Re: [bug-gnulib] Re: [patch] Handle alternative getnameinfo() prototype

[Bruno Haible]

Paul Eggert wrote:
> It's a bit weird, though, that Tru64 has getnameinfo declared but
> getaddrinfo is not defined.  Is that correct, or am I missing
> something?

OSF/1 4.0 declares neither getnameinfo nor getaddrinfo.

OSF/1 5.1 declares both in <netdb.h> but has this:

#if defined (_SOCKADDR_LEN) || defined (_XOPEN_SOURCE_EXTENDED)
#define getaddrinfo ngetaddrinfo
#else
#define getaddrinfo ogetaddrinfo
#endif

$ nm /shlib/libc.so | grep getaddrinfo
__ngetaddrinfo                   | 0004395900724800 | T | 0000000000000008
__ogetaddrinfo                   | 0004395900725760 | T | 0000000000000008
ngetaddrinfo                     | 0004395900724800 | T | 0000000000000008
ogetaddrinfo                     | 0004395900725760 | T | 0000000000000008

So, you need to #include <netdb.h> in order to test whether getaddrinfo
exists.

Bruno