[PATCH] scripts: sphinx-pre-install: Add pyyaml hint to other distros

[Thorsten Blum <thorsten.blum@toblux.com>]

Extend commit 84b4cc8189f2 ("docs: scripts: sphinx-pre-install: Fix
building docs with pyyaml package") and add pyyaml as an optional
package to Mageia, ArchLinux, and Gentoo.

The Python module pyyaml is required to build the docs, but it is only
listed in Documentation/sphinx/requirements.txt and is therefore missing
when Sphinx is installed as a package and not via pip/pypi.

Signed-off-by: Thorsten Blum <thorsten.blum@toblux.com>
---
 scripts/sphinx-pre-install | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/scripts/sphinx-pre-install b/scripts/sphinx-pre-install
index 4c781617ffe6..d4f05216ca23 100755
--- a/scripts/sphinx-pre-install
+++ b/scripts/sphinx-pre-install
@@ -514,6 +514,7 @@ sub give_mageia_hints()
 {
 	my %map = (
 		"python-sphinx"		=> "python3-sphinx",
+		"yaml"			=> "python3-yaml",
 		"virtualenv"		=> "python3-virtualenv",
 		"dot"			=> "graphviz",
 		"convert"		=> "ImageMagick",
@@ -557,6 +558,7 @@ sub give_mageia_hints()
 sub give_arch_linux_hints()
 {
 	my %map = (
+		"yaml"			=> "python-yaml",
 		"virtualenv"		=> "python-virtualenv",
 		"dot"			=> "graphviz",
 		"convert"		=> "imagemagick",
@@ -587,6 +589,7 @@ sub give_arch_linux_hints()
 sub give_gentoo_hints()
 {
 	my %map = (
+		"yaml"			=> "dev-python/pyyaml",
 		"virtualenv"		=> "dev-python/virtualenv",
 		"dot"			=> "media-gfx/graphviz",
 		"convert"		=> "media-gfx/imagemagick",
-- 
2.44.0