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documentation/poky-ref-manual/ref-variables.xml: new PRINC glossary term 

Added a first draft of the glossary term PRINC.

(From yocto-docs rev: 418862011e79940ee378f64c6171618d29568014)

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 2012-09-21 06:38:44 -07:00 committed by Richard Purdie
parent 09c0ccdc9a
commit 3232d19af1
1 changed files with 19 additions and 0 deletions
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documentation/poky-ref-manual/ref-variables.xml
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@ -1587,6 +1587,25 @@ recipes-graphics/xorg-font/xorg-font-common.inc:INC_PR = "r2"
</glossdef>
</glossentry>
<glossentry id='var-PRINC'><glossterm>PRINC</glossterm>
<glossdef>
<para>Causes the <filename>PR</filename> variable to dynamically increment.
This incrementation increases the value of a recipe's revision
(<filename>PR</filename>) while minimizing the impact of layer ordering.</para>
<para>In order to ensure multiple <filename>.bbappend</filename> files can co-exist,
<filename>PRINC</filename> should be self referencing.
The variable defaults to 0.</para>
<para>Following is an example that increments <filename>PR</filename> by two:
<literallayout class='monospaced'>
PRINC := "${@int(PRINC) + 2}"
</literallayout>
It is adviseable not to use strings such as ".= '.1'" with the variable because
this usage is very sensitive to layer ordering.
Explicit assignments should be avoided as they cannot adequately represent multiple
<filename>.bbappend</filename> files.</para>
</glossdef>
</glossentry>
<glossentry id='var-PV'><glossterm>PV</glossterm>
<glossdef>
<para>The version of the recipe.