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bitbake: user-manual-metadata.xml: Add details about environment variables used by BitBake 

(Bitbake rev: 91d3e60a48d2269adfd0084eb6f1bcdb211dbce1)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Richard Purdie 2014-03-09 18:47:30 -07:00
parent d327013815
commit bd23241655
1 changed files with 13 additions and 0 deletions
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13
bitbake/doc/user-manual/user-manual-metadata.xml
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@ -957,6 +957,19 @@
<section id='parsing-configuration-files'>
<title>Configuration files</title>
<para>
Prior to parsing configuration files, Bitbake looks
at certain variables, including:
<itemizedlist>
<listitem><para><filename>BB-ENV-WHITELIST</filename></para></listitem>
<listitem><para><filename>BB_PRESERVE-ENV</filename></para></listitem>
<listitem><para><filename>BB_ENV_EXTRAWHITE</filename></para></listitem>
<listitem><para><filename>BB_ORIG_ENV</filename></para></listitem>
<listitem><para><filename>PREFERRED_VERSIONS</filename></para></listitem>
<listitem><para><filename>PREFERRED_PROVIDERS</filename></para></listitem>
</itemizedlist>
</para>
<para>
The first kind of metadata in BitBake is configuration metadata.
This metadata is global, and therefore affects all packages and