From e25f5c1e8692b344c771019879a875df034652a4 Mon Sep 17 00:00:00 2001
From: Samuel Dionne-Riel <samuel@dionne-riel.com>
Date: Fri, 8 Mar 2019 19:33:28 -0500
Subject: [PATCH] linux: Makes the -dev output reproducible

---
 pkgs/os-specific/linux/kernel/manual-config.nix | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/pkgs/os-specific/linux/kernel/manual-config.nix b/pkgs/os-specific/linux/kernel/manual-config.nix
index 1512f47ade4..6210523d62a 100644
--- a/pkgs/os-specific/linux/kernel/manual-config.nix
+++ b/pkgs/os-specific/linux/kernel/manual-config.nix
@@ -198,6 +198,10 @@ let
         cp $buildRoot/{.config,Module.symvers} $dev/lib/modules/${modDirVersion}/build
         make modules_prepare $makeFlags "''${makeFlagsArray[@]}" O=$dev/lib/modules/${modDirVersion}/build
 
+        # For reproducibility, removes accidental leftovers from a `cc1` call
+        # from a `try-run` call from the Makefile
+        rm -f $dev/lib/modules/${modDirVersion}/build/.[0-9]*.d
+
         # Keep some extra files on some arches (powerpc, aarch64)
         for f in arch/powerpc/lib/crtsavres.o arch/arm64/kernel/ftrace-mod.o; do
           if [ -f "$buildRoot/$f" ]; then