failed to load libnsl.so.1 lib file on solaris X86

 HI 

i was trying to load CIFS modules to my solaris server.

output of ldd command showing one library file missing.

libsmbfs.so.1 =>         /usr/lib/libsmbfs.so.1

        libnsl.so.1 =>   /lib/libnsl.so.1

        libc.so.1 =>     /lib/libc.so.1

        libsocket.so.1 =>        /lib/libsocket.so.1

        libnsl.so.1 (SUNW_1.10) =>       (version not found)

        libkrb5.so.1 =>  /usr/lib/libkrb5.so.1

        libmp.so.2 =>    /lib/libmp.so.2

        libmd.so.1 =>    /lib/libmd.so.1

        libscf.so.1 =>   /lib/libscf.so.1

        libdoor.so.1 =>  /lib/libdoor.so.1

        libuutil.so.1 =>         /lib/libuutil.so.1

        libgen.so.1 =>   /lib/libgen.so.1

        libm.so.2 =>     /lib/libm.so.2

        mech_krb5.so.1 =>        /usr/lib/gss/mech_krb5.so.1

        libgss.so.1 =>   /usr/lib/libgss.so.1