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-rw-r--r--src/config-win32.h14
1 files changed, 14 insertions, 0 deletions
diff --git a/src/config-win32.h b/src/config-win32.h
index c32ab1717..61471a323 100644
--- a/src/config-win32.h
+++ b/src/config-win32.h
@@ -244,6 +244,20 @@
# endif
#endif
+/* Availability of freeaddrinfo, getaddrinfo and getnameinfo functions is quite */
+/* convoluted, compiler dependant and in some cases even build target dependat. */
+#if defined(HAVE_WS2TCPIP_H)
+# if defined(_MSC_VER) && (_MSC_VER >= 1200)
+# define HAVE_FREEADDRINFO 1
+# define HAVE_GETADDRINFO 1
+# define HAVE_GETNAMEINFO 1
+# elif defined(__MINGW32__) && defined(_WIN32_WINNT) && (_WIN32_WINNT >= 0x0501)
+# define HAVE_FREEADDRINFO 1
+# define HAVE_GETADDRINFO 1
+# define HAVE_GETNAMEINFO 1
+# endif
+#endif
+
/* ---------------------------------------------------------------- */
/* LARGE FILE SUPPORT */
/* ---------------------------------------------------------------- */