Index: gdb-8.0/gdb/gnu-nat.c
===================================================================
--- gdb-8.0.orig/gdb/gnu-nat.c
+++ gdb-8.0/gdb/gnu-nat.c
@@ -1869,22 +1869,28 @@ S_proc_wait_reply (mach_port_t reply, ke
   return 0;
 }
 
+/* Note: The third argument to S_proc_getmsgport_reply, S_proc_task2proc_reply and
+   S_proc_pid2proc_reply is of type mach_port_poly_t. Look at gdb/process_reply_S.h
+   derived from process_reply.defs to find out the fourth argument */
+
 ILL_RPC (S_proc_setmsgport_reply,
 	 mach_port_t reply_port, kern_return_t return_code,
 	 mach_port_t oldmsgport)
 ILL_RPC (S_proc_getmsgport_reply,
 	 mach_port_t reply_port, kern_return_t return_code,
-	 mach_port_t msgports)
+	 mach_port_t msgports, mach_msg_type_name_t msgportsPoly)
 ILL_RPC (S_proc_pid2task_reply,
 	 mach_port_t reply_port, kern_return_t return_code, mach_port_t task)
 ILL_RPC (S_proc_task2pid_reply,
 	 mach_port_t reply_port, kern_return_t return_code, pid_t pid)
 ILL_RPC (S_proc_task2proc_reply,
-	 mach_port_t reply_port, kern_return_t return_code, mach_port_t proc)
+	 mach_port_t reply_port, kern_return_t return_code, mach_port_t proc,
+	 mach_msg_type_name_t procPoly)
 ILL_RPC (S_proc_proc2task_reply,
 	 mach_port_t reply_port, kern_return_t return_code, mach_port_t task)
 ILL_RPC (S_proc_pid2proc_reply,
-	 mach_port_t reply_port, kern_return_t return_code, mach_port_t proc)
+	 mach_port_t reply_port, kern_return_t return_code, mach_port_t proc,
+	 mach_msg_type_name_t procPoly)
 ILL_RPC (S_proc_getprocinfo_reply,
 	 mach_port_t reply_port, kern_return_t return_code,
 	 int flags, procinfo_t procinfo, mach_msg_type_number_t procinfoCnt,
@@ -2356,7 +2362,7 @@ gnu_write_inferior (task_t task, CORE_AD
   mach_msg_type_number_t copy_count;
   int deallocate = 0;
 
-  char *errstr = "Bug in gnu_write_inferior";
+  const char *errstr = "Bug in gnu_write_inferior";
 
   struct vm_region_list *region_element;
   struct vm_region_list *region_head = NULL;
@@ -2743,7 +2749,7 @@ show_thread_default_cmd (char *args, int
 }
 
 static int
-parse_int_arg (char *args, char *cmd_prefix)
+parse_int_arg (const char *args, const char *cmd_prefix)
 {
   if (args)
     {
@@ -2758,7 +2764,7 @@ parse_int_arg (char *args, char *cmd_pre
 }
 
 static int
-_parse_bool_arg (char *args, char *t_val, char *f_val, char *cmd_prefix)
+_parse_bool_arg (const char *args, const char *t_val, const char *f_val, const char *cmd_prefix)
 {
   if (!args || strcmp (args, t_val) == 0)
     return 1;
@@ -2774,7 +2780,7 @@ _parse_bool_arg (char *args, char *t_val
   _parse_bool_arg (args, "on", "off", cmd_prefix)
 
 static void
-check_empty (char *args, char *cmd_prefix)
+check_empty (const char *args, const char *cmd_prefix)
 {
   if (args)
     error (_("Garbage after \"%s\" command: `%s'"), cmd_prefix, args);