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+%global debug_package %{nil}
+
+Name:           ocaml-extlib
+Version:        1.7.5
+Release:        4
+Summary:        A set of additional useful functions and modules for OCaml
+License:        LGPLv2+ with exceptions
+URL:            https://github.com/ygrek/ocaml-extlib
+Source0:        https://github.com/ygrek/ocaml-extlib/releases/download/%{version}/extlib-%{version}.tar.gz
+
+BuildRequires:  gawk git ocaml >= 4.00.1 ocaml-camlp4-devel ocaml-cppo
+BuildRequires:  ocaml-findlib-devel >= 1.3.3-3 ocaml-ocamldoc
+
+%description
+A complete yet small extension for OCaml standard library (reduced, recommended)
+
+The purpose of this library is to add new functions to OCaml standard library modules, to modify
+some functions in order to get better performances or safety (tail-recursive) and also to provide
+new modules which should be useful for day to day programming.
+
+%package        devel
+Summary:        Development documents for %{name}
+Requires:       %{name} = %{version}-%{release}
+
+%description    devel
+The package provides libraries and some other development documents for developing applications
+that use %{name}.
+
+%prep
+%autosetup -S git -p1 -n extlib-%{version}
+
+%build
+unset MAKEFLAGS
+make build -j1
+
+%install
+export DESTDIR=$RPM_BUILD_ROOT OCAMLFIND_DESTDIR=$RPM_BUILD_ROOT%{_libdir}/ocaml
+install -d $OCAMLFIND_DESTDIR/stublibs
+%make_install
+
+%files
+%doc README.md
+%license LICENSE
+%{_libdir}/ocaml/extlib
+%exclude %{_libdir}/ocaml/extlib/*.{a,cmx,cmxa,mli}
+
+%files devel
+%{_libdir}/ocaml/extlib/*.{a,cmx,cmxa,mli}
+
+%changelog
+* Wed Feb 26 2020 zhouyihang<zhouyihang1@huawei.com> - 1.7.5-4
+- Package init