doc: Makefile: if sphinx is not found, run a check script
Right now, if the building system doesn't find Sphinx, it
bails out, without providing any instructions about what
should be done.
Instead, run a script, providing some guidance about the
steps needed for Sphinx build to work.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
diff --git a/Documentation/Makefile b/Documentation/Makefile
index d75c00e..85f7856 100644
--- a/Documentation/Makefile
+++ b/Documentation/Makefile
@@ -22,6 +22,8 @@
.DEFAULT:
$(warning The '$(SPHINXBUILD)' command was not found. Make sure you have Sphinx installed and in PATH, or set the SPHINXBUILD make variable to point to the full path of the '$(SPHINXBUILD)' executable.)
+ @echo
+ @./scripts/sphinx-pre-install
@echo " SKIP Sphinx $@ target."
else # HAVE_SPHINX
