diff -urN gcc-5.3.0.orig/libcc1/connection.cc gcc-5.3.0/libcc1/connection.cc
--- gcc-5.3.0.orig/libcc1/connection.cc	2015-12-19 14:40:20.860479600 +0000
+++ gcc-5.3.0/libcc1/connection.cc	2015-12-20 01:31:04.346611500 +0000
@@ -21,6 +21,7 @@
 #include <string>
 #include <unistd.h>
 #include <sys/types.h>
+#include <sys/select.h>
 #include <string.h>
 #include <errno.h>
 #include "marshall.hh"