[oe] [yocto-docs][PATCH] doc: discourage users from looking in directly

[yann.dirson at blade-group.com]

From: Yann Dirson <yann at blade-group.com>

Signed-off-by: Yann Dirson <yann at blade-group.com>
---
 documentation/ref-manual/ref-classes.xml | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/documentation/ref-manual/ref-classes.xml b/documentation/ref-manual/ref-classes.xml
index 5cd25e8c29..0f8c89703b 100644
--- a/documentation/ref-manual/ref-classes.xml
+++ b/documentation/ref-manual/ref-classes.xml
@@ -3236,6 +3236,14 @@ This check was removed for YP 2.3 release
                     <link linkend='var-SYSROOT_PREPROCESS_FUNCS'><filename>SYSROOT_PREPROCESS_FUNCS</filename></link>
                     variable.
                 </note>
+                <note>
+                    The paths under
+                    <filename>${SYSROOT_DESTDIR}</filename> have (for
+                    historical reasons) a complicated structure, you
+                    should instead look in <link
+                    linkend='structure-build-tmp-sysroots-components'><filename>tmp/sysroots-components/</filename>
+                    when debugging a recipe.</link>
+                </note>
                 </para>
 
                 <para>
-- 
2.20.1