reported upstream: http://lists.freedesktop.org/archives/xcb/2011-June/007095.html

diff -ru libxcb-1.7.orig/configure.ac libxcb-1.7/configure.ac
--- libxcb-1.7.orig/configure.ac	2011-06-08 09:12:30 +0200
+++ libxcb-1.7/configure.ac	2011-06-08 09:54:49 +0200
@@ -72,6 +72,8 @@
 AC_SEARCH_LIBS(getaddrinfo, socket)
 AC_SEARCH_LIBS(connect, socket)
 
+AC_CHECK_FUNC(getaddrinfo, [AC_DEFINE(HAVE_GETADDRINFO, 1, [getaddrinfo() function is available])], )
+
 case $host_os in
 linux*)
 	AC_DEFINE([HAVE_ABSTRACT_SOCKETS], 1, [Define if your platform supports abstract sockets])
diff -ru libxcb-1.7.orig/src/xcb_auth.c libxcb-1.7/src/xcb_auth.c
--- libxcb-1.7.orig/src/xcb_auth.c	2011-06-08 09:12:30 +0200
+++ libxcb-1.7/src/xcb_auth.c	2011-06-08 09:54:49 +0200
@@ -33,6 +33,12 @@
 #include <sys/param.h>
 #include <unistd.h>
 #include <stdlib.h>
+#include <arpa/inet.h>
+
+#ifdef __INTERIX
+/* _don't_ ask. interix has INADDR_LOOPBACK in here. */
+#include <rpc/types.h>
+#endif
 
 #include "xcb.h"
 #include "xcbint.h"
diff -ru libxcb-1.7.orig/src/xcb_util.c libxcb-1.7/src/xcb_util.c
--- libxcb-1.7.orig/src/xcb_util.c	2011-06-08 09:12:30 +0200
+++ libxcb-1.7/src/xcb_util.c	2011-06-08 09:56:23 +0200
@@ -44,6 +44,7 @@
 #include <unistd.h>
 #include <fcntl.h>
 #include <string.h>
+#include <arpa/inet.h>
 
 #include "xcb.h"
 #include "xcbext.h"
@@ -281,10 +282,12 @@
 static int _xcb_open_tcp(const char *host, char *protocol, const unsigned short port)
 {
     int fd = -1;
+#if HAVE_GETADDRINFO
     struct addrinfo hints;
     char service[6]; /* "65535" with the trailing '\0' */
     struct addrinfo *results, *addr;
     char *bracket;
+#endif
 
     if (protocol && strcmp("tcp",protocol) && strcmp("inet",protocol)
 #ifdef AF_INET6
@@ -296,6 +299,7 @@
     if (*host == '\0')
 	host = "localhost";
 
+#if HAVE_GETADDRINFO
     memset(&hints, 0, sizeof(hints));
 #ifdef AI_ADDRCONFIG
     hints.ai_flags |= AI_ADDRCONFIG;
@@ -338,6 +342,40 @@
     }
     freeaddrinfo(results);
     return fd;
+#else
+    {
+        struct hostent* _h;
+        struct sockaddr_in _s;
+        struct in_addr ** _c;
+
+        if((_h = gethostbyname(host)) == NULL)
+            return -1;
+
+        _c = (struct in_addr**)_h->h_addr_list;
+        fd = -1;
+
+        while(*_c) {
+            _s.sin_family = AF_INET;
+            _s.sin_port = htons(port);
+            _s.sin_addr = *(*_c);
+
+            fd = _xcb_socket(_s.sin_family, SOCK_STREAM, 0);
+            if(fd >= 0) {
+                int on = 1;
+                setsockopt(fd, IPPROTO_TCP, TCP_NODELAY, &on, sizeof(on));
+                setsockopt(fd, SOL_SOCKET, SO_KEEPALIVE, &on, sizeof(on));
+
+                if(connect(fd, (struct sockaddr*)&_s, sizeof(_s)) >= 0)
+                    break;
+                close(fd);
+                fd = -1;
+            }
+            ++_c;
+        }
+
+        return fd;
+    }
+#endif
 }
 
 static int _xcb_open_unix(char *protocol, const char *file)