| Bugfix | |
| * In library/net_sockets.c, _POSIX_C_SOURCE and _XOPEN_SOURCE are | |
| defined to specific values. If the code is used in a context | |
| where these are already defined, this can result in a compilation | |
| error. Instead, assume that if they are defined, the values will | |
| be adequate to build Mbed TLS. |