23 lines
872 B
C
23 lines
872 B
C
/* Copyright (c) Kuba Szczodrzyński 2022-06-13. */
|
|
|
|
#pragma once
|
|
|
|
// This is an attempt to bring at least some order to <errno.h>, as
|
|
// it's generally a source of problems everywhere.
|
|
// The idea is that all units will try to import this errno.h first,
|
|
// which means it won't use lwIP's error codes.
|
|
// The code below was moved from realtek-ambz/fixups during
|
|
// porting of BK72XX SDK, when the errno stroke again.
|
|
|
|
// There are two different errno's:
|
|
// - first is just an int
|
|
// - second is a macro that calls __errno()
|
|
// Here the first option is ensured in the entire project.
|
|
#include <sys/errno.h> // use system __errno() & error codes
|
|
#undef errno // undefine __errno() macro
|
|
extern int errno; // use a global errno variable
|
|
#define errno errno // for #ifdef errno in lwIP
|
|
|
|
// make sure lwIP never defines its own error codes
|
|
#undef LWIP_PROVIDE_ERRNO
|