add stddef header converter header for type

diff --git a/src/kds_s2000w_image_converter.h b/src/kds_s2000w_image_converter.h
index 20af3a6565c0057efeebe2f7f3a788f91b236154..2e36d2bfbf8c6101d111442b6c845d00be4a84e7 100644 (file)
--- a/src/kds_s2000w_image_converter.h
+++ b/src/kds_s2000w_image_converter.h
@@ -1,5 +1,6 @@
 #ifndef KDS_S2000W_IMAGE_CONVERTER_H
 #define KDS_S2000W_IMAGE_CONVERTER_H
+#include <stddef.h>
 
 typedef struct {
        size_t size;