Don't use -rpath on OS X
Don't use -rpath on OS X

Change-Id: If144b6ad41a6c97a32121d3407e203ed3ddd9666
Reviewed-on: http://review.couchbase.org/28652
Tested-by: Mark Nunberg <e7d42768707bf23038325b0b68d4b577e5f6064a@haskalah.org>
Reviewed-by: Brett Lawson <c8c4369773d7d7226e031f0c4af62e3f38a08510@gmail.com>

KenanSulayman/couchnode,KenanSulayman/couchnode,couchbase/couchnode,brett19/couchnode,couchbase/couchnode,KenanSulayman/couchnode,actano/couchnode,ConnectedHomes/couchnode,GannettDigital/couchnode,Bloutiouf/couchnode,GannettDigital/couchnode,corbinu/couchnode,KenanSulayman/couchnode,corbinu/couchnode,brett19/couchnode,jess-sheneberger/couchnode,kshmir/couchnode,ConnectedHomes/couchnode,Bloutiouf/couchnode,couchbase/couchnode,brett19/couchnode,Bloutiouf/couchnode,actano/couchnode,jess-sheneberger/couchnode,kshmir/couchnode,jess-sheneberger/couchnode,jess-sheneberger/couchnode,couchbase/couchnode,Bloutiouf/couchnode,corbinu/couchnode,GannettDigital/couchnode,kshmir/couchnode,ConnectedHomes/couchnode,ConnectedHomes/couchnode,actano/couchnode