[lwip-users] lwip_provide_errno

[Dmitri Snejko]

Hello,

In arch.h there is a section:

#ifdef LWIP_PROVIDE_ERRNO
// errno codes
#endif /* LWIP_PROVIDE_ERRNO */

which defines  unix errno codes used later in socket library.  To  
switch  it on  lwipopts.h  should have #define LWIP_PROVIDE_ERRNO.
But it doesn't  reference to anything else if CLIB already has its own 
errno which could cause compilation problems. I think this definition  
should be changed:

#ifdef LWIP_PROVIDE_ERRNO
// errno codes
#else
 #include <errno.h>
#endif /* LWIP_PROVIDE_ERRNO */

Regards, Dmitri