libbpf: 0.1.1 -> 0.4.0

pkgs/os-specific/linux/libbpf/default.nix

···
 
 stdenv.mkDerivation rec {
   pname = "libbpf";
-  version = "0.1.1";
+  version = "0.4.0";
 
   src = fetchFromGitHub {
     owner  = "libbpf";
     repo   = "libbpf";
     rev    = "v${version}";
-    sha256 = "0ilnnm4q22f8fagwp8kb37licy4ks861i2iqh2djsypqhnxvx3fv";
+    sha256 = "1by5w7g3i2fc10bi6f0j8jqi2nq0x8r973j2qx7qlfryjxr7b2v3";
   };
-
-  patches = [
-    (fetchpatch { # included upstream for > 0.1.0
-      name = "link-zlib.patch";
-      url = "https://github.com/libbpf/libbpf/commit/8b14cb43ff837.diff";
-      sha256 = "17mvjrs7s727drz013a8qlyj0345ldi2kph6pazcmxv6kl1qrz2z";
-    })
-  ];
-  patchFlags = "-p2";
-  # https://github.com/libbpf/libbpf/pull/201#issuecomment-689174740
-  postPatch = ''
-    substituteInPlace ../scripts/check-reallocarray.sh \
-      --replace 'mktemp /tmp/' 'mktemp ' \
-      --replace '/bin/rm' 'rm'
-  '';
 
   nativeBuildInputs = [ pkg-config ];
   buildInputs = [ libelf zlib ];