kbuild: Run documentation build in virtualenv

To avoid depending on the sphinx version installed on the host, run the
documentation build in a python virtual environment.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

1 files changed, 10 insertions, 0 deletions

diff --git a/kbuild.sh b/kbuild.sh
index 7aae1ed..d5bd3c6 100755
--- a/kbuild.sh
+++ b/kbuild.sh
@@ -178,7 +178,17 @@ fi
 #
 
 if [[ $do_compile_doc == 1 ]] ; then
+	(
+	if [[ ! -f $PWD/output/doc/bin/activate ]] ; then
+		virtualenv $PWD/output/doc
+		source $PWD/output/doc/bin/activate
+		pip install -r Documentation/sphinx/requirements.txt
+	else
+		source $PWD/output/doc/bin/activate
+	fi
+
 	$pmake DOCBOOKS='' htmldocs
+	)
 fi
 
 #