Update nix build to reflect recent changes on master

Author: tgunnoe

flake.nix

@@ -43,8 +43,84 @@
 
         isLinux = pkgs.stdenv.isLinux;
         isDarwin = pkgs.stdenv.isDarwin;
+        customRustPlatform = pkgs.makeRustPlatform {
+          cargo = rustToolchain;
+          rustc = rustToolchain;
+        };
       in
       {
+        packages.partner-chains = customRustPlatform.buildRustPackage rec {
+        pname = "partner-chains";
+        version = "1.7";
+        src = ./.;
+        # preBuild = ''
+        #   export SUBSTRATE_CLI_GIT_COMMIT_HASH=${dirtyShortRev or shortRev}
+        # '';
+
+        useFetchCargoVendor = true;
+        cargoHash = "sha256-evSP89WBwPl2jL43/ddZWyt+CgxRR9Xst1mGn8bKKgo=";
+        buildType = "production";
+        #buildAndTestSubdir = dir;
+        doCheck = false;
+        patches = [];
+
+        nativeBuildInputs = [
+          pkgs.pkg-config
+          pkgs.protobuf
+
+          pkgs.llvmPackages.lld
+          customRustPlatform.bindgenHook
+        ];
+        buildInputs = [
+          pkgs.rocksdb
+          pkgs.openssl
+          pkgs.libclang.lib
+        ] ++ pkgs.lib.optionals pkgs.stdenv.hostPlatform.isLinux [
+          pkgs.rust-jemalloc-sys-unprefixed
+        ] ++ pkgs.lib.optionals pkgs.stdenv.hostPlatform.isDarwin [
+          pkgs.darwin.apple_sdk.frameworks.SystemConfiguration
+          pkgs.darwin.apple_sdk.frameworks.Security
+        ];
+
+        postFixup = pkgs.lib.optionalString pkgs.stdenv.hostPlatform.isLinux ''
+          patchelf --set-rpath "${pkgs.rocksdb}/lib:${pkgs.stdenv.cc.cc.lib}/lib" $out/bin/partner-chains-demo-node
+        '';
+
+        # Force skip support check in CC crate
+        #CRATE_CC_NO_DEFAULTS = "1";
+
+        # Platform-specific features
+        RUSTFLAGS = pkgs.lib.optionalString pkgs.stdenv.hostPlatform.isDarwin
+          "--cfg unwinding_backport --cfg unwinding_apple";
+
+        # Existing environment variables
+        CC_ENABLE_DEBUG_OUTPUT = "1";
+        #CARGO_TARGET_WASM32_UNKNOWN_UNKNOWN_LINKER = "${pkgs.llvmPackages.lld}/bin/lld";
+        #RUST_SRC_PATH = "${customRustPlatform.rustLibSrc}";
+        LIBCLANG_PATH = "${pkgs.libclang.lib}/lib";
+        LD_LIBRARY_PATH = pkgs.lib.makeLibraryPath [
+          rustToolchain
+          pkgs.stdenv.cc.cc
+          pkgs.libz
+          pkgs.clang
+        ];
+
+        # Platform-specific flags
+        CFLAGS =
+          if pkgs.lib.hasSuffix "linux" system then
+            "-DJEMALLOC_STRERROR_R_RETURNS_CHAR_WITH_GNU_SOURCE"
+          else
+            "";
+
+        PROTOC = "${pkgs.protobuf}/bin/protoc";
+        ROCKSDB_LIB_DIR = "${pkgs.rocksdb}/lib/";
+        OPENSSL_NO_VENDOR = 1;
+        OPENSSL_DIR = "${pkgs.openssl.dev}";
+        OPENSSL_INCLUDE_DIR = "${pkgs.openssl.dev}/include";
+        OPENSSL_LIB_DIR = "${pkgs.openssl.out}/lib";
+        BINDGEN_EXTRA_CLANG_ARGS = "-I${pkgs.stdenv.cc.cc}/include -std=c++17";
+
+      };
         devShells.default = pkgs.mkShell {
           packages =
             with pkgs;