This bug was never diagnosed.  Perhaps it's been resolved by a newer
compiler.
Fixes #856

DragonflyBSD does define 3 of these 14 functions.  But I elected not to
add it to the PR because I can't find any evidence that these syscalls
are used on Dragonfly, even in the base system.  And by themselves,
those three are insufficient for the xattr crate.

Add CMSG macros for unix/bsd and unix/notbsd

This adds the ["Ancillary Data Object Macros" from RFC 2292](https://tools.ietf.org/html/rfc2292#section-4.3). My C's weak but I think I've translated them faithfully. Tested on macOS and Linux/glibc.

update osx builds to xcode10

remove the iOS simulator targets from CI / update ctest

exclude CI files from crates.io

Finish correcting ioctl(2) interfaces on musl/ppc64

Last commit fixed the function definition but not the constants.  Oops.

Last commit fixed the function definition but not the constants.  Oops.

update ctest version

Added dup3() support on FreeBSD, NetBSD, OpenBSD and Solaris

Added `dup3()` support on FreeBSD, NetBSD, OpenBSD and Solaris.

The `dup3()` API is present in:
- FreeBSD 10.0 an later.
- NetBSD 6.0 and later.
- OpenBSD 5.7 and later.
- Solaris 11.4 and later.

Correct ioctl(2) interface definition for musl/ppc64

Add TIOCGRS485 and TIOCSRS485 for musl #1094

I need help with adding `TIOCSRS485` and `TIOCSRS485` constants to libc.

Add truncate(2) to Unix platforms

Add acct(2) to BSD module

The `acct` syscall is supported on BSD platforms, the PR aims to add it to the BSD module.

This patch removes the x86_64-rumprun-netbsd triple from Travis CI.

Arch specific ptrace commands for BSDs

This PR is to add architecture specific ptrace requests etc.

Don't merge this yet if it passes I want to go over the other BSDs and architectures to see if I've missed anything I'm just creating the PR to get that initial CI approval that it's right as I expect this bit to be more fiddly.

Add ptrace for non-apple BSDs

So yesterday I did a PR for ptrace for apple, I've now gone through the ptrace header files for the other BSDs supported by libc and added ptrace + constants for all of them.

Given the lack of ptrace in any of them I don't know if the test has to be changed at all for the new functions so I'll tackle any CI errors that come up if and as they appear.

* Added ptrace and constants for all freebsdlike and netbsdlike OSs

Added ptrace constants for apple

I noticed the ptrace constants were missing for apple so I've added them referencing this [header](https://opensource.apple.com/source/xnu/xnu-792.13.8/bsd/sys/ptrace.h). This doesn't add any new functions just constants so I haven't added any tests which seems to be correct.