Merge pull request rust-lang#3682 from madsmtm/new-version

Update version to `0.2.155`

Merge pull request rust-lang#3573 from Dirreke/update-libc0.2

update crate version to 0.2.154

Merge pull request rust-lang#3554 from GuillaumeGomez/update-0.2

Backport of rust-lang#3546 and update crate version to 0.2.153

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