Fix pthread Configure on FreeBSD as discussed in issue #24333
Fix pthread Configure on FreeBSD as discussed in issue #24333

Courtesy of "Lars Balker Rasmussen" <lars@balker.org>
  and "Nick Kostirya" <nick@han.kherson.ua>


git-svn-id: 6e74a02f85675cec270f5d931b0f6998666294a3@4825 d31e2699-5ff4-0310-a27c-f18f2fbe73fe

FROGGS/parrot,fernandobrito/parrot,tkob/parrot,gagern/parrot,tewk/parrot-select,fernandobrito/parrot,FROGGS/parrot,parrot/parrot,parrot/parrot,gagern/parrot,gitster/parrot,gitster/parrot,youprofit/parrot,gagern/parrot,gitster/parrot,FROGGS/parrot,gagern/parrot,tkob/parrot,youprofit/parrot,gagern/parrot,tewk/parrot-select,fernandobrito/parrot,gagern/parrot,FROGGS/parrot,youprofit/parrot,youprofit/parrot,youprofit/parrot,tkob/parrot,gagern/parrot,gitster/parrot,FROGGS/parrot,tkob/parrot,parrot/parrot,tewk/parrot-select,tewk/parrot-select,tewk/parrot-select,youprofit/parrot,tkob/parrot,fernandobrito/parrot,FROGGS/parrot,fernandobrito/parrot,tkob/parrot,youprofit/parrot,tewk/parrot-select,tewk/parrot-select,tkob/parrot,fernandobrito/parrot,parrot/parrot,gitster/parrot,FROGGS/parrot,gitster/parrot,youprofit/parrot,gitster/parrot,tkob/parrot,parrot/parrot,fernandobrito/parrot,FROGGS/parrot