http://cvsweb.openbsd.org/cgi-bin/cvsweb/src/sys/sys/sysctl.h?rev=1.162&content-type=text/x-cvsweb-markup
http://cvsweb.openbsd.org/cgi-bin/cvsweb/src/sys/sys/sysctl.h.diff?r1=1.161&r2=1.162

Add prelimenary wasm32 support

For the moment there's nothing different about the emscripten libc implementations for asmjs and wasm32.

mips: add SO_REUSEPORT

Which is required to cross compile the net2 crate. Which, in turn, is required to cross compile Cargo.

r? @alexcrichton

add support for s390x

tested by running libc-test on real s390x hardware.

r? @alexcrichton

added getchar and putchar

Not sure why they were not in the repo until now, but they are both part of POSIX.1-2008: [getchar](http://pubs.opengroup.org/onlinepubs/9699919799/functions/getchar.html), [putchar](http://pubs.opengroup.org/onlinepubs/9699919799/functions/putchar.html)

mips64: define SIGSTKSZ

r? @alexcrichton

Add CI for mipsel-unknown-linux-musl

Download a trunk OpenWRT toolchain and verify bindings against that. Also fixup
a few stray errors today

Download a trunk OpenWRT toolchain and verify bindings against that. Also fixup
a few stray errors today

add initial support for mips64

just enough to be able to cross compile std for the mips64-gnu targets

tested by running libc-test for mips64-unknown-linux-gnuabi64

r? @alexcrichton

Add lutimes

Add lutimes except for openbsd, solaris, android

Add more architectures to libc-test

* `i686-unknown-linux-musl`
* `powerpc-unknown-linux-gnu`
* `powerpc64-unknown-linux-gnu`

cc @japaric
cc https://github.com/rust-lang/rust/issues/36006

just enough to be able to cross compile std for the mips64-gnu targets

tested by running libc-test for mips64-unknown-linux-gnuabi64

Use the standard mips compilers from Ubuntu now

Add missing consts on Solaris

Corrects signedness of c_char for Linux musl Aarch64 & ppc64.

Add sem_timedwait for unix platforms

We can almost implement synchronization mechanisms in pure-rust using
pthread semaphores as the primitive but sem_timedwait is necessary for
implementing timeout-based functions.

Add some macros from sched.h for android and linux.

I duplicated the code for android, because the member of cpu_set_t
is private, thus cannot be accessed in the parent mod. I would have
had to configure the name anyway based on the platform, because it
differs between the platforms.

add missing (common) iff constants

Move a few scheduling related functions from linux to notbsd.