ref-manual: Added new variable entry for BULIDDIR.

Ross Burton suggested this might be good to have so I added
it.  The changes include the entry itself and a link to it
from the beginning of the "Classes" chapter where it is
talked about.

Reported-by: Ross Burton <ross.burton@intel.com>
(From yocto-docs rev: 5b0263fa5e01706ccb815db51b8f1b7f86275721)

Signed-off-by: Scott Rifenbark <scott.m.rifenbark@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 14 insertions, 0 deletions

diff --git a/documentation/ref-manual/ref-variables.xml b/documentation/ref-manual/ref-variables.xml
index 204046fc14..c433110f2b 100644
--- a/documentation/ref-manual/ref-variables.xml
+++ b/documentation/ref-manual/ref-variables.xml
@@ -556,6 +556,20 @@ Core layer for images cannot be removed
             </glossdef>
         </glossentry>
 
+        <glossentry id='var-BUILDDIR'><glossterm>BUILDDIR</glossterm>
+            <glossdef>
+                <para>Points to the location of the
+                    <ulink url='&YOCTO_DOCS_DEV_URL;#build-directory'>Build Directory</ulink>.
+                    You can define this directory indirectly through the
+                    <link linkend='structure-core-script'><filename>&OE_INIT_FILE;</filename></link>
+                    script by passing in a Build Directory path when you run the
+                    script.
+                    If you run the script and do not pass a Build Directory
+                    path, the <filename>BUILDDIR</filename> defaults to
+                    <filename>build</filename> in the current directory.
+                </para>
+            </glossdef>
+        </glossentry>
     </glossdiv>
 
     <glossdiv id='var-glossary-c'><title>C</title>