syslog is pretty standard at least on Linux. Would be nice to see support for that.
I see that DefaultLogger writes to stdout. Looks like you just need a SyslogLogger that writes to syslog. This looks promising: https://github.com/dlang/druntime/blob/master/src/core/sys/posix/syslog.d
UPDATE LINK: https://github.com/dlang/dmd/blob/master/druntime/src/core/sys/posix/syslog.d
syslog is pretty standard at least on Linux. Would be nice to see support for that.
I see that DefaultLogger writes to stdout. Looks like you just need a SyslogLogger that writes to syslog. This looks promising: https://github.com/dlang/druntime/blob/master/src/core/sys/posix/syslog.d
UPDATE LINK: https://github.com/dlang/dmd/blob/master/druntime/src/core/sys/posix/syslog.d