From a6fa6abb15c2f55f0daf08ac2030cdc15bbc348d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Sandro=20J=C3=A4ckel?= <sandro.jaeckel@gmail.com>
Date: Sun, 18 Dec 2022 14:19:36 +0100
Subject: [PATCH] nixos/man-db: use nativeBuildInputs

---
 nixos/modules/misc/man-db.nix | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/nixos/modules/misc/man-db.nix b/nixos/modules/misc/man-db.nix
index df903259fa42..299b11d1fcef 100644
--- a/nixos/modules/misc/man-db.nix
+++ b/nixos/modules/misc/man-db.nix
@@ -52,13 +52,11 @@ in
     environment.systemPackages = [ cfg.package ];
     environment.etc."man_db.conf".text =
       let
-        mandbForBuild = if pkgs.stdenv.hostPlatform == pkgs.stdenv.buildPlatform then
-                          cfg.package
-                        else
-                          pkgs.buildPackages.man-db;
-        manualCache = pkgs.runCommand "man-cache" { } ''
+        manualCache = pkgs.runCommand "man-cache" {
+          nativeBuildInputs = [ cfg.package ];
+        } ''
           echo "MANDB_MAP ${cfg.manualPages}/share/man $out" > man.conf
-          ${mandbForBuild}/bin/mandb -C man.conf -psc >/dev/null 2>&1
+          mandb -C man.conf -psc >/dev/null 2>&1
         '';
       in
       ''