dev/ref-manual: Remove references to INC_PR

This technique is no longer used (nor necessary), let's just remove it
to avoid any confusion.

(From yocto-docs rev: 8f50d0bf22fea8064c112f52df06dbd6a85a7a83)

Signed-off-by: Paul Eggleton <bluelightning@bluelightning.org>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 0 insertions, 12 deletions

diff --git a/documentation/dev-manual/packages.rst b/documentation/dev-manual/packages.rst
index 90c52beb29..79f21d9f34 100644
--- a/documentation/dev-manual/packages.rst
+++ b/documentation/dev-manual/packages.rst
@@ -227,18 +227,6 @@ default value is "r0", the practice of adding it to a new recipe makes
 it harder to forget to bump the variable when you make changes to the
 recipe in future.
 
-If you are sharing a common ``.inc`` file with multiple recipes, you can
-also use the :term:`INC_PR` variable to ensure that the recipes sharing the
-``.inc`` file are rebuilt when the ``.inc`` file itself is changed. The
-``.inc`` file must set :term:`INC_PR` (initially to "r0"), and all recipes
-referring to it should set :term:`PR` to "${INC_PR}.0" initially,
-incrementing the last number when the recipe is changed. If the ``.inc``
-file is changed then its :term:`INC_PR` should be incremented.
-
-When upgrading the version of a binary package, assuming the :term:`PV`
-changes, the :term:`PR` variable should be reset to "r0" (or "${INC_PR}.0"
-if you are using :term:`INC_PR`).
-
 Usually, version increases occur only to binary packages. However, if
 for some reason :term:`PV` changes but does not increase, you can increase
 the :term:`PE` variable (Package Epoch). The :term:`PE` variable defaults to