--- src/libs/utils/process_stub_unix.c.o	2009-05-07 23:40:17.000000000 -0400
+++ src/libs/utils/process_stub_unix.c	2009-05-07 23:40:30.000000000 -0400
@@ -39,6 +39,7 @@
 #include <stdlib.h>
 #include <stdio.h>
 #include <errno.h>
+#include <signal.h>
 
 extern char **environ;
 
