| @node Windows sockets | |
| @section Windows sockets | |
| One of the portability problems for native Windows are sockets and | |
| networking functions. | |
| @subsection Getaddrinfo and WINVER | |
| @mindex getaddrinfo | |
| This was written for the @code{getaddrinfo} module, but may be applicable to | |
| other functions too. | |
| The @code{getaddrinfo} function exists in @code{ws2tcpip.h} and @code{-lws2_32} | |
| on Windows XP@. The function declaration is present if @code{WINVER >= 0x0501}. | |
| Windows 2000 does not have @code{getaddrinfo} in its @file{WS2_32.DLL}. | |
| Thus, if you want to assume Windows XP or later, you can add | |
| @code{AC_DEFINE([WINVER], [0x0501])} to avoid compiling the (partial) | |
| @code{getaddrinfo} implementation. | |
| If you want to support Windows 2000, don't do anything. The | |
| replacement function will open @file{WS2_32.DLL} during run-time to | |
| see if there is a @code{getaddrinfo} function available, and use it when | |
| available. |