--- poll.h_ori	2011-04-21 08:06:19.625000000 +0200
+++ poll.h	2011-04-21 08:05:54.968750000 +0200
@@ -13,6 +13,7 @@
 
 #include <sys/cdefs.h>
 #include <sys/types.h>
+#include <signal.h>
 
 __BEGIN_DECLS