+\fBMONO_LOG_DEST\fR
+Controls where trace log messages are written. If not set then the messages go to stdout.
+If set, the string either specifies a path to a file that will have messages appended to
+it, or the string "syslog" in which case the messages will be written to the system log.
+Under Windows, this is simulated by writing to a file called "mono.log".
+\fBMONO_LOG_HEADER\fR
+Controls whether trace log messages not directed to syslog have the id, timestamp, and
+pid as the prefix to the log message. To enable a header this environment variable need
+just be non-null.
+.TP