Use correct OpenSSL thread safety macros on OS X (closes #209) Create an Autoconf test to determine if pthread_t is a pointer or scalar type, and use the appropriate CRYPTO_THREADID_set macro based on the result.

ffi test
include test.h
script http://localhost/test/test.js
link test.o
effectful Test.print
serverOnly Test.foo
clientOnly Test.bar
effectful Test.transactional
jsFunc Test.print=print
jsFunc Test.bar=bar