[PATCH v2] Documentation/sphinx: Fix Directive import error

[Takashi Iwai]

The sphinx.util.compat for Directive stuff was deprecated in the
recent Sphinx version, and now we get a build error.

Let's import from the new place, docutils.parsers.rst, while keeping
the old sphinx.util.compat as fallback.

Bugzilla: https://bugzilla.opensuse.org/show_bug.cgi?id=1083694
Signed-off-by: Takashi Iwai <tiwai@xxxxxxx>
---
v1->v2: Change the fallback order as Matthew suggested, the new one at first

 Documentation/sphinx/kerneldoc.py | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/Documentation/sphinx/kerneldoc.py b/Documentation/sphinx/kerneldoc.py
index 39aa9e8697cc..34396976eb0a 100644
--- a/Documentation/sphinx/kerneldoc.py
+++ b/Documentation/sphinx/kerneldoc.py
@@ -37,7 +37,10 @@ import glob
 from docutils import nodes, statemachine
 from docutils.statemachine import ViewList
 from docutils.parsers.rst import directives
-from sphinx.util.compat import Directive
+try:
+    from docutils.parsers.rst import directives, Directive
+except ImportError:
+    from sphinx.util.compat import Directive
 from sphinx.ext.autodoc import AutodocReporter
 
 __version__  = '1.0'
-- 
2.16.2