From a128e443c4cfaef1d2f13b0d91d3cc2d86804953 Mon Sep 17 00:00:00 2001
From: Jonathan Ringer <jonringer117@gmail.com>
Date: Mon, 28 Jun 2021 11:19:52 -0700
Subject: [PATCH] linuxPackages_5_13.perf: fix build

Also add optional libcap and zstd
---
 pkgs/os-specific/linux/kernel/perf.nix | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/pkgs/os-specific/linux/kernel/perf.nix b/pkgs/os-specific/linux/kernel/perf.nix
index ae27839c8cd3..b58bca352e63 100644
--- a/pkgs/os-specific/linux/kernel/perf.nix
+++ b/pkgs/os-specific/linux/kernel/perf.nix
@@ -1,12 +1,14 @@
 { lib, stdenv, kernel, elfutils, python2, python3, perl, newt, slang, asciidoc, xmlto, makeWrapper
 , docbook_xsl, docbook_xml_dtd_45, libxslt, flex, bison, pkg-config, libunwind, binutils
 , libiberty, audit, libbfd, libopcodes, openssl, systemtap, numactl
-, zlib, withGtk ? false, gtk2 ? null
+, zlib
+, withGtk ? false, gtk2
+, withZstd ? true, zstd
+, withLibcap ? true, libcap
 }:
 
 with lib;
 
-assert withGtk -> gtk2 != null;
 assert versionAtLeast kernel.version "3.12";
 
 stdenv.mkDerivation {
@@ -42,7 +44,9 @@ stdenv.mkDerivation {
     elfutils newt slang libunwind libbfd zlib openssl systemtap.stapBuild numactl
     libopcodes python3 perl
   ] ++ lib.optional withGtk gtk2
-    ++ (if (versionAtLeast kernel.version "4.19") then [ python3 ] else [ python2 ]);
+    ++ (if (versionAtLeast kernel.version "4.19") then [ python3 ] else [ python2 ])
+    ++ lib.optional withZstd zstd
+    ++ lib.optional withLibcap libcap;
 
   # Note: we don't add elfutils to buildInputs, since it provides a
   # bad `ld' and other stuff.
@@ -55,7 +59,7 @@ stdenv.mkDerivation {
   ];
 
   postPatch = ''
-    patchShebangs scripts/bpf_helpers_doc.py
+    patchShebangs scripts
   '';
 
   doCheck = false; # requires "sparse"