build failure with gcc 4.3.5 about re HOT 1 CLOSED

When looking in src/sa/sa.c, which compiles we have:

#ifndef WIN32
#include <arpa/inet.h>
#define __USE_POSIX 1  /**< Use POSIX flag */
#define __USE_XOPEN2K 1/**< Use POSIX.1:2001 code */
#define __USE_MISC 1
#include <netdb.h>
#endif

Using same snippet for client.c and also net.c then re compiles successfully.

rt.c doesn't define __USE_XOPEN2K. Do we need this for the other netdb.h includes?

I tried also without __USE_XOPEN2K and without __USE_MISC in net.c and dns/client.c with gcc 4.3.5. It compiles. I will open a PR for discussion.

from re.