Fix missing header include.

idc · idc · commit 49cf8f81688b · 2020-05-13T15:24:02.000-05:00
diff --git a/module.c b/module.c
@@ -1,3 +1,4 @@
+#include <stddef.h>
 #include <stdint.h>
 
 #include "string_data.h"
