Anyone using the solaris 11 precompiled binaries on opensolaris snv_134

Hi,

I'm trying to run the precomplied binaries form postgresql.org for
solaris 11 intel. The Read-me says it has been compiled on opensolaris
2010.11 which is (to the best of my knowledge snv_134). My machine is
also snv_134.

When I do ldd /usr/postgres/9.1-pgdg/bin/postgres it tells me that:

libsocket.so.1 (SUNW_1.7) => (version not found)

$ pvs /lib/libsocket.so.1
libnsl.so.1 (SUNW_1.7, SUNWprivate_1.1);
libc.so.1 (SUNW_1.23, SUNWprivate_1.1);
libsocket.so.1;
SUNW_1.6;
SUNW_1.5;
SUNW_1.4;
SUNW_1.3;
SUNW_1.2;
SUNW_1.1;
SUNW_0.7;
SUNWprivate_1.3;
SUNWprivate_1.2;
SUNWprivate_1.1;

So my libc has only the interfaces up to SUNW_1.6. How can this happen
that two snv_134 machines have different libsockets? I thought that the
new Solaris pkg Package management solved this Problem.

Thanks for your insight

Thomas