gai_strerror
============

POSIX specification:
 http://www.opengroup.org/onlinepubs/9699919799/functions/gai_strerror.html

Gnulib module: getaddrinfo

Portability problems fixed by Gnulib:

  * This function is missing on some platforms: HP-UX 11.11, IRIX 6.5, OSF/1 4.0, Solaris 7, Cygwin 1.5.x, Interix 3.5, BeOS.

  * This function is only available in <ws2tcpip.h> on some platforms: mingw.

  * This function's return type is char * instead of const char * on some platforms: AIX 7.1, HP-UX 11, OSF/1 5.1, Solaris 9, mingw.

Portability problems not fixed by Gnulib: