define IN6_ARE_ADDR_EQUAL macro for WIN32

Windows headers do not define the IN6_ARE_ADDR_EQUAL macro. It needs
to be defined locally when building for WIN32.

Signed-off-by: Heiko Hund <heiko.hund@sophos.com>
Acked-by: Gert Doering <gert@greenie.muc.de>
Signed-off-by: David Sommerseth <davids@redhat.com>

1 files changed, 6 insertions, 0 deletions

diff --git a/win32.h b/win32.h
index 528af6c..5b18e3c 100644
--- a/win32.h
+++ b/win32.h
@@ -41,6 +41,12 @@
  * development environment.
  */
 
+/* MSVC headers do not define this macro, so do it here */
+#ifndef IN6_ARE_ADDR_EQUAL
+#define IN6_ARE_ADDR_EQUAL(a,b) \
+  (memcmp ((const void*)(a), (const void*)(b), sizeof (struct in6_addr)) == 0)
+#endif
+
 void init_win32 (void);
 void uninit_win32 (void);