scons_4_5_2: detach from sconsPackages

pkgs/development/tools/build-managers/scons/4.5.2.nix

···
+{ lib, fetchurl, python3 }:
+
+let
+  pname = "scons";
+  version = "4.5.2";
+  src = fetchurl {
+    url = "mirror://sourceforge/project/scons/scons/${version}/SCons-${version}.tar.gz";
+    hash = "sha256-ziaqyV01CnmkGSGWsL6sPLJPTMq84BI+so0zcPV28HI=";
+  };
+in
+python3.pkgs.buildPythonApplication {
+  inherit pname version src;
+
+  patches = [
+    ./env.patch
+  ];
+
+  postPatch = ''
+    substituteInPlace setup.cfg \
+      --replace "build/dist" "dist" \
+      --replace "build/doc/man/" ""
+  '';
+
+  postInstall = ''
+    mkdir -p "$out/share/man/man1"
+    mv "$out/"*.1 "$out/share/man/man1/"
+  '';
+
+  setupHook = ./setup-hook.sh;
+
+  # The release tarballs don't contain any tests (runtest.py and test/*):
+  doCheck = false;
+
+  passthru = {
+    # expose the used python version so tools using this (and extensing scos
+    # with other python modules) can use the exact same python version.
+    inherit python3;
+    python = python3;
+  };
+
+  meta = {
+    description = "An improved, cross-platform substitute for Make";
+    longDescription = ''
+      SCons is an Open Source software construction tool. Think of SCons as an
+      improved, cross-platform substitute for the classic Make utility with
+      integrated functionality similar to autoconf/automake and compiler caches
+      such as ccache. In short, SCons is an easier, more reliable and faster way
+      to build software.
+    '';
+    homepage = "https://scons.org/";
+    license = lib.licenses.mit;
+    maintainers = with lib.maintainers; [ AndersonTorres ];
+  };
+}

pkgs/development/tools/build-managers/scons/default.nix

···
     python = python3;
   };
 in {
-  scons_latest = mkScons {
-    version = "4.5.2";
-    sha256 = "sha256-ziaqyV01CnmkGSGWsL6sPLJPTMq84BI+so0zcPV28HI=";
-  };
 }

pkgs/top-level/all-packages.nix

···
 
   sca2d = callPackage ../development/tools/sca2d {  };
 
+  scons = scons_4_5_2;
   scons_3_1_2 = callPackage ../development/tools/build-managers/scons/3.1.2.nix { };
 
   scons_4_1_0 = callPackage ../development/tools/build-managers/scons/4.1.0.nix { };
 
-  sconsPackages = dontRecurseIntoAttrs (callPackage ../development/tools/build-managers/scons { });
-  scons = sconsPackages.scons_latest;
+  scons_4_5_2 = callPackage ../development/tools/build-managers/scons/4.5.2.nix { };
 
+  sconsPackages = dontRecurseIntoAttrs (callPackage ../development/tools/build-managers/scons { });
   mill = callPackage ../development/tools/build-managers/mill { };
 
   sbt = callPackage ../development/tools/build-managers/sbt { };