--- /dev/null
+diff --git a/src/lib.rs b/src/lib.rs
+index 24fbfac..29a30d4 100644
+--- a/src/lib.rs
++++ b/src/lib.rs
+@@ -20,6 +20,13 @@
+
+ #![warn(missing_docs, missing_debug_implementations, rust_2018_idioms)]
+
++extern crate futures_lite;
++extern crate async_lock;
++extern crate async_task;
++extern crate concurrent_queue;
++extern crate slab;
++extern crate fastrand;
++
+ use std::future::Future;
+ use std::marker::PhantomData;
+ use std::panic::{RefUnwindSafe, UnwindSafe};
--- /dev/null
+# Generated by rust2rpm 23
+%global _rpm_strip_disable 1
+%global debug_package %{nil}
+
+%global crate async-executor
+%global real_crate_name async_executor
+%global rustc_edition 2018
+
+Name: rust-async-executor
+Version: 1.5.0
+Release: 1
+Summary: Async executor
+
+License: Apache-2.0 OR MIT
+URL: https://crates.io/crates/async-executor
+Source: %{crate}-%{version}.tar.gz
+Source1: %{name}.manifest
+Source2: extern.patch
+
+# ==========================================================
+# BuildRequires
+# specifies build-time dependencies for the package
+# ==========================================================
+BuildRequires: rust
+BuildRequires: rust-async-lock
+BuildRequires: rust-async-task
+BuildRequires: rust-concurrent-queue
+BuildRequires: rust-fastrand
+BuildRequires: rust-futures-lite
+BuildRequires: rust-slab
+
+Requires: rust-async-lock
+Requires: rust-async-task
+Requires: rust-concurrent-queue
+Requires: rust-fastrand
+Requires: rust-futures-lite
+Requires: rust-slab
+
+# ==========================================================
+# dev-dependencies
+# ==========================================================
+# BuildRequires: rust-async-channel
+# BuildRequires: rust-async-io
+# BuildRequires: rust-easy-parallel
+# BuildRequires: rust-num_cpus
+# BuildRequires: rust-once_cell
+
+
+%description
+Async executor.
+
+%prep
+%setup -q
+cp %{SOURCE1} .
+%{__patch} -p1 < %{SOURCE2}
+
+# ==========================================================
+# build section
+# crate-type : dylib, proc-macro, cdylib, bin, etc.
+# ==========================================================
+%build
+%{rustc_std_build} --crate-type=dylib \
+ --crate-name=%{real_crate_name} \
+ %{?rustc_edition:--edition=%{rustc_edition}} \
+ ./src/lib.rs
+
+# ==========================================================
+# install section
+# ==========================================================
+%install
+install -d -m 0755 %{buildroot}%{_rust_dylibdir}
+install -m 0644 lib%{real_crate_name}.so %{buildroot}/%{_rust_dylibdir}/lib%{real_crate_name}.so
+
+%clean
+
+%post -p /sbin/ldconfig
+
+%postun -p /sbin/ldconfig
+
+# ==========================================================
+# files section
+# ==========================================================
+%files
+%manifest %{name}.manifest
+%license LICENSE-APACHE
+%license LICENSE-MIT
+%{_rust_dylibdir}/lib%{real_crate_name}.so