Late break-in patch for MacOS support.
diff --git a/crypto/cryptlib.c b/crypto/cryptlib.c
index 5142b6b..a8f29f1 100644
--- a/crypto/cryptlib.c
+++ b/crypto/cryptlib.c
@@ -183,7 +183,7 @@
 		ret=(unsigned long)GetCurrentTask();
 #elif defined(WIN32)
 		ret=(unsigned long)GetCurrentThreadId();
-#elif defined(MSDOS)
+#elif defined(GETPID_IS_MEANINGLESS)
 		ret=1L;
 #else
 		ret=(unsigned long)getpid();