--- /dev/null
+Summary: Dragonbox float-to-string conversion algorithm implementation
+Summary(pl.UTF-8): Implementacja algorytmu Dragonbox do zamiany liczb zmiennoprzecinkowych na łańcuchy znaków
+Name: dragonbox
+Version: 1.1.3
+Release: 1
+License: Apache v2.0 with LLVM Exceptions or Boost v1.0
+Group: Development/Libraries
+#Source0Download: https://github.com/jk-jeon/dragonbox/releases
+Source0: https://github.com/jk-jeon/dragonbox/archive/%{version}/%{name}-%{version}.tar.gz
+# Source0-md5: 889dc00db9612c6949a4ccf8115e0e6a
+URL: https://github.com/jk-jeon/dragonbox
+BuildRequires: cmake >= 3.14
+BuildRequires: rpmbuild(macros) >= 1.605
+BuildRequires: libstdc++-devel >= 6:7
+BuildRoot: %{tmpdir}/%{name}-%{version}-root-%(id -u -n)
+
+%description
+This library is a reference implementation of Dragonbox in C++.
+
+Dragonbox is a float-to-string conversion algorithm based on a
+beautiful algorithm Schubfach
+<https://drive.google.com/open?id=1luHhyQF9zKlM8yJ1nebU0OgVYhfC6CBN>,
+developed by Raffaello Giulietti in 2017-2018.
+
+%description -l pl.UTF-8
+Ta biblioteka to referencyjna implementacja algorytmu Dragonbox w C++.
+
+Dragonbox to algorytm konwersji liczb zmiennoprzecinkowych na łańcuchy
+znaków oparty na pięknym algorytmie Schubfach
+<https://drive.google.com/open?id=1luHhyQF9zKlM8yJ1nebU0OgVYhfC6CBN>,
+stworzonym przez Raffaello Giulietti w 2017-2018.
+
+%package devel
+Summary: Dragonbox float-to-string conversion algorithm implementation
+Summary(pl.UTF-8): Implementacja algorytmu Dragonbox do zamiany liczb zmiennoprzecinkowych na łańcuchy znaków
+Group: Development/Libraries
+Requires: libstdc++-devel >= 6:7
+
+%description devel
+This library is a reference implementation of Dragonbox in C++.
+
+Dragonbox is a float-to-string conversion algorithm based on a
+beautiful algorithm Schubfach
+<https://drive.google.com/open?id=1luHhyQF9zKlM8yJ1nebU0OgVYhfC6CBN>,
+developed by Raffaello Giulietti in 2017-2018.
+
+%description devel -l pl.UTF-8
+Ta biblioteka to referencyjna implementacja algorytmu Dragonbox w C++.
+
+Dragonbox to algorytm konwersji liczb zmiennoprzecinkowych na łańcuchy
+znaków oparty na pięknym algorytmie Schubfach
+<https://drive.google.com/open?id=1luHhyQF9zKlM8yJ1nebU0OgVYhfC6CBN>,
+stworzonym przez Raffaello Giulietti w 2017-2018.
+
+%prep
+%setup -q
+
+%build
+%cmake -B build
+
+%{__make} -C build
+
+%install
+rm -rf $RPM_BUILD_ROOT
+
+%{__make} -C build install \
+ DESTDIR=$RPM_BUILD_ROOT
+
+%clean
+rm -rf $RPM_BUILD_ROOT
+
+%files devel
+%defattr(644,root,root,755)
+%doc LICENSE-Apache2-LLVM LICENSE-Boost README.md
+%{_libdir}/libdragonbox_to_chars.a
+%{_includedir}/dragonbox-%{version}
+%{_libdir}/cmake/dragonbox-%{version}