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documentation: poky-ref-manual - method for discovering features 

Fixes [YOCTO #3292]

Added a bit to the start of the Features chapter to give the user
a method they can use to discover recipes that are checking for
features added to the image.

(From yocto-docs rev: 261cc16ad900f7f5254fa97dab82beab94f717d3)

Signed-off-by: Scott Rifenbark <scott.m.rifenbark@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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Scott Rifenbark 2012-11-19 15:20:13 -08:00 committed by Richard Purdie
parent 5fd4f1ad05
commit 095bdd85ed
1 changed files with 19 additions and 0 deletions
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documentation/poky-ref-manual/ref-features.xml
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@ -24,6 +24,25 @@
be included if the distribution itself does not support them.
</para>
<para>
One method you can use to determine which recipes are checking to see if a
particular feature is contained or not is to <filename>grep</filename> through
the metadata for the feature.
Here is an example that discovers the recipes whose build is potentially
changed based on a given feature:
<literallayout class='monospaced'>
$ cd $HOME/poky
$ git grep 'contains.*MACHINE_FEATURES.*&lt;feature&gt;'
</literallayout>
</para>
<para>
This chapter provides a reference of shipped machine and distro features
you can include as part of the image, a reference on image types you can
build, and a reference on feature backfilling.
</para>
<section id='ref-features-distro'>
<title>Distro</title>