loader: Use the Mach thread port as thread id on Mac OS.
diff --git a/loader/pthread.c b/loader/pthread.c
index 9a7834e..17be9e4 100644
--- a/loader/pthread.c
+++ b/loader/pthread.c
@@ -34,6 +34,9 @@
#ifdef HAVE_SYS_MMAN_H
#include <sys/mman.h>
#endif
+#ifdef HAVE_MACH_MACH_H
+#include <mach/mach.h>
+#endif
#include "wine/library.h"
#include "wine/pthread.h"
@@ -144,6 +147,8 @@
info->pid = getpid();
#ifdef __sun
info->tid = pthread_self(); /* this should return the lwp id on solaris */
+#elif defined(__APPLE__)
+ info->tid = mach_thread_self();
#else
info->tid = gettid();
#endif
