From 00ff258edba7540fd8188ae31226de6aefda578e Mon Sep 17 00:00:00 2001
From: Artturin <Artturin@artturin.com>
Date: Tue, 2 May 2023 15:55:59 +0300
Subject: [PATCH] libnvme: fix manpage reproducibility

---
 pkgs/os-specific/linux/libnvme/default.nix | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/pkgs/os-specific/linux/libnvme/default.nix b/pkgs/os-specific/linux/libnvme/default.nix
index 5f1960f4e53..4ed838051f6 100644
--- a/pkgs/os-specific/linux/libnvme/default.nix
+++ b/pkgs/os-specific/linux/libnvme/default.nix
@@ -54,6 +54,10 @@ stdenv.mkDerivation rec {
     "-Ddocs-build=true"
   ];
 
+  preConfigure = ''
+    export KBUILD_BUILD_TIMESTAMP="$(date -u -d @$SOURCE_DATE_EPOCH)"
+  '';
+
   doCheck = true;
 
   meta = with lib; {