Myrddin 0.2.2

This release solves build issues when using llvm linker (lld). It fixes alignment so that the linker will accept the assembly that we generate.

Myrddin 0.2.1

This is a point release. It should have no user-visible changes on existing platforms, but it brings in full OpenBSD 6.3 support. This consists of two major things:

- Generating the system call tables for sys+openbsd:6.3-x64.myr. Not
  too much changed (mostly pledge stuff, as far as I can tell), but
  it's worth doing.

- Adding support for MAP_STACK mmap flags in libthread. For the sake
  of security, OpenBSD is starting to require that the stack pointer
  point to memory that is mapped with MAP_STACK.

Myrddin 0.2: "9 out of 10 cats agree"

Myrddin 0.2 has been released. This release was focused on filing off the sharp edges shipped with the previous release. But not to worry, there are still plenty of stabby bits left for the masochists.

9 out of 10 cats

Major highlights since 0.1

$ git diff --stat r0.1.1..HEAD | tail -n 1
265 files changed, 26195 insertions(+), 7080 deletions(-)
$ git log --pretty=oneline r0.1.1..HEAD | wc -l
332

Bug fixes and bug fixes and bug fixes.
Performance has improved overall.
Rudimentary GDB line number support.
Rudimentary Plan 9 Acid debugger support.
Murmurhash has been replaced with siphash
Libhttp is shipped by default
Libbio allows arbitrary, user-defined backing stores
Partial NetBSD support
Mbld builds are parallel, and performance is competitive with ninja.
Mbld supports benchmarking via mbld bench.
Mbld build tags may now be versioned.
Type errors indicate where the sources of the conflicting types.
An initial look at scoped resoure management, via auto.
The ability to request a function by trait using impl statements.
A complete rewrite of trait resolution, which fixes many known bugs.
Full system call coverage on Linux, FreeBSD, OpenBSD, and Plan 9.
Buffered IO now supports non-file I/O
For loops now use : in place of in
signal() is no longer flaky on linux.
DNS resolution is far more robust.
Fix several instances of miscompilation.
Allow duping closures without memory allocations.
Allow race-free access to the environment within thread spawning
Fix DNS for cname records.
Libthread uses futexes on OpenBSD 6.2

Breaking Changes

std.Ordonly and std.Owronly have been named to std.Oread and std.Owrite.
for x in y became for x : y. It's only a warning right now, but it will break your code soon.
Sigpipe is no longer handled by default.
readv and writev now use iovec structs instead of slices.
Solsock is now called Solsocket, and it's type changed to match getsockopt.
Output no longer clutters the source directory, but instead goes into obj/.
The std.listen API has been merged with std.accept.
mbld test no longer impliciltly adds files to the test build.
Custom hash functions return int64, not int32.
Several unnecessary options (-d, -l, -C, -M) were removed from mbld.

New External Libraries and Programs

Yep, there's code thats not part of the main Myrddin distribution.

Libtermdraw: A library for doing curses-like drawing on the terminal.
Mparse: A library written in Myrddin, that parses Myrddin.
irc.myr: A simple IRC client, reminiscent of irssi.
Sergen: A crude reinvention of protobufs/thrift.
Libwl: A wayland client library.
ddmin: A tool for paring down a large testcase into a minimal one.

Endorsements

"Fine, it's a good language. Now will you get out of the bathroom and let me shit in peace?" -- Charles Babbage

"Make Programming Great Again" -- Barack Obama

"I think it's gluten free" -- Anonymous

"Back Off! Those are MY dentures!" -- Mom

Thanks to the contributors

In no particular order:

Quentin Carbonneaux, for good discussion and implementing auto.
Michael Forney, for bug fixes, code cleanup, and impl statements.
Andrew Chambers, for testing, bug reports, and ddmin.
Lucas Gabriel Vuotto, for bug fixes, testing, and siphash.
Ryan Gonzalez, for bug fixes and code cleanup.
Carlin Bingham, for fixing some OpenBSD system calls.
Kamil Rytarowski, for the initial work on NetBSD.
Roberto E. Vargas Caballero, for ideas, and collaboration on tools.
S. Gilles, for testing, bug reports, and patches.
Everyone else who complained about my incompetence.

Packages and Installation

Myrddin 0.2 is being packaged for supported systems. Some of them may be behind, as packagers finish putting together updated packages.

It is also easy to install from source.

From Git

Myrddin is a young language. There are regular fixes to the language and libraries. Therefore, it's probably a good idea to install it from Git. To install Myrddin from source:

$ git clone git://git.eigenstate.org/ori/mc.git
$ cd mc
$ ./configure --prefix=/usr
# On BSD, use gmake
$ make
$ sudo make install

From Tarballs

Tarballs of this release are also available

Mac OSX

There is a brew tap for OSX. If you have Homebrew installed, here is how you can use it to install Myrddin:

$ brew install oridb/myrddin/myrddin

FreeBSD

The port for Myrddin is in the FreeBSD ports tree. You can install it using:

# pkg install myrddin

OpenBSD

The port for Myrddin is in the OpenBSD ports tree. You can install it using:

# pkg_add myrddin

Plan 9 (9front)

Because Mercurial is the version control mechanism for Plan 9, there is a mirror of the repository on Bitbucket. To install it:

% hg clone https://bitbucket.org/oridb/mc
% cd mc
% mk
% mk install

Supported Platforms

The 0.2 release comes with an amd64 compiler. The supported platforms are Linux, OSX, FreeBSD, OpenBSD, and Plan9. There is partial support for NetBSD.