Missing external symbol strcasestr on Solaris 10

~/mongodb-sunos5-x86_64-2.4.3/bin

$ env LD_LIBRARY_PATH=. ldd -r ./mongod

        libsocket.so.1 =>        /lib/64/libsocket.so.1

        libresolv.so.2 =>        /lib/64/libresolv.so.2

        librt.so.1 =>    /lib/64/librt.so.1

        libnsl.so.1 =>   /lib/64/libnsl.so.1

        libstdc++.so.6 =>        ./libstdc++.so.6

        libm.so.2 =>     /lib/64/libm.so.2

        libgcc_s.so.1 =>         ./libgcc_s.so.1

        libpthread.so.1 =>       /lib/64/libpthread.so.1

        libc.so.1 =>     /lib/64/libc.so.1

        libaio.so.1 =>   /lib/64/libaio.so.1

        libmd.so.1 =>    /lib/64/libmd.so.1

        libmp.so.2 =>    /lib/64/libmp.so.2

        libscf.so.1 =>   /lib/64/libscf.so.1

        libdoor.so.1 =>  /lib/64/libdoor.so.1

        libuutil.so.1 =>         /lib/64/libuutil.so.1

        libgen.so.1 =>   /lib/64/libgen.so.1

        symbol not found: posix_fadvise         (mongod)

        symbol not found: strcasestr            (mongod)

        symbol not found: backtrace             (mongod)

        symbol not found: backtrace_symbols_fd          (mongod)

        symbol not found: backtrace_symbols             (mongod)