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-rw-r--r--documentation/poky-ref-manual/ref-variables.xml19
1 files changed, 16 insertions, 3 deletions
diff --git a/documentation/poky-ref-manual/ref-variables.xml b/documentation/poky-ref-manual/ref-variables.xml
index 2e3dbb6686..8b1470b533 100644
--- a/documentation/poky-ref-manual/ref-variables.xml
+++ b/documentation/poky-ref-manual/ref-variables.xml
@@ -87,9 +87,22 @@
87 87
88 <glossentry id='var-BBFILE_PRIORITY'><glossterm>BBFILE_PRIORITY</glossterm> 88 <glossentry id='var-BBFILE_PRIORITY'><glossterm>BBFILE_PRIORITY</glossterm>
89 <glossdef> 89 <glossdef>
90 <para>Assigns different priorities to recipe files in different layers. 90 <para>Assigns different priorities to recipe files in different layers.</para>
91 This variable is useful in situations where the same package might appear in multiple layers. 91 <para>This variable is useful in situations where the same package appears in
92 It allows you to choose what takes precedence.</para> 92 more than one layer.
93 Setting BBFILE_PRIORITY allows you to prioritize a
94 layer against other layers that contain the same package - effectively
95 letting you control the precedence for the multiple layers.
96 The precedence established through this variable stands regardless of a
97 layer's package version (PV variable).
98 For example, a layer that has a package with a higher PV value but for
99 which the BBFILE_PRIORITY is set to have a lower precedence still has a
100 lower precedence.</para>
101 <para>A larger value for the BBFILE_PRIORITY variable results in a higher
102 precedence.
103 For example, the value 6 has a higher precedence than the
104 value 5.
105 By default, the BBFILE_PRIORITY variable is set to the value 5.</para>
93 </glossdef> 106 </glossdef>
94 </glossentry> 107 </glossentry>
95 108