diff --git a/CentOS-9/SPECS/frozen.spec b/CentOS-9/SPECS/frozen.spec
new file mode 100644
index 0000000..5cd5fdc
--- /dev/null
+++ b/CentOS-9/SPECS/frozen.spec
@@ -0,0 +1,65 @@
+# Header-only package
+%global debug_package %{nil}
+
+Name:           frozen
+Version:        1.1.1
+Release:        3%{?dist}
+Summary:        A header-only, constexpr alternative to gperf for C++14 users 
+
+License:        Apache-2.0
+URL:            https://github.com/serge-sans-paille/frozen
+Source0:        %{url}/archive/%{version}/%{name}-%{version}.tar.gz
+# Fixes FTBFS, already present in upstream main branch.
+Patch0:         includes.patch
+Patch1:         079f73cc5c6413127d47f325cbb34a607e2cb030.patch
+
+BuildRequires: gcc-c++
+BuildRequires: cmake
+
+%description
+Header-only library that provides 0 cost initialization
+for immutable containers, fixed-size containers, and
+various algorithms.
+
+%package devel
+Summary:        Development files for %{name}
+BuildArch:      noarch
+Requires:       pkgconfig
+Provides:       %{name}-static = %{version}-%{release}
+
+%description devel
+Development files for %{name}.
+
+
+%prep
+%setup -q
+
+%patch -P 0 -p0
+%patch -P 1 -p1
+
+%build
+%cmake -DCMAKE_BUILD_TYPE=Release
+%cmake_build
+
+%check
+%ctest
+
+%install
+%cmake_install
+
+
+%files devel
+%license LICENSE
+%doc examples/ AUTHORS README.rst
+%{_includedir}/frozen/
+%{_datadir}/cmake/%{name}/
+
+%changelog
+* Wed Jul 19 2023 Gwyn Ciesla <gwync@protonmail.com> - 1.1.1-3
+- Drop main package.
+
+* Tue Jul 18 2023 Gwyn Ciesla <gwync@protonmail.com> - 1.1.1-2
+- review fixes.
+
+* Mon Jul 17 2023 Gwyn Ciesla <gwync@protonmail.com> - 1.1.1-1
+- Initial package.