--- /dev/null
+diff --git a/src/lib.rs b/src/lib.rs
+index 8affa46..c93202d 100644
+--- a/src/lib.rs
++++ b/src/lib.rs
+@@ -50,6 +50,7 @@
+ html_root_url = "https://docs.rs/blobby/0.3.1"
+ )]
+ extern crate alloc;
++extern crate std;
+
+ use alloc::{boxed::Box, collections::BTreeMap, vec, vec::Vec};
+ use core::iter::Iterator;
--- /dev/null
+# Generated by rust2rpm 23
+%global _rpm_strip_disable 1
+%global debug_package %{nil}
+
+%global crate blobby
+%global real_crate_name blobby
+%global rustc_edition 2018
+
+Name: rust-blobby
+Version: 0.3.1
+Release: 1
+Summary: Iterator over simple binary blob storage
+
+License: MIT OR Apache-2.0
+URL: https://crates.io/crates/blobby
+Source: %{crate}-%{version}.tar.gz
+Source1: %{name}.manifest
+Source2: extern.patch
+
+# ==========================================================
+# BuildRequires
+# specifies build-time dependencies for the package
+# ==========================================================
+BuildRequires: rust
+
+# ==========================================================
+# dev-dependencies
+# ==========================================================
+# BuildRequires: rust-hex
+
+
+%description
+Iterator over simple binary blob storage.
+
+%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