ref-manual: add BB_CACHEDIR

New in 4.2 (pointer to BitBake manual, changes sent separately for
that).

(From yocto-docs rev: a2112eb3f1084040ad48e392075297b4630b93e1)

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

1 files changed, 3 insertions, 0 deletions

diff --git a/documentation/ref-manual/variables.rst b/documentation/ref-manual/variables.rst
index 2658fad61b..e6915bd385 100644
--- a/documentation/ref-manual/variables.rst
+++ b/documentation/ref-manual/variables.rst
@@ -354,6 +354,9 @@ system and gives an overview of their function and contents.
    :term:`BB_BASEHASH_IGNORE_VARS`
       See :term:`bitbake:BB_BASEHASH_IGNORE_VARS` in the BitBake manual.
 
+   :term:`BB_CACHEDIR`
+      See :term:`bitbake:BB_CACHEDIR` in the BitBake manual.
+
    :term:`BB_CHECK_SSL_CERTS`
       See :term:`bitbake:BB_CHECK_SSL_CERTS` in the BitBake manual.