Avoid building a llvm based bootstrap step

default.nix

@@ -1,34 +1,12 @@
-{
-    nixPkgsVersion ? "f606c027310f06df398875960e04038db1f0129f", # release 23.0 # "3e52e76b70d5508f3cec70b882a29199f4d1ee85",  # unstable
-    currentSystem
-}:
 let
-
-    getNixPkgs = args: import (builtins.fetchGit {
-        name = "nixpkg-serene-${nixPkgsVersion}";
-        url = "https://github.com/nixos/nixpkgs/";
-        # `git ls-remote https://github.com/nixos/nixpkgs nixos-unstable`
-        ref = "refs/heads/release-23.05"; # refs/heads/nixos-unstable
-        rev = nixPkgsVersion;
-    }) args;
-
-    nixpkgs = getNixPkgs { system = currentSystem; };
-    system = import ./system.nix {
-        pkgs = nixpkgs;
-        inherit currentSystem;
+    tmpPkgs = import ../nixpkgs {};
+    pkgs = import ../nixpkgs {
+        crossSystem = tmpPkgs.stdenv.hostPlatform // {
+            config = "x86_64-unknown-linux-musl";
+            useLLVM = true;
+            linker = "lld";
+            isMusl = true;
+            isStatic = true;
+      };
     };
-    # staticMuslPkgs = getNixPkgs system;
-    # llvm = staticMuslPkgs.llvmPackages_16.override { stdenv = staticMuslPkgs.llvmPackages_16.libcxxStdenv; };
-
-    replaceStdenv = { pkgs }:
-        let
-            llvm = pkgs.llvmPackages_16.override { stdenv = pkgs.llvmPackages_16.libcxxStdenv; };
-        in
-          llvm.libcxxStdenv;
-
-    createPkgSet = _:
-        getNixPkgs (system // { config = { inherit replaceStdenv; }; });
-
-in {
-    inherit createPkgSet;
-}
+in { inherit pkgs tmpPkgs; }

flake.lock

@@ -0,0 +1,39 @@
+{
+  "nodes": {
+    "h": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1,
+        "narHash": "sha256-FghzEGAvDzfNDjS4QPKu635KMnCbPAbMLoZBJDVrj9g=",
+        "path": "/nix/store/1qdpdwjgrz119dm0nr7fq4wiwiks8br7-source/test-drv.nix",
+        "type": "path"
+      },
+      "original": {
+        "path": "/nix/store/1qdpdwjgrz119dm0nr7fq4wiwiks8br7-source/test-drv.nix",
+        "type": "path"
+      }
+    },
+    "nixpkgs": {
+      "locked": {
+        "dirtyRev": "68ba5fd2ed8be749cf1865ed9a71667dfda944a7-dirty",
+        "dirtyShortRev": "68ba5fd2ed8b-dirty",
+        "lastModified": 1697211831,
+        "narHash": "sha256-baRp/RgDaU3rVlybOpTPzo/+FdsfTyKp3iv4igguHkY=",
+        "type": "git",
+        "url": "file:///home/lxsameer/src/nixpkgs"
+      },
+      "original": {
+        "type": "git",
+        "url": "file:///home/lxsameer/src/nixpkgs"
+      }
+    },
+    "root": {
+      "inputs": {
+        "h": "h",
+        "nixpkgs": "nixpkgs"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}

flake.nix

@@ -1,22 +1,19 @@
 {
-  description = "Serene Toolchain";
+    description = "Serene Toolchain";
 
 
-  outputs = inputs:
-      let
-          toolchain = import /home/lxsameer/src/toolchain/test-stdenv.nix {};
-          nixpkgs = import /home/lxsameer/src/nixpkgs {};
-          myenv = toolchain.createPkgSet;
-      in
-        {
-            testClang = myenv.stdenv.mkDerivation {
-                name = "testClang";
-                unpackPhase = "echo AA $CC; echo '--'; env; NIX_DEBUG=1 $CC -v; echo '--'; exit 1";
-            };
-            testGcc = nixpkgs.stdenv.mkDerivation {
-                name = "testGcc";
-                unpackPhase = "NIX_DEBUG=1 $CC --version; echo $CC; $CC -v; exit 1";
-            };
-            inherit myenv;
+    inputs.nixpkgs.url = "/home/lxsameer/src/nixpkgs/";
+    inputs.h = {
+        flake = false;
+        url = "./test-drv.nix";
+    };
+
+    outputs = {self, nixpkgs, h}:
+        let
+            h' = import h.outPath;
+            hello = h'.hello;
+        in {
+            packages.x86_64-linux.h = h;
+            packages.x86_64-linux.hello = hello;
         };
 }

test-drv.nix

@@ -0,0 +1,50 @@
+# let
+#     toolchain = import /home/lxsameer/src/toolchain/test-stdenv.nix {};
+#     nixpkgs = import /home/lxsameer/src/nixpkgs {};
+#     myenv = toolchain.createPkgSet;
+# in myenv.ninja #.stdenv
+# nix build --impure --expr 'with import ./. { crossSystem = (import ./lib).systems.examples.musl64 // { useLLVM = true; }; }; bash'
+
+let
+    tmpPkgs = import /home/lxsameer/src/nixpkgs {};
+    # pkgs = import /home/lxsameer/src/nixpkgs {
+    #     crossSystem = tmpPkgs.stdenv.hostPlatform // {
+    #         config = "x86_64-unknown-linux-musl";
+    #         useLLVM = true;
+    #         linker = "lld";
+    #         isMusl = true;
+    #         isStatic = true;
+    #   };
+    # };
+
+    static = tmpPkgs.pkgsMusl.pkgsStatic;
+    #stdenv = static.llvmPackages_16.libcxxStdenv;
+
+
+
+    monorepoSrc = tmpPkgs.fetchgit {
+        url = "https://devheroes.codes/Serene/llvm-project.git";
+        rev = "b2c0361bcc08afdf466a605a23924bcd64fa2b86";
+        hash = "sha256-wUKHwWYYlKa0v5zEJXxndleYtK7wzJKi0vqr3lNkGMI=";
+    };
+
+    overrideSrc = { inherit monorepoSrc; };
+    buildLlvm = static.llvmPackages_16.override overrideSrc;
+
+    targetLlvm = static.llvmPackages_16.override overrideSrc;
+    # pkgsStaticLlvm.
+    llvm = static.llvmPackages_16.override (prev: overrideSrc // {
+
+        buildLlvmTools = buildLlvm.tools;
+        targetLlvmLibraries = targetLlvm.libraries or {};
+        targetLlvm = targetLlvm.llvm or {};
+        officialRelease = null;
+        gitRelease = {
+            version = "16.0.6";
+            rev = "b2c0361bcc08afdf466a605a23924bcd64fa2b86";
+            rev-version = "17-disable-shared-1";
+        };
+    });
+
+    stdenv = llvm.libcxxStdenv;
+in tmpPkgs.hello.override { inherit stdenv; }