debug: include stdlib

diff --git a/orc/orcdebug.h b/orc/orcdebug.h
index fe09605..3faaecf 100644 (file)
--- a/orc/orcdebug.h
+++ b/orc/orcdebug.h
@@ -30,6 +30,7 @@
 
 #include <stdarg.h>
 #include <orc/orcutils.h>
+#include <stdlib.h>
 
 ORC_BEGIN_DECLS