message: [OS X] Allow building with custom OpenSSL library
  Fixes
diff: @@ -226,8 +226,15 @@ class PhantomJSBuilder(object):
  if not openssl_found:
  raise RuntimeError("Could not find OpenSSL")
  else:
  - # TODO: Implement
  - raise RuntimeError("Not implemented")
  + if os.path.exists(openssl + "/include/openssl/opensslv.h"):
  + openssl_found = True
  + openssl_include = "-I" + openssl + "/include"
  + openssl_lib = "-L" + openssl + "/lib"
  + platformOptions.extend([openssl_include, openssl_lib])
  + print("Using OpenSSL at %s" % openssl)
  +
  + if not openssl_found:
  + raise RuntimeError("No OpenSSL specified: OPENSSL environment variable not found")
  else:
  # options specific to other Unixes, like Linux, BSD, ...
  platformOptions.extend([
  