futimens() not provided on macos 10.11

[jakwings]

I bumped right into this problem when I ran zig build ....

zig/lib/std/os.zig

Line 2685 in 543e729

switch (errno(system.futimens(fd, times))) {

zig/lib/std/fs/file.zig

Lines 272 to 291 in 543e729

	/// `atime`: access timestamp in nanoseconds
	/// `mtime`: last modification timestamp in nanoseconds
	pub fn updateTimes(self: File, atime: i64, mtime: i64) UpdateTimesError!void {
	if (windows.is_the_target) {
	const atime_ft = windows.nanoSecondsToFileTime(atime);
	const mtime_ft = windows.nanoSecondsToFileTime(mtime);
	return windows.SetFileTime(self.handle, null, &atime_ft, &mtime_ft);
	}
	const times = [2]os.timespec{
	os.timespec{
	.tv_sec = @divFloor(atime, std.time.ns_per_s),
	.tv_nsec = @mod(atime, std.time.ns_per_s),
	},
	os.timespec{
	.tv_sec = @divFloor(mtime, std.time.ns_per_s),
	.tv_nsec = @mod(mtime, std.time.ns_per_s),
	},
	};
	try os.futimens(self.handle, &times);
	}

Is this a strict requirement, and btw what is the minimum version of macos supported by the zig toolchain?

I replaced it with futimes (microsecond precision) and all compiler tests passed.

(maybe related? #1907)

[andrewrk]

https://ziglang.org/#Support-Table

10.13 is the current minimum

[andrewrk]

I understand how unsatisfying it is to file your first issue and have it closed immediately.

Unfortunately, macOS has proven to be the most problematic operating system to support. It would be a difficult case to make to increase the supported version range on top of this. I also think it is unreasonable to support a version of the OS that Apple doesn't even support.

[jakwings]

No problem! Luckily by some little tweaks I can have fun with the latest zig while evaluating the latest osx. :)

Anyway, thanks for the hard work!!