Index: tests/ce-server.c
===================================================================
--- tests/ce-server.c
+++ tests/ce-server.c
@@ -33,6 +33,7 @@
 #else
 # include <sys/types.h>
 # include <sys/socket.h>
+# include <sys/select.h>
 # include <netinet/in.h>
 # include <arpa/inet.h>
 #endif