diff --git a/documentation/ref-manual/ref-variables.xml b/documentation/ref-manual/ref-variables.xml index 44f3bd96d5..bdddfb3301 100644 --- a/documentation/ref-manual/ref-variables.xml +++ b/documentation/ref-manual/ref-variables.xml @@ -600,12 +600,14 @@ Core layer for images cannot be removed COMPATIBLE_MACHINE - A regular expression which evaluates to match the machines the recipe - works with. - It stops recipes being run on machines for which they are not compatible. + A regular expression that evaluates to match the machines + with which the recipe works. + You can use the variable to stop recipes from being run + on machines for which they are not compatible. This is particularly useful with kernels. - It also helps to increase parsing speed as further parsing of the recipe is skipped - if it is found the current machine is not compatible. + The variable also helps to increase parsing speed as + further parsing of the recipe is skipped if it is found + the current machine is not compatible.