From daa77caf9bf660c52858772d8aa4cf9ab08ffe92 Mon Sep 17 00:00:00 2001
From: Dmitry Kalinkin <dmitry.kalinkin@gmail.com>
Date: Sun, 19 Jun 2022 17:18:01 -0400
Subject: [PATCH] cc-wrapper: disable response files for ccache

The problem is that the ccache wrapper does not work with response
files (it seems like the fd doesn't survive after exec in the
makeWrapper wrapper).
---
 pkgs/build-support/cc-wrapper/default.nix      | 4 ++--
 pkgs/development/tools/misc/ccache/default.nix | 1 +
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/pkgs/build-support/cc-wrapper/default.nix b/pkgs/build-support/cc-wrapper/default.nix
index 35d714f9b41e110..b011322aa3dd022 100644
--- a/pkgs/build-support/cc-wrapper/default.nix
+++ b/pkgs/build-support/cc-wrapper/default.nix
@@ -15,7 +15,7 @@
 , propagateDoc ? cc != null && cc ? man
 , extraTools ? [], extraPackages ? [], extraBuildCommands ? ""
 , nixSupport ? {}
-, isGNU ? false, isClang ? cc.isClang or false, gnugrep ? null
+, isGNU ? false, isClang ? cc.isClang or false, isCcache ? cc.isCcache or false, gnugrep ? null
 , buildPackages ? {}
 , libcxx ? null
 }:
@@ -178,7 +178,7 @@ stdenv.mkDerivation {
         local dst="$1"
         local wrapper="$2"
         export prog="$3"
-        export use_response_file_by_default=${if isClang then "1" else "0"}
+        export use_response_file_by_default=${if isClang && !isCcache then "1" else "0"}
         substituteAll "$wrapper" "$out/bin/$dst"
         chmod +x "$out/bin/$dst"
       }
diff --git a/pkgs/development/tools/misc/ccache/default.nix b/pkgs/development/tools/misc/ccache/default.nix
index 98ae2d42ba4059e..22345023c366f8f 100644
--- a/pkgs/development/tools/misc/ccache/default.nix
+++ b/pkgs/development/tools/misc/ccache/default.nix
@@ -76,6 +76,7 @@ let ccache = stdenv.mkDerivation rec {
       passthru = {
         isClang = unwrappedCC.isClang or false;
         isGNU = unwrappedCC.isGNU or false;
+        isCcache = true;
       };
       inherit (unwrappedCC) lib;
       nativeBuildInputs = [ makeWrapper ];