diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..e69de29
diff --git a/0001-Loosen-parking_lot-dependency-constraints.patch b/0001-Loosen-parking_lot-dependency-constraints.patch
new file mode 100644
index 0000000..9460b2a
--- /dev/null
+++ b/0001-Loosen-parking_lot-dependency-constraints.patch
@@ -0,0 +1,29 @@
+From 32cd3651571477dd263f454da19123a0db89ceab Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Jan=20Stan=C4=9Bk?= <jstanek@redhat.com>
+Date: Thu, 7 Feb 2019 17:00:34 +0100
+Subject: [PATCH] Loosen parking_lot dependency constraints
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+Signed-off-by: Jan Staněk <jstanek@redhat.com>
+---
+ Cargo.toml | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/Cargo.toml b/Cargo.toml
+index b26e4ce..4d44080 100644
+--- a/Cargo.toml
++++ b/Cargo.toml
+@@ -23,7 +23,7 @@ categories = ["rust-patterns", "memory-management"]
+ license = "MIT OR Apache-2.0"
+ repository = "https://github.com/matklad/once_cell"
+ [dependencies.parking_lot]
+-version = "0.7.1"
++version = ">=0.6.4,<0.8.0"
+ optional = true
+ default_features = false
+ [dev-dependencies.crossbeam-utils]
+-- 
+2.20.1
+
diff --git a/0002-Exclude-unnecessary-files.patch b/0002-Exclude-unnecessary-files.patch
new file mode 100644
index 0000000..374bccd
--- /dev/null
+++ b/0002-Exclude-unnecessary-files.patch
@@ -0,0 +1,26 @@
+From 5bec30616b685f4b0dea254ea149dd352c6ad097 Mon Sep 17 00:00:00 2001
+From: rpm-build <rpm-build>
+Date: Fri, 8 Feb 2019 16:19:26 +0100
+Subject: [PATCH 2/2] Exclude unnecessary files
+
+Signed-off-by: rpm-build <rpm-build>
+---
+ Cargo.toml | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/Cargo.toml b/Cargo.toml
+index 4d44080..7168f37 100644
+--- a/Cargo.toml
++++ b/Cargo.toml
+@@ -14,7 +14,7 @@
+ name = "once_cell"
+ version = "0.1.8"
+ authors = ["Aleksey Kladov <aleksey.kladov@gmail.com>"]
+-exclude = ["*.png", "*.svg"]
++exclude = ["*.png", "*.svg", "/.travis.yml", "/examples/*", "/Cargo.lock.min"]
+ description = "Single assignment cells and lazy static values without macros."
+ documentation = "https://docs.rs/once_cell"
+ readme = "README.md"
+-- 
+2.20.1
+
diff --git a/once_cell-0.1.8.crate b/once_cell-0.1.8.crate
new file mode 100644
index 0000000..5e0526a
Binary files /dev/null and b/once_cell-0.1.8.crate differ
diff --git a/rust-once_cell.spec b/rust-once_cell.spec
new file mode 100644
index 0000000..fced00c
--- /dev/null
+++ b/rust-once_cell.spec
@@ -0,0 +1,66 @@
+# Generated by rust2rpm
+%bcond_without check
+%global debug_package %{nil}
+
+%global crate once_cell
+
+Name:           rust-%{crate}
+Version:        0.1.8
+Release:        1%{?dist}
+Summary:        Single assignment cells and lazy static values without macros
+
+# Upstream license specification: MIT OR Apache-2.0
+License:        MIT or ASL 2.0
+URL:            https://crates.io/crates/once_cell
+Source0:        https://crates.io/api/v1/crates/%{crate}/%{version}/download#/%{crate}-%{version}.crate
+
+# Allow F29 builds
+Patch0:         0001-Loosen-parking_lot-dependency-constraints.patch
+Patch1:         0002-Exclude-unnecessary-files.patch
+
+ExclusiveArch:  %{rust_arches}
+
+BuildRequires:  rust-packaging
+# [dependencies]
+BuildRequires:  (crate(parking_lot) >= 0.6.4 with crate(parking_lot) < 0.8.0)
+%if %{with check}
+# [dev-dependencies]
+BuildRequires:  (crate(crossbeam-utils/default) >= 0.6.0 with crate(crossbeam-utils/default) < 0.7.0)
+%endif
+
+%description
+%{summary}.
+
+%package        devel
+Summary:        %{summary}
+BuildArch:      noarch
+
+%description    devel
+Single assignment cells and lazy static values without macros.
+
+This package contains library source intended for building other packages
+which use %{crate} from crates.io.
+
+%prep
+%autosetup -n %{crate}-%{version} -p1
+%cargo_prep
+
+%build
+%cargo_build
+
+%install
+%cargo_install
+
+%if %{with check}
+%check
+%cargo_test
+%endif
+
+%files          devel
+%license LICENSE-APACHE LICENSE-MIT
+%doc README.md CHANGELOG.md
+%{cargo_registry}/%{crate}-%{version}/
+
+%changelog
+* Thu Feb 07 2019 Jan Stanek <jstanek@redhat.com> - 0.1.8-1
+- Initial package
diff --git a/sources b/sources
new file mode 100644
index 0000000..e69de29