From 0d7e5019d6fda7c1d2f70c6291f8b422d83da6c9 Mon Sep 17 00:00:00 2001
From: Jan Tojnar <jtojnar@gmail.com>
Date: Wed, 15 Dec 2021 21:13:12 +0100
Subject: [PATCH] build: Drop DocBook schema validation

It was not actually used because we did not pass it the manual.

And if we fix it by replacing the Bash `$combined` variable by a Nix one,
it will fail because we only have RelaxNG schema for Docbook 5.0,
which unlike later versions is too limited (e.g. does not allow
emphasis element within filename element).

- https://tdg.docbook.org/tdg/5.0/filename.html
- https://tdg.docbook.org/tdg/5.2/filename.html
---
 default.nix | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/default.nix b/default.nix
index 19eb6aa..559959a 100644
--- a/default.nix
+++ b/default.nix
@@ -60,11 +60,9 @@ in pkgs.stdenv.mkDerivation {
   name = "nix-pills";
 
   src = sources;
-  buildInputs = with pkgs; [ jing libxslt ];
+  buildInputs = with pkgs; [ libxslt ];
 
   installPhase = ''
-    jing ${pkgs.docbook5}/xml/rng/docbook/docbook.rng $combined
-
     # Generate the HTML manual.
     dst=$out/share/doc/nix-pills
     mkdir -p $dst