From 8ab16e40be339f7a25428ff4b99543eb65ac778a Mon Sep 17 00:00:00 2001
From: Sergei Trofimovich <slyich@gmail.com>
Date: Tue, 16 Aug 2022 17:33:13 +0100
Subject: [PATCH] pkgsCross.ppc64.linux: flatten makeFlags

Before the cgange:

    nix-repl> pkgsCross.ppc64.linux.makeFlags
    [ "O=$(buildRoot)"
      "CC=/06pbgv2957wl3wcpd2gljml719lw123njq9dhj7h6n2pv4nwgwhl/bin/powerpc64-unknown-linux-gnu-cc"
      "HOSTCC=/0calwri0wxl5mbjl5q80r1hm9hchyk8a7hhayk6cdfrxgbfbia3n/bin/cc"
      "ARCH=powerpc"
      [ ... ] ]

After the change:

    nix-repl> pkgsCross.ppc64.linux.makeFlags
    [ "O=$(buildRoot)"
      "CC=/06pbgv2957wl3wcpd2gljml719lw123njq9dhj7h6n2pv4nwgwhl/bin/powerpc64-unknown-linux-gnu-cc"
      "HOSTCC=/0calwri0wxl5mbjl5q80r1hm9hchyk8a7hhayk6cdfrxgbfbia3n/bin/cc"
      "ARCH=powerpc"
      "CROSS_COMPILE=powerpc64-unknown-linux-gnu-" ]
---
 pkgs/os-specific/linux/kernel/manual-config.nix | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pkgs/os-specific/linux/kernel/manual-config.nix b/pkgs/os-specific/linux/kernel/manual-config.nix
index 377f7fc1c077..7e734a4f13ab 100644
--- a/pkgs/os-specific/linux/kernel/manual-config.nix
+++ b/pkgs/os-specific/linux/kernel/manual-config.nix
@@ -334,7 +334,7 @@ stdenv.mkDerivation ((drvAttrs config stdenv.hostPlatform.linux-kernel kernelPat
     "CC=${stdenv.cc}/bin/${stdenv.cc.targetPrefix}cc"
     "HOSTCC=${buildPackages.stdenv.cc}/bin/${buildPackages.stdenv.cc.targetPrefix}cc"
     "ARCH=${stdenv.hostPlatform.linuxArch}"
-  ] ++ lib.optional (stdenv.hostPlatform != stdenv.buildPlatform) [
+  ] ++ lib.optionals (stdenv.hostPlatform != stdenv.buildPlatform) [
     "CROSS_COMPILE=${stdenv.cc.targetPrefix}"
   ] ++ (stdenv.hostPlatform.linux-kernel.makeFlags or [])
     ++ extraMakeFlags;