ports/55683: Add USE_PTHREAD_HACK to bsd.port.mk for simplified pthread handling

[Erwin Lansing]

Synopsis: Add USE_PTHREAD_HACK to bsd.port.mk for simplified pthread handling

Responsible-Changed-From-To: freebsd-ports-bugs->portmgr
Responsible-Changed-By: erwin
Responsible-Changed-When: Mon Aug 18 00:05:48 PDT 2003
Responsible-Changed-Why: 
portmgr territory

http://www.freebsd.org/cgi/query-pr.cgi?pr=55683