--- src/opencl_7z_fmt_plug_copy.c	2021-10-17 18:24:14.112418452 +0200
+++ src/opencl_7z_fmt_plug.c	2021-10-17 18:25:35.984598919 +0200
@@ -40,6 +40,8 @@
 #include "config.h"
 #include "lzma/LzmaDec.h"
 #include "lzma/Lzma2Dec.h"
+#include "johnswap.h"
+
 
 #define FORMAT_LABEL		"7z-opencl"
 #define FORMAT_NAME		"7-Zip"