Portability fixes

innobase/os/os0thread.c:
  Portability fix
myisam/sort.c:
  Fixed wrong variable type (gave compiler warning)

innobase/os/os0thread.c

@@ -201,6 +201,7 @@ os_thread_exit(
 #endif
 }
 
+#ifdef HAVE_PTHREAD_JOIN
 int
 os_thread_join(
 /*=============*/
@@ -208,6 +209,7 @@ os_thread_join(
 {
   return pthread_join(thread_id, NULL);
 }
+#endif
 /*********************************************************************
 Returns handle to the current thread. */
 

myisam/sort.c

@@ -852,7 +852,7 @@ merge_buffers(MI_SORT_PARAM *info, uint keys, IO_CACHE *from_file,
   uchar *strpos;
   BUFFPEK *buffpek,**refpek;
   QUEUE queue;
-  volatile bool *killed= killed_ptr(info->sort_info->param);
+  volatile my_bool *killed= killed_ptr(info->sort_info->param);
   DBUG_ENTER("merge_buffers");
 
   count=error=0;
@@ -873,7 +873,8 @@ merge_buffers(MI_SORT_PARAM *info, uint keys, IO_CACHE *from_file,
     count+= buffpek->count;
     buffpek->base= strpos;
     buffpek->max_keys=maxcount;
-    strpos+= (uint) (error=(int) info->read_to_buffer(from_file,buffpek,sort_length));
+    strpos+= (uint) (error=(int) info->read_to_buffer(from_file,buffpek,
+                                                      sort_length));
     if (error == -1)
       goto err; /* purecov: inspected */
     queue_insert(&queue,(char*) buffpek);
@@ -890,7 +891,8 @@ merge_buffers(MI_SORT_PARAM *info, uint keys, IO_CACHE *from_file,
       buffpek=(BUFFPEK*) queue_top(&queue);
       if (to_file)
       {
-        if (info->write_key(info,to_file,(byte*) buffpek->key,(uint) sort_length,1))
+        if (info->write_key(info,to_file,(byte*) buffpek->key,
+                            (uint) sort_length,1))
         {
           error=1; goto err; /* purecov: inspected */
         }