http://bugs.gentoo.org/425596

--- proctools/process.cc
+++ proctools/process.cc
@@ -8,6 +8,8 @@
 #include <cerrno>
 #include <sys/types.h>
 #include <sys/wait.h>
+#include <sys/time.h>
+#include <sys/resource.h>
 #include <unistd.h>
 
 namespace proctools