Merge pull request #1642 from dfoxfranke/sys-timex

libc-test/build.rs

src/unix/bsd/apple/mod.rs

src/unix/bsd/freebsdlike/mod.rs

src/unix/bsd/netbsdlike/netbsd/mod.rs

src/unix/linux_like/linux/gnu/mod.rs

src/unix/solarish/mod.rs