Prefer -lpthread over -pthread.
Prefer -lpthread over -pthread.

git-svn-id: 3ec853389310512053d525963cab269c063bb453@634237 13f79535-47bb-0310-9956-ffa450edef68

AaronNGray/xerces,AaronNGray/xerces,AaronNGray/xerces,AaronNGray/xerces