1 files changed, 4 insertions, 3 deletions
diff --git a/libxcb/src/xcb_auth.c b/libxcb/src/xcb_auth.c
index 29e2b6f84..de628a6e4 100644
--- a/libxcb/src/xcb_auth.c
+++ b/libxcb/src/xcb_auth.c
@@ -265,13 +265,14 @@ static int compute_auth(xcb_auth_info_t *info, Xauth *authptr, struct sockaddr *
 /* `sockaddr_un.sun_path' typical size usually ranges between 92 and 108 */
 #define INITIAL_SOCKNAME_SLACK 108
 
+#ifndef WIN32
+typedef int (*LPFN_GETPEERNAME)(int,struct sockaddr *,socklen_t *);
+#endif
 /* Return a dynamically allocated socket address structure according
    to the value returned by either getpeername() or getsockname()
    (according to POSIX, applications should not assume a particular
    length for `sockaddr_un.sun_path') */
-static struct sockaddr *get_peer_sock_name(int (*socket_func)(int,
-                                                              struct sockaddr *,
-                                                              socklen_t *),
+static struct sockaddr *get_peer_sock_name(LPFN_GETPEERNAME socket_func,
                                            int fd)
 {
     socklen_t socknamelen = sizeof(struct sockaddr) + INITIAL_SOCKNAME_SLACK;