Fix the #include order for config.h.
Add #include "config.h" directives where needed.

windows/x11drv/clipboard.c

diff --git a/windows/x11drv/clipboard.c b/windows/x11drv/clipboard.c
index 8cf9994..4dcd92c 100644
--- a/windows/x11drv/clipboard.c
+++ b/windows/x11drv/clipboard.c
@@ -45,7 +45,7 @@
  *
  */
 
-#include "ts_xlib.h"
+#include "config.h"
 
 #include <string.h>
 #include <stdio.h>
@@ -53,6 +53,7 @@
 #include <unistd.h>
 #include <fcntl.h>
 
+#include "ts_xlib.h"
 #include "winreg.h"
 #include "clipboard.h"
 #include "win.h"