package/python-mako: add optional runtime dependency on python-babel

Some extensions of python-mako use python-babel, if they are used,
python-babel must be added as a runtime dependency.

Signed-off-by: Romain Naour <romain.naour@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
(cherry picked from commit 411a3deb1a4850f4eeff3faebdb87b8ef544d650)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/python-mako/Config.in

@@ -17,4 +17,11 @@ config BR2_PACKAGE_PYTHON_MAKO_EXT_PYGMENTPLUGIN
 	  Provide python-pygments support for
 	  mako.ext.pygmentplugin
 
+config BR2_PACKAGE_PYTHON_MAKO_EXT_BABELPLUGIN
+	bool "mako extension babelplugin"
+	select BR2_PACKAGE_PYTHON_BABEL # runtime
+	help
+	  Provide python-babel support for
+	  mako.ext.babelplugin
+
 endif