+#define GRAS_PROTOCOL_VERSION '\2';
+/* The difference between GRAS_PROTOCOL_VERSION=\1 (in SimGrid 3.6.1) and \2 (afterward) is that
+ the architectures were renumbered (GRAS_THISARCH were shifted by 1) to insert WIN64 near to WIN32.
+ See commit 27cbb00affed384593925fc5af6d5533d0a7ef09 */