A
+HREF="ref.cdl-package.html"
+><TT
+CLASS="LITERAL"
+>cdl_package</TT
+></A
+>.</P
+></DIV
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+>
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