#define ENV_VERBOSE_FILE "RMR_VCTL_FILE" // file where vlevel may be managed for some (non-time critical) functions
#define ENV_NAME_ONLY "RMR_SRC_NAMEONLY" // src in message is name only
#define ENV_WARNINGS "RMR_WARNINGS" // if == 1 then we write some, non-performance impacting, warnings
+#define ENV_SRC_ID "RMR_SRC_ID" // forces this string (adding :port, max 63 ch) into the source field; host name used if not set
#define NO_FLAGS 0 // no flags to pass to a function