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ref-manual: Edits to PROVIDES variable.

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More detail added.

(From yocto-docs rev: 84177a600f84af4cc41b9493b46e2a23bc7ccc19)

Signed-off-by: Scott Rifenbark <scott.m.rifenbark@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Scott Rifenbark
2014-06-26 14:29:07 +03:00
committed by Richard Purdie
parent c5ca7cd3dc
commit f8d3114746
1 changed files with 23 additions and 11 deletions
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34
documentation/ref-manual/ref-variables.xml
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@@ -6424,19 +6424,31 @@ recipes-graphics/xorg-font/font-alias_1.0.3.bb:PR = "${INC_PR}.3"
</glossdef>
</glossentry>
<glossentry id='var-PROVIDES'><glossterm>PROVIDES</glossterm>
<glossentry id='var-PROVIDES'><glossterm>PROVIDES</glossterm>
<glossdef>
<para>
A list of aliases that a recipe also provides.
These aliases are useful for satisfying dependencies of
other recipes during the build (as specified by
<filename><link linkend='var-DEPENDS'>DEPENDS</link></filename>).
<note>
A recipe's own
<filename><link linkend='var-PN'>PN</link></filename>
is implicitly already in its
<filename>PROVIDES</filename> list.
</note>
A list of aliases by which a particular recipe can be
known.
By default, a recipe's own
<filename><link linkend='var-PN'>PN</link></filename>
is implicitly already in its <filename>PROVIDES</filename>
list.
If a recipe uses <filename>PROVIDES</filename>, the
additional aliases are synonyms for the recipe and can
be useful satisfying dependencies of other recipes during
the build as specified by
<filename><link linkend='var-DEPENDS'>DEPENDS</link></filename>.
</para>
<para>
Consider the following example
<filename>PROVIDES</filename> statement from a recipe
file <filename>libav_0.8.11.bb</filename>:
<literallayout class='monospaced'>
PROVIDES += "libpostproc"
</literallayout>
The <filename>PROVIDES</filename> statement results in
the "libav" recipe also being known as "libpostproc".
</para>
</glossdef>
</glossentry>