Matthew Selsky via devel <[email protected]>: > We added the STA_NANO checks to support systems that have some STA_ > symbols, but not all. See > https://lists.ntpsec.org/pipermail/vc/2017-December/003604.html
In particular, some of our targets (some BSDs, I don't remember which) have only microsecond, not nanosecond resolution in the clock-adjustment calls. > We'd have to survey the platforms that we care about to see if they > have these symbols now. No, actually, we *don't* need to make that effort. I've already solved this problem. It was some work getting the code to work at both scales, but I did it and confined the differences to small sections conditionalized by STA_NANO. The moment one of those oddball platforms ups its resolution it will also set STA_NANO, then all our stuff will Just Work on the next compile. Since this is a user-visible API break, it ain't going to happen on a minor OS point release and is unlikely to happen at all without loud public warnings. I know it sounds odd to say this, but this is really not our problem; it's up to the BSD Ports people (the analog of Linux distro integrators) to do the right thing downstream of us. > https://docs.ntpsec.org/latest/#platforms doesn't give many specifics on what > platforms we support. That's because our actual support target is this: This software should build on any operating system conformant to POSIX.1-2001 and ISO/IEC 9899:1999 (C99). In addition, the operating system must have an ntp_adjtime(2) call. Also, it must support the IPv6 API defined in RFC 2493 and RFC 2553. Finally, it must support iterating over active UDP interfaces via getifaddrs(3) or some equivalent facility. There is some point in listing known-good platforms (Linux is the biggie), but no point in trying to be exhaustive about it, because anybody with enough chops to build this on a Unix variant we don't know about is necessarily clued in enough to apply this creterion themselves. -- <a href="http://www.catb.org/~esr/";>Eric S. Raymond</a> My work is funded by the Internet Civil Engineering Institute: https://icei.org Please visit their site and donate: the civilization you save might be your own. _______________________________________________ devel mailing list [email protected] http://lists.ntpsec.org/mailman/listinfo/devel
