diff options
Diffstat (limited to 'documentation')
-rw-r--r-- | documentation/poky-ref-manual/ref-variables.xml | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/documentation/poky-ref-manual/ref-variables.xml b/documentation/poky-ref-manual/ref-variables.xml index 6959b94d73..cbedfd010b 100644 --- a/documentation/poky-ref-manual/ref-variables.xml +++ b/documentation/poky-ref-manual/ref-variables.xml | |||
@@ -1587,6 +1587,25 @@ recipes-graphics/xorg-font/xorg-font-common.inc:INC_PR = "r2" | |||
1587 | </glossdef> | 1587 | </glossdef> |
1588 | </glossentry> | 1588 | </glossentry> |
1589 | 1589 | ||
1590 | <glossentry id='var-PRINC'><glossterm>PRINC</glossterm> | ||
1591 | <glossdef> | ||
1592 | <para>Causes the <filename>PR</filename> variable to dynamically increment. | ||
1593 | This incrementation increases the value of a recipe's revision | ||
1594 | (<filename>PR</filename>) while minimizing the impact of layer ordering.</para> | ||
1595 | <para>In order to ensure multiple <filename>.bbappend</filename> files can co-exist, | ||
1596 | <filename>PRINC</filename> should be self referencing. | ||
1597 | The variable defaults to 0.</para> | ||
1598 | <para>Following is an example that increments <filename>PR</filename> by two: | ||
1599 | <literallayout class='monospaced'> | ||
1600 | PRINC := "${@int(PRINC) + 2}" | ||
1601 | </literallayout> | ||
1602 | It is adviseable not to use strings such as ".= '.1'" with the variable because | ||
1603 | this usage is very sensitive to layer ordering. | ||
1604 | Explicit assignments should be avoided as they cannot adequately represent multiple | ||
1605 | <filename>.bbappend</filename> files.</para> | ||
1606 | </glossdef> | ||
1607 | </glossentry> | ||
1608 | |||
1590 | <glossentry id='var-PV'><glossterm>PV</glossterm> | 1609 | <glossentry id='var-PV'><glossterm>PV</glossterm> |
1591 | <glossdef> | 1610 | <glossdef> |
1592 | <para>The version of the recipe. | 1611 | <para>The version of the recipe. |