Make sure stdlib.h is always included before dmalloc.h to avoid problems
parsing problems.
diff --git a/include/libbb.h b/include/libbb.h
index 86e4fbe..15e3e49 100644
--- a/include/libbb.h
+++ b/include/libbb.h
@@ -25,6 +25,7 @@
 #define	__LIBCONFIG_H__    1
 
 #include <stdio.h>
+#include <stdlib.h>
 #include <stdarg.h>
 #include <sys/stat.h>
 #include <sys/types.h>