attr: enable strictDeps, enable structuredAttrs, use finalAttrs (#548763)

pkgs/development/libraries/attr/default.nix

@@ -10,12 +10,12 @@
 # cgit) that are needed here should be included directly in Nixpkgs as
 # files.
 
-stdenv.mkDerivation rec {
+stdenv.mkDerivation (finalAttrs: {
   pname = "attr";
   version = "2.6.0";
 
   src = fetchurl {
-    url = "mirror://savannah/attr/attr-${version}.tar.gz";
+    url = "mirror://savannah/attr/attr-${finalAttrs.version}.tar.gz";
     hash = "sha256-1C+jdFExgLtIyxGkZpb0iCQOUST/HmrYiwq/9waYVhI=";
   };
 
@@ -29,6 +29,8 @@ stdenv.mkDerivation rec {
 
   nativeBuildInputs = [ gettext ];
 
+  strictDeps = true;
+
   postPatch = ''
     for script in install-sh include/install-sh; do
       patchShebangs $script
@@ -38,6 +40,8 @@ stdenv.mkDerivation rec {
   # See nixos/tests/attr.nix
   doCheck = false;
 
+  __structuredAttrs = true;
+
   meta = {
     homepage = "https://savannah.nongnu.org/projects/attr/";
     description = "Library and tools for manipulating extended attributes";
@@ -45,6 +49,6 @@ stdenv.mkDerivation rec {
     badPlatforms = lib.platforms.microblaze;
     license = lib.licenses.gpl2Plus;
     teams = [ lib.teams.security-review ];
-    identifiers.cpeParts = lib.meta.cpeFullVersionWithVendor "attr_project" version;
+    identifiers.cpeParts = lib.meta.cpeFullVersionWithVendor "attr_project" finalAttrs.version;
   };
-}
+})