Version 0.3.31

* Added a lot of functions to ltrace.conf,
  thanks to Jakub Jelinek <jakub@redhat.com>    (closes: Bug#144518)
* Fixed off-by-one problem in checking syscall number
* Removed some warnings
diff --git a/execute_program.c b/execute_program.c
index 6efc03c..09db44a 100644
--- a/execute_program.c
+++ b/execute_program.c
@@ -3,6 +3,7 @@
 #endif
 
 #include <stdio.h>
+#include <stdlib.h>
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <unistd.h>