[lwIP] the errno definition of rt_libc.h is used by default.
#define S32_F "ld"
#define X32_F "lx"
-#ifdef RT_USING_LIBC
-#if defined(__CC_ARM) || defined(__CLANG_ARM) || defined(__IAR_SYSTEMS_ICC__)
-#include <sys/errno.h>
-#else
-#include <errno.h>
-/* some errno not defined in newlib */
-#define ENSRNOTFOUND 163 /* Domain name not found */
-/* WARNING: ESHUTDOWN also not defined in newlib. We chose
- 180 here because the number "108" which is used
- in arch.h has been assigned to another error code. */
-#define ESHUTDOWN 180
-#endif /* __CC_ARM/__IAR_SYSTEMS_ICC__ */
-#else
-#define LWIP_PROVIDE_ERRNO
-#endif
-
#if defined(RT_USING_LIBC) || defined(RT_USING_MINILIBC)
#include <sys/time.h>
#define LWIP_TIMEVAL_PRIVATE 0
