Merge pull request rust-lang#3522 from JohnTitor/libc-0.2.152 

Auto merge of rust-lang#3472 - JohnTitor:release-0.2.151, r=JohnTitor Prepare release for v0.2.151 r? `@ghost`

Auto merge of rust-lang#3424 - JohnTitor:release-0.2.150, r=JohnTitor Prepare release for v0.2.150

Auto merge of rust-lang#3360 - vita-rust:release-0.2.149, r=JohnTitor Update crate version to 0.2.149 Contains fixes for net structs/calls for Vita target - rust-lang#3284 and rust-lang#3366. Required for rust-lang/socket2/pull/465

Auto merge of rust-lang#3283 - flba-eb:release_147, r=JohnTitor Update and release version 0.2.147 Please publish a new release of libc.

Auto merge of rust-lang#3266 - vita-rust:release-0.2.146, r=Amanieu Update crate version to 0.2.146 Contains a fix rust-lang#3265 for previous yanked release

Auto merge of rust-lang#3259 - vita-rust:update, r=JohnTitor Update crate version to 0.2.145 rust-lang#3255 is a prerequisite for rust-lang/rust#111819

Auto merge of rust-lang#3239 - GuillaumeGomez:update, r=JohnTitor Update crate version to 0.2.144 Please make a new release so I can use the new constants I added for macOS. :) r? `@Amanieu`

Auto merge of rust-lang#3236 - JohnTitor:release-0.2.143, r=JohnTitor Release 0.2.143 Fixes rust-lang#3234