diff --git a/libsrtp.spec b/libsrtp.spec
index 6a74dc6dfedecc42be1f4c7f9fc309ee9e3a4ac2..ba1fddfc4b9a9e4cb6aabeb060ba7f19746d3301 100644
--- a/libsrtp.spec
+++ b/libsrtp.spec
@@ -1,4 +1,4 @@
-%define anolis_release 1
+%define anolis_release 2
 %global shortname srtp
 
 Name:		libsrtp
@@ -16,9 +16,17 @@ This package provides an implementation of the Secure Real-time
 Transport Protocol (SRTP), the Universal Security Transform (UST), and
 a supporting cryptographic kernel.
 
+%package doc
+Summary:        Documentation files for %{name}
+Requires:       %{name} = %{version}-%{release}
+BuildArch:      noarch
+
+%description    doc
+The %{name}-doc package contains documentation files for %{name}.
+
 %package devel
 Summary:	Development files for %{name}
-Requires:	%{name}%{?_isa} = %{version}-%{release}
+Requires:	%{name} = %{version}-%{release}
 Requires:	pkgconfig
 
 %description devel
@@ -27,7 +35,7 @@ developing applications that use %{name}.
 
 %package tools
 Summary:	Tools for testing and decoding SRTP
-Requires:	%{name}%{?_isa} = %{version}-%{release}
+Requires:	%{name} = %{version}-%{release}
 
 %description tools
 Tools for testing and decoding SRTP
@@ -54,12 +62,18 @@ install -D -p -m 0755 test/rtpw %{buildroot}%{_bindir}/rtpw
 install -D -p -m 0755 test/srtp_driver %{buildroot}%{_bindir}/srtp_driver
 install -D -p -m 0755 test/test_srtp %{buildroot}%{_bindir}/test_srtp
 
+%generate_compatibility_deps
+
 %ldconfig_scriptlets
 
 %files
+%dir %{abidir}
 %license LICENSE
-%doc CHANGES README.md
 %{_libdir}/*.so.*
+%{abidir}/*.dump
+
+%files doc
+%doc CHANGES README.md
 
 %files devel
 %{_includedir}/%{shortname}2/
@@ -68,8 +82,12 @@ install -D -p -m 0755 test/test_srtp %{buildroot}%{_bindir}/test_srtp
 
 %files tools
 %{_bindir}/*
+%{abidir}/*-option.list
 
 %changelog
+* Thu Oct 20 2022 mgb01105731 <mgb01105731@alibaba-inc.com> - 2.4.2-2
+- optimise spec file & add doc package
+
 * Fri Apr 08 2022 mgb01105731 <mgb01105731@alibaba-inc.com> - 2.4.2-1
 - Init from upstream version 2.4.2