[GENERAL] Error Creating DBlink Extension in 9.4.1

[Nykolyn, Andy (AS)]

I get the following error in my 9.4.1 database when I issue the command:

Create extension dblink;

ERROR:  could not load library "/usr/local/pgsql941/lib/dblink.so": 
/usr/local/pgsql941/lib/dblink.so: undefined symbol: PQsetSingleRowMode

Is this a bug or did I do something wrong?  Any help would be greatly 
appreciated.  Thanks

Andrew Nykolyn
Northrop Grumman