diff -rupN lash-0.5.4.old/liblash/lash.c lash-0.5.4/liblash/lash.c
--- lash-0.5.4.old/liblash/lash.c	2007-03-09 10:34:40.000000000 -0500
+++ lash-0.5.4/liblash/lash.c	2012-07-22 18:17:46.003963521 -0400
@@ -22,6 +22,7 @@
 #include <string.h>
 #include <strings.h>
 #include <pthread.h>
+#include <sys/resource.h>
 #include <sys/types.h>
 #include <sys/wait.h>
 #include <sys/socket.h>