diff --git a/libnsl-2.0.0.tar.gz b/libnsl-2.0.0.tar.gz
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diff --git a/libnsl-fbad7b36acaa89a54023930af70805649f962999.tar.gz b/libnsl-fbad7b36acaa89a54023930af70805649f962999.tar.gz
deleted file mode 100644
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diff --git a/libnsl2.spec b/libnsl2.spec
index 4dbbe4b683453d4277a5d79bbb16dcd6d4abaa8f..b547ba3a043db550250b47309ba4fc2c64ff18be 100644
--- a/libnsl2.spec
+++ b/libnsl2.spec
@@ -1,14 +1,24 @@
-%global commit0 fbad7b36acaa89a54023930af70805649f962999
+# Uncomment on initial build for soname bump.
+%global bump_soname 1
+%global sover 3
+
+%if 0%{?bump_soname}
+%global relsuffix ~sonamebump
+%global old_sover %(echo $((%{sover}-1)))
+%endif
 
 Name:       libnsl2
-Version:    1.3.0
-Release:    2
+Version:    2.0.0
+Release:    1
 Summary:    Public client interface library for NIS(YP) and NIS+
 License:    BSD and LGPLv2+
 URL:        https://github.com/thkukuk/libnsl
-Source0:    https://github.com/thkukuk/libnsl/archive/%{commit0}.tar.gz#/libnsl-%{commit0}.tar.gz
+Source0:    https://github.com/thkukuk/libnsl/archive/libnsl-%{version}.tar.gz
 
 BuildRequires: automake, autoconf, libtirpc-devel, gettext-devel, libtool
+%if 0%{?bump_soname}
+BuildRequires: libnsl2
+%endif
 
 %description
 This package contains the libnsl library. This library contains
@@ -30,35 +40,28 @@ that use %{name}
 %setup -q -n libnsl-%{version}
 
 %build
-
-export CFLAGS="%{optflags}"
-
 autoreconf -fiv
 
 %configure\
     --libdir=%{_exec_prefix}/%{_lib}\
     --includedir=%{_prefix}/include
 
-make %{?_smp_mflags}
+%make_build
 
 %install
+%make_install
+rm %{buildroot}/%{_libdir}/libnsl.{a,la}
 
-make install DESTDIR=%{buildroot}
-
-rm -f %{buildroot}/%{_libdir}/libnsl.a || :
-rm -f  %{buildroot}/%{_libdir}/libnsl.la || :
-
-%post
-/sbin/ldconfig
-
-%postun
-/sbin/ldconfig
+%if 0%{?bump_soname}
+cp -p %{_libdir}/libnsl.so.%{old_sover}* %{buildroot}/%{_libdir}
+%endif
 
 %files
-%{_exec_prefix}/%{_lib}/libnsl.so.2
-%{_exec_prefix}/%{_lib}/libnsl.so.2.0.1
-
 %license COPYING
+%{_libdir}/libnsl.so.%{sover}*
+%if 0%{?bump_soname}
+%{_libdir}/libnsl.so.%{old_sover}*
+%endif
 
 %files devel
 %{_exec_prefix}/%{_lib}/libnsl.so
@@ -66,6 +69,9 @@ rm -f  %{buildroot}/%{_libdir}/libnsl.la || :
 %{_prefix}/include/*
 
 %changelog
+* Tue Dec 28 2021 fuanan <fuanan3@huawei.com> - 2.0.0-1
+- update version to 2.0.0
+
 * Fri Apr 23 2021 yang_zhuang_zhuang<yangzhuangzhuang1@huawei.com> - 1.3.0-2
 - Delete so file of the old version