Compile gdb7.11.1 and solve the error

During compilation , Several times error: conflicting types for The problem of , for example ：

linux-arm-low.c:272:1: error: conflicting types for ‘ps_get_thread_area’
 ps_get_thread_area (const struct ps_prochandle *ph,
 ^~~~~~~~~~~~~~~~~~
In file included from gdb_proc_service.h:30:0,
                 from linux-low.h:24,
                 from linux-arm-low.c:20:
/opt/gcc-linaro-7.3.1-2018.05-x86_64_arm-linux-gnueabihf/arm-linux-gnueabihf/libc/usr/include/proc_service.h:72:17: note: previous declaration of ‘ps_get_thread_area’ was here
 extern ps_err_e ps_get_thread_area (struct ps_prochandle *

This kind of problem is easier to solve , Redefined , Open the redefined file directly , Just comment out the redefined part .
Similar error reporting ：
proc-service.c:217:1: error: conflicting types for ‘ps_lsetfpregs’
proc-service.c:217:1: error: conflicting types for ‘ps_lsetfpregs’
arm-linux-nat.c:480:1: error: conflicting types for ‘ps_get_thread_area’
linux-arm-low.c:272:1: error: conflicting types for ‘ps_get_thread_area’

The second question is ：
gdb gdb_proc_service.h:173:9: error: unknown type name ‘gdb_fpregset_t’
stay gdb/gdb_proc_service.h in , Add the following header ：
include “gregset.h”
The content after adding is as follows ：
#ifndef GDB_PROC_SERVICE_H
#define GDB_PROC_SERVICE_H

#include <sys/types.h>
#include “gregset.h”

#ifdef HAVE_PROC_SERVICE_H