rust-bindgen: fix for structuredAttrs (#473943)

pkgs/development/tools/rust/bindgen/default.nix

@@ -10,11 +10,8 @@ let
   self =
     runCommand "rust-bindgen-${rust-bindgen-unwrapped.version}"
       {
-        #for substituteAll
-        inherit bash;
         pname = "rust-bindgen";
         inherit (rust-bindgen-unwrapped) version;
-        unwrapped = rust-bindgen-unwrapped;
         meta = rust-bindgen-unwrapped.meta // {
           longDescription = rust-bindgen-unwrapped.meta.longDescription + ''
             This version of bindgen is wrapped with the required compiler flags
@@ -46,9 +43,13 @@ let
       # if you modify the logic to find the right clang flags, also modify rustPlatform.bindgenHook
       ''
         mkdir -p $out/bin
-        export cincludes="$(< ${clang}/nix-support/cc-cflags) $(< ${clang}/nix-support/libc-cflags)"
-        export cxxincludes="$(< ${clang}/nix-support/libcxx-cxxflags)"
-        substituteAll ${./wrapper.sh} $out/bin/bindgen
+        cincludes="$(< ${clang}/nix-support/cc-cflags) $(< ${clang}/nix-support/libc-cflags)"
+        cxxincludes="$(< ${clang}/nix-support/libcxx-cxxflags)"
+        substitute ${./wrapper.sh} $out/bin/bindgen \
+          --replace-fail "@bash@" "${bash}" \
+          --replace-fail "@cxxincludes@" "$cxxincludes" \
+          --replace-fail "@cincludes@" "$cincludes" \
+          --replace-fail "@unwrapped@" "${rust-bindgen-unwrapped}"
         chmod +x $out/bin/bindgen
       '';
 in