Gentoo need some USE for GraphViz and ImageMagick to have
the features required by kfigure.py.

Output that when providing instructions for Gentoo.

Signed-off-by: Mauro Carvalho Chehab <mche...@s-opensource.com>
---
 scripts/sphinx-pre-install | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/scripts/sphinx-pre-install b/scripts/sphinx-pre-install
index fc9891ce5c85..2d18064d57b4 100755
--- a/scripts/sphinx-pre-install
+++ b/scripts/sphinx-pre-install
@@ -393,7 +393,12 @@ sub give_gentoo_hints()
        check_missing(\%map);
 
        return if (!$need && !$optional);
-       printf("You should run:\n\n\tsudo emerge --ask $install\n");
+
+       printf("You should run:\n\n");
+       printf("\tsudo su -c 'echo \"media-gfx/imagemagick svg png\" > 
/etc/portage/package.use/imagemagick'\n");
+       printf("\tsudo su -c 'echo \"media-gfx/graphviz cairo pdf\" > 
/etc/portage/package.use/graphviz'\n");
+       printf("\tsudo emerge --ask $install\n");
+
 }
 
 sub check_distros()
-- 
2.13.3

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