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+%define anolis_release 1
+%global source_dir  %{_datadir}/%{name}-source
+%global inst_srcdir %{buildroot}/%{source_dir}
+
+Name:             libev
+Version:          4.33
+Release:          %{anolis_release}%{?dist}
+Summary:          High-performance event loop/event model with lots of features
+
+License:          BSD or GPLv2+
+URL:              http://software.schmorp.de/pkg/libev.html
+Source0:          http://dist.schmorp.de/libev/Attic/%{name}-%{version}.tar.gz
+
+BuildRequires:    autoconf
+BuildRequires:    automake
+BuildRequires:    coreutils
+BuildRequires:    findutils
+BuildRequires:    gcc
+BuildRequires:    libtool
+BuildRequires:    make
+BuildRequires:    tar
+
+Provides:         bundled(libecb) = 1.05
+
+%description
+Libev is modeled (very loosely) after libevent and the Event Perl
+module, but is faster, scales better and is more correct, and also more
+featureful. And also smaller.
+
+%package devel
+Summary:          Development headers for libev
+Requires:         %{name}%{?_isa} = %{version}-%{release}
+
+%description devel
+This package contains the development headers and libraries for libev.
+
+%package libevent-devel
+Summary:          Compatibility development header with libevent for %{name}.
+Requires:         %{name}-devel%{?_isa} = %{version}-%{release}
+
+# The event.h file actually conflicts with the one from libevent-devel
+Conflicts:        libevent-devel
+
+%description libevent-devel
+This package contains a development header to make libev compatible with
+libevent.
+
+%package source
+Summary:          High-performance event loop/event model with lots of features
+BuildArch:        noarch
+Provides:         bundled(libecb) = 1.05
+
+%description source
+This package contains the source code for libev.
+
+%prep
+%autosetup -p0
+autoreconf -vfi
+
+%build
+%configure --disable-static --with-pic
+%make_build
+
+%check
+make check
+
+%install
+%make_install
+rm -vf %{buildroot}%{_libdir}/%{name}.la
+
+# Make the source package
+mkdir -p %{inst_srcdir}
+find . -type f | grep -E '.*\.(c|h|am|ac|inc|m4|h.in|man.pre|pl|txt)$' | xargs tar cf - | (cd %{inst_srcdir} && tar xf -)
+install -p -m 0644 Changes ev.pod LICENSE README %{inst_srcdir}
+
+%ldconfig_scriptlets
+
+%files
+%license LICENSE
+%doc Changes README
+%{_libdir}/%{name}.so.4*
+
+%files devel
+%{_includedir}/ev++.h
+%{_includedir}/ev.h
+%{_libdir}/%{name}.so
+%{_mandir}/man?/*
+
+%files libevent-devel
+%{_includedir}/event.h
+
+%files source
+%{source_dir}
+
+%changelog
+* Wed Apr 06 2022 mgb01105731 <mgb01105731@alibaba-inc.com> - 4.33-1
+- Init from upstream version 4.33
+