lang/rust: Update to 1.29.0

Release notes:
* https://blog.rust-lang.org/2018/07/20/Rust-1.27.2.html
* https://blog.rust-lang.org/2018/08/02/Rust-1.28.html
* https://blog.rust-lang.org/2018/09/13/Rust-1.29.html

Up to and including Rust 1.27.x, the Rust build system shelled out to
a configure script to detect the presence and usability of libunwind.
Since Rust 1.28.0, it's using a static result in a `build.rs` file and
expects libunwind to be used. It was not the case on FreeBSD so far, so
we need a patch to this `build.rs` to disable that. We still need to
study if the FreeBSD port should use libunwind and what to do with this
patch. But this problem prevented the update to Rust 1.28.0 already, so
enough delay.

Update WWW

Approved by:	portmgr (blanket)

lang/rust: Udpate checksums in libgit2-sys/.cargo-checksum.json

It was part of the initial patch from Charlie Li to support LibreSSL
2.7. However, I misread it and though he was only removing bits
which were not needed anymore (updating checksums for openssl and
openssl-sys).

Now, we update all three: libgit2-sys, openssl and openssl-sys.

PR:		226955
Submitted by:	Charlie Li <ml+freebsd@vishwin.info>
Reported by:	Charlie Li <ml+freebsd@vishwin.info>

lang/rust: Add patches to fix the build with LibreSSL 2.7

PR:		226955
Submitted by:	Charlie Li <ml+freebsd@vishwin.info>

lang/rust: Update to 1.27.1

Release notes:
* https://blog.rust-lang.org/2018/06/21/Rust-1.27.html
* https://blog.rust-lang.org/2018/07/10/Rust-1.27.1.html

Rust is marked as broken on aarch64. The reason is the bootstrap
compiler crashes currently. See PR 228892 which tracks the issue.

A patch for aarch64 is still included. It fixes the sign for unqualified
C char. This patch still needs to be upstream, but for that, the
compiler needs to work again first.

PR:		228892

lang/rust: Update to 1.26.2

Release notes:
* https://blog.rust-lang.org/2018/05/29/Rust-1.26.1.html
* https://blog.rust-lang.org/2018/06/05/Rust-1.26.2.html

lang/rust: Add `make makesum-all-archs` target

It is a helper to ease the generation of the `distinfo` file for all the
architectures we support. It avoids the manual commands.

lang/rust: Update to 1.26.0

The announcement is available on Rust blog:
https://blog.rust-lang.org/2018/05/10/Rust-1.26.html

Rust 1.25.0, used as the bootstrap compiler, contains the patch from
bdrewery@ to use the compat (non-ino64) symbols on FreeBSD 12-CURRENT.
Therefore, we don't need `old_fstat.c` and the associated machinery in
the `Makefile` anymore.

Update to 1.25.0.

- The ABI patch is no longer needed on head due to fixes being upstreamed
  to use the pre-ino64 symbols.  The ABI patch is still needed for the
  bootstrap but should be removable for 1.26.0 if it uses beta 2018-03-18.

PR:		227130 [based on]
Tested by:	dumbbell, Charlie Li
Submitted by:	riggs [based on]
Differential Revision:	https://reviews.freebsd.org/D14921 [based on]

lang/rust: Update to 1.24.1

The announcement is available on Rust blog:
https://blog.rust-lang.org/2018/03/01/Rust-1.24.1.html

There is a compilation error when it builds `clippy-driver` and `miri`
but it apparently doesn't affect the result. There are probably optional
tools/dependencies.

Update rust-nightly to 2018-03-21.

The ABI patch and bootstrap patching are no longer needed on head after
fixes fully upstreamed in https://github.com/rust-lang/rust/issues/42681.

Fix WITH_CCACHE_BUILD when using Poudriere's ccache-memcached support.

- Fix kevent on head by binding to the old ABI symbol version.
- Add some context in the patches for where they came from.  They need to be
  in 1 patch due to needing to use the .orig file for fixing up checksums.

Obtained from:	rust upstream

Support WITH_CCACHE_BUILD for bundled LLVM

Unbreak on i386/amd64 and update to 1.25.0-2018-02-19

- Stop using git to build as it is unmaintainable due to submodules,
  but more importantly because src/vendor is no longer bundled.  Just
  fetch the source already generated that has all dependencies bundled.
  It may be a bit slower to get updates but is far more maintainable.
- Copy all patches to lang/rust-nightly/files since they may not always
  apply exactly between both versions.
- Add in patch for llvm-config getting -lexecinfo wrong, this is in
  review with LLVM at https://reviews.llvm.org/D42702.
- Bring in other random updates from lang/rust.

No need to actually recompress rust-std, libarchive does the right thing

Newer versions (rust-nightly 2018-02-19) pack multiple .o files into
libstd.  We only need to patch one of them.

lang/rust: unbreak on aarch64 after r459911

gmake: Leaving directory
'.../aarch64-unknown-freebsd/release/build/rustc_binaryen-cfb76adb9420e94c/out/build'
--- stderr
c++: error: the clang compiler does not support '-march=native'
c++: error: the clang compiler does not support '-march=native'

PR:		225600
Reported by:	Gergely Czuczy, pkg-fallout
Obtained from:	upstream (binaryen 1.37.35)
Approved by:	portmgr blanket

Use https for fetching bootstrap packages

lang/rust: Update to 1.24.0

The announcement is available on Rust blog:
https://blog.rust-lang.org/2018/02/15/Rust-1.24.html

PR:		225582

lang/rust: Grep `std-$hash.*.o` name from `libstd-*.rlib`

The suffix of that file changed in recent versions of Rust and it's
changing again between Rust 1.23.0 and 1.24.0. So let's grep the
filename from the list of files contained in the ar archive.

lang/rust: Add manifest-rustfmt-preview to PLIST

This wasn't reported by a simple `poudriere bulk`, but a `poudriere
testport` revealed the problem:

    ====> Running Q/A tests (stage-qa)
    Error: 'lib/rustlib/manifest-rustfmt-preview' is referring to
/wrkdirs/usr/ports/lang/rust/work/stage
    Warning: 'bin/rustfmt' is not stripped consider trying
INSTALL_TARGET=install-strip or using ${STRIP_CMD}
    ...
    ===> Checking for items in STAGEDIR missing from pkg-plist
    Error: Orphaned: bin/rustfmt
    Error: Orphaned: lib/rustlib/manifest-rustfmt-preview

PR:		225445
Reported by:	jbeich@

lang/rust: Update to 1.23.0

Firefox 57.0 failed to build with Rust 1.23.0 with the following error:

    error: unused import: `std::ascii::AsciiExt`
      -->
/wrkdirs/usr/ports/www/firefox/work/firefox-57.0.4/servo/components/style/gecko_string_cache/mod.rs:16:5
       |
    16 | use std::ascii::AsciiExt;
       |     ^^^^^^^^^^^^^^^^^^^^
       |
    note: lint level defined here
      -->
/wrkdirs/usr/ports/www/firefox/work/firefox-57.0.4/servo/components/style/lib.rs:26:9
       |
    26 | #![deny(warnings)]
       |         ^^^^^^^^
       = note: #[deny(unused_imports)] implied by #[deny(warnings)]

Now that Firefox is updated to 58.0, the build succeeds.

lang/rust: Skip `.cargo-checksum.json` update when it's missing

Currently we need to update `.cargo-checksum.json` in several patched
crates. But those crates are missing from the sources if they come from
GitHub instead of a proper released source archive. This change makes
`post-patch` and `do-configure` recipes fine in both cases.

lang/rust: Always replace bootstrap versions in `stage0.txt`

This simplifies the `Makefile`. The condition was fragile anyway because
it was based solely on the Makefile and not the actual content of
`stage0.txt`.

lang/rust: Find libstd's suffix at runtime

... instead of hard-coding all values in the Makefile.

This eases the update of Rust.

lang/rust: Disable "omit frame pointers"

Before the patch, the default behavior of the compiler was to omit frame
pointers. However, even though it looks fine for the code produced
by the compiler, the compiler itself was broken. When there was a
compilation error, rustc panics to report that error. While handling
that panic, it tries to unwind the stack but fails to do so, which
results in an abort(3).

Here is an example:

    $ rustc hello.rs
    error: invalid reference to argument `0` (no arguments given)
     --> hello.rs:2:5
      |

lang/rust: avoid LLVM targeting SSE2 on i386 by default

This may help ports like textproc/ripgrep to run on old hardware.
Rust itself still requires SSE2 until bootstrap is regenerated.

PR:		223415
Approved by:	rust (dumbbell)

lang/rust: Remove the LLVM_PORT option

FTR, this option allowed to used LLVM from ports instead of building the
bundled copy.

The problem is that this combination isn't really tested upstream. This
led to regressions which are difficult to diagnose. For instance, in
Rust 1.21.0, the bundled LLVM provided a new API to query the features
supported by the target arch. The equivalent code inside Rust was
removed to use that new API. Unfortunately, building Rust 1.21.0+ with a
copy of LLVM not providing this API didn't failed but instead made that
list of CPU features empty. This resulted in the following obscure build
failure in Firefox:

    error[E0432]: unresolved import `x86::sse2`

To avoid future pain for both end users and maintainers, we decided to
remove that option. Yes, it will increase the (already long) time to
build Rust, but it should save time wasted on debugging what is not
really supported anyway.

PR:		223342, 223300
Reported by:	Many users

lang/rust: Update to 1.22.1

Support for LibreSSL up-to 2.6.3 is now included, thus we can remove the
patches to the `openssl` and `openssl-sys` crates.

The renewed bootstrap for aarch64 was created on 11.0-RELEASE, instead
of 11.1-STABLE. It should allow it to run on all 11.x and thus fix the
build on 11.0-RELEASE. [1]

PR:		223009 [1]

lang/rust: Add support for LibreSSL 2.6.3

Patches come from upstream:
    https://github.com/sfackler/rust-openssl

PR:		223500
Reported by:	Charlie Li <ml+freebsd-bugs@vishwin.info>

lang/rust: Fix paths in `manifest-rls-preview`

Like other manifests, without this, it still references the stage
directory. This error is reported when DEVELOPER=YES is set.

While here, strip `bin/rls`.

Reported by:	bar@, cpm@

lang/rust: Update to 1.21.0

The official bootstraps wouldn't work: rustc was stalled on a mutex
while compiling a crate early in the build. This was solved by creating
a new bootstraps for "rustc" and "rust-std" from the existing FreeBSD
package. We keep using the official "cargo" bootstrap.

PR:		223123

lang/rust: unbreak FFI for returning struct on i386

As this fixes Stylo on i386, remove the workaround in www/firefox.

PR:		223047
Suggested by:	Sebastien Marie <semarie@openbsd.org>
Approved by:	rust (dumbbell)
MFH:		2017Q4 (required by Firefox 57 scheduled on 2017-11-14)

lang/rust: Add support for LibreSSL 2.6.1 and 2.6.2

Patches come from upstream:
    https://github.com/sfackler/rust-openssl

PR:		222359
Reported by:	Charlie Li <ml+freebsd-bugs@vishwin.info>,
		Piotr Kubaj <pkubaj@anongoth.pl>,
		w.schwarzenfeld@utanet.at,
		nhoyle@hoyletech.com

lang/rust: Update to 1.20.0

This patch only upgrades the port to Rust 1.20.0. The PR also covers a
build failure with the latest LibreSSL, which is not addressed here.

PR:		222359
Reported by:	Charlie Li <ml+freebsd-bugs@vishwin.info>

lang/rust: Install Cargo + use bundled crates

This port now provides Cargo. This is the recommended now because Cargo
won't be provided separately in the future.

To build Cargo, we set `extended = true` in `config.toml`. As a side
effect, this flag also installs Rust source code. The port has a new
`SOURCES` option (disabled by default) to keep those sources.

As a consequence of this, `devel/cargo` is removed. Several ports
and Makefiles in Mk were updated to depend on `lang/rust` instead of
`devel/cargo`.

The other big change in this patch is the use of the bundled crates,
instead of relying on Cargo's registry (which was part of the distfiles,

Allow RUST_BACKTRACE to work without /proc mounted

Submitted by:	jbeich
Differential Revision:	https://reviews.freebsd.org/D11574

lang/rust: Turn off PORT_LLVM by default

This change was accidentally committed with the previous commit.

lang/rust: Fix build with PORT_LLVM

The path to `llvm-config40` was set to the empty string in the generated
`config.toml`, because I was still using the ${LLVM_PREFIX} variable
instead of the appropriate ${LLVM_CONFIG}. Bad completion and lack of
testing, sorry for that...

Reported by:	Rainer Hurling <rhurlin@gwdg.de>,
		Walter Schwarzenfeld <w.schwarzenfeld@utanet.at>,
		dim@

lang/rust: Fix ${PORT_LLVM_BUILD_DEPENDS}

The BUILD_DEPENDS argument for the PORT_LLVM option was not updated: it
was using the ${LLVM_PREFIX} variable which was removed. Now, it uses
${LOCALBASE} and ${LLVM_VER} as a suffix to the executable verified.

Submitted by:	Rainer Hurling <rhurlin@gwdg.de>
Reported by:	Rainer Hurling <rhurlin@gwdg.de>

lang/rust: Update to 1.19.0

The main change in the port is the switch from configure+make to the
`x.py` build script. This is the recommended way of building Rust. It
takes a configuration file, `config.toml`, which, in the port case,
indicates:

 * where to install things;
 * which release channel to use;
 * where to find Python and llvm-config;
 * if documentation should be also built.

The build process should now honor ${MAKE_JOBS_NUMBER} instead of always
using all available CPU cores.

lang/rust: Fix value of ${CARGO_BOOTSTRAP_DIR_aarch64}

It was pointing to the wrong directory.

Reported by:	jbeich@

lang/rust: Enable on FreeBSD/aarch64 + various fixes

This port now uses an unofficial bootstrap of Rust 1.17.0 and Cargo
0.18.0 for FreeBSD/aarch64. Here are my notes to create this boostrap:
https://gist.github.com/dumbbell/b587da50ef014078da9e732a4331ebad

The port's Makefile was changed to:
    - allow to override the versions and directories of the bootstrap
      archives;
    - patch the bootstrap script and manifest with those
      versions/directories.

Beside changes to support FreeBSD/aarch64, the port received the
following fixes:
    - Pass python path to the configure script.
    - Fix and simplify the extraction of rust-std bootstrap by re-using
      existing variables.
    - Make sure tar(1) doesn't produce sparse file entries when it
      recreates the rust-std bootstrap because Python 2's tarfile module
      doesn't support them (PR 219842).

PR:		216143, 219842
Differential Revision:	https://reviews.freebsd.org/D10857

Fix build on HEAD

Submitted by:	dim, rhurlin@gwdg.de (via mail)

Update to upstream version 1.18.0, set MAINTAINER to rust@

Fix build on pre-ino64 / on i386

Submitted by:	kib
Differential Revision:	https://reviews.freebsd.org/D10973

Fix lang/rust after ino64 src commit.

Approved by:  bapt, dumbbell
Sponsored by:	The FreeBSD Foundation
Differential revision:	https://reviews.freebsd.org/D10799

Update to upstream version 1.17.0

Submitted by:	dumbbell (see phabric URL)
Reviewed by:	riggs
Differential Revision:	https://reviews.freebsd.org/D10691

- Remove checks for .PARSEDIR and vestiges of pmake support

PR:	218832
Approved by:	portmgr (antoine)

Update to upstream version 1.16.0

lang/rust, lang/rust-nightly: Generate PLIST in post-install

Several libraries have their filename computed and based on the absolute
path to source files. Therefore, we need to generate the PLIST. Rust
installer already produces manifests listing files it installs. The port
now uses those files to complete `${TMPPLIST}`.

While the port built fine in Poudriere, it failed when built directly on
the host (regular make or with portmaster(1)) or using a different tool
such as Synth. This commit fixes the build for those methods.

Handling of DOCS-specific files is also unified with normal files. This
gets rid of code duplication.

How to do reproducible builds will be studied later.

PR:		217309
Reported by:	Several people on freebsd-ports@ or Bugzilla
Tested by:	Almost everyone who reported the issue
Approved by:	antoine (mentor), riggs (maintainer of lang/rust)
Differential Revision:	https://reviews.freebsd.org/D9816

lang/rust*: Advise users to mount procfs

Add a pkg-message to these ports advising users to mount procfs to see
backtraces.

Reviewed by:	dumbbell, riggs
Approved by:	dumbbell (ports)
Sponsored by:	Spectra Logic Corp
Differential Revision:	https://reviews.freebsd.org/D9838

lang/rust, lang/rust-nightly: Update to 1.15.1 and 1.17.0 respectively

Both versions of Rust seen changes to their build system. Now they
require a bootstrap of Cargo and thus, a snapshot of Cargo's registry.

Each library has its own suffix instead of a common suffix for a given
version of Rust. Thus all future updates of the ports will include
changes to their plist.

$DISTFILES are now all under the `rust` directory in `$DISTDIR`. A
similar change will be committed to devel/cargo later.

lang/rust-nightly is enabled on i386 (bugzilla 216143). The source
snapshot also contains everything to build it on aarch64, but enabling
it will be committed later.

PR:		216143
Approved by:	riggs, bapt (mentor), antoine (mentor)
Differential Revision:	https://reviews.freebsd.org/D9286

Remove BROKEN_FreeBSD_9

Approved by:	portmgr (blanket)

lang/rust: regenerate distinfo.x86_64 for DF rust 1.14

I'm not sure how this was misgenerated previously.  This matches the
version available via LOCAL/marino

lang/rust: Update distinfo.x86_64 for DragonFly support for v1.14

Preapproved by:	riggs

Update to upstream version 1.14.0

lang/rust: Update distinfo.x86_64 for DragonFly support for v1.13

Preapproved by:	riggs

Update to upstream version 1.13.0

Cleanup no longer needed CHMOD usage after r424898.

PR:		213743
Submitted by:	mat
Exp-run by:	antoine
Sponsored by:	Absolight

Update to upstream release 1.12.1

Release 1.12.1 is a maintenance release which fixes some
regressions in the 1.12.0 version, including memory corruption
under certain conditions. Details can be found in the release
announcement: https://blog.rust-lang.org/2016/10/20/Rust-1.12.1.html

MFH:		2016Q4

- Unconditionally verbosify build as per PHB

Approved by:	portmgr blanket

lang/rust: Update distinfo.x86_64 for DragonFly support for v1.12

Preapproved by:	riggs

Update to upstream release 1.12.0

lang/rust: Update distinfo.x86_64 for DragonFly support for v1.11

Update to upstream release 1.11.0

Fix build with non-standard PREFIX

PR:		211686
Submitted by:	mi

lang/rust-nightly: Update to 1.12.0; snapshot from 2016-07-17

Reviewed by:	asomers, jbeich, riggs
Approved by:	jbeich, riggs
Differential Revision:	https://reviews.freebsd.org/D7275

lang/rust: Update distinfo.x86_64 for DragonFly support

A custom bootstrap compiler package had to be created for DragonFly using
FreeBSD's as a model since upstream did not provide one for DF this time.

Approved by:	riggs (maintainer)

Fix build with PORT_LLVM OPTION; rust now requires LLVM 3.8

Reported by:	Kevin Oberman <rkoberman@gmail.com> via e-mail

Update to upstream version 1.10.0

Add DOCS OPTION for html docs, bump PORTREVISION

PR:		210613
Reported by:	beyert@cs.ucr.edu
Reviewed by:	riggs, marino, jbeich
Differential Revision:	https://reviews.freebsd.org/D7050

Update to upstream release 1.9.0

Make recent stage0 snapshot known to build system on DragonFly

Language changes require very recent stage0 snapshots to build
rust 1.8.0. Upstream forgot to make these snapshots known to the
build system. While this was patched for FreeBSD in r413501, it
was missed for DragonFly. This changeset fixes this.

Update to upstream version 1.8.0

While on it:
- Incorporate patch by jbeich (D5897) to allow build with gcc

Differential Revision:	https://reviews.freebsd.org/D5897

lang/rust: unbreak non-poudriere build after r412305

gmake[1]: Leaving directory '/wrkdirs/usr/ports/lang/rust/work/rustc-1.7.0'
sed:
/wrkdirs/usr/ports/lang/rust/work/stage/usr/local/lib/rustlib/manifest-rust-std-x86_64-unknown-:
No such file or directory
*** Error code 1

PR:		208527
Pointy hat:	jbeich
Tested by:	Marko Cupac <marko.cupac@mimar.rs>, pilot513@gmail.com
Approved by:	riggs (maintainer)
MFH:		2016Q2

lang/rust: enslave lang/rust-nightly

* rust: drop no longer used RUST_SOURCE variable
* rust: apply rust-nightly FIXME comment about stage-qa (strip)
* rust-nightly: properly conflict for install with rust package
* rust-nightly: inherit |make test| support from r401025
* rust-nightly: as DOCSDIR is the same drop unnecessary DOCS option

Approved by:	riggs, dumbbell (maintainers)
Differential Revision:	https://reviews.freebsd.org/D5789

Remove ${PORTSDIR}/ from dependencies, categories h, i, j, k, and l.

With hat:	portmgr
Sponsored by:	Absolight

lang/rust: apply minor style

- Fix MIT view for LICENSES_ASK=1
- Convert BROKEN to new syntax
- Concatenate find(1) arguments and drop unnecessary `cd`

lang/rust: unblock DragonFly build

=> rust-stage0-.tar.bz2 doesn't seem to exist in /portdistfiles/.
=> Attempting to fetch
http://static.rust-lang.org/stage0-snapshots/rust-stage0-.tar.bz2
fetch: http://static.rust-lang.org/stage0-snapshots/rust-stage0-.tar.bz2: Not
Found

Reported by:	muscles.dragonflybsd.org
Approved by:	portmgr "just fix it" blanket

Fix staging error on systems where security/sudo is present

PR:		207930
Reported by:	pete@hayes.id.au, kib (via mail)

Re-enable build with ports LLVM by non-default OPTION

PR:		208250
Submitted by:	jbeich

Update to upstream version 1.7.0

Update to upstream version 1.6.0

Update to upstream version 1.5.0; add OPTION to depend on gdb from ports

- Take maintainership
- Provide target for 'make test': Use bundled rust regression test suite
- Use bundled LLVM for now: Built with it, rust passes more regression tests
- Bump PORTREVISION

Update to upstream version 1.4.0

Enable rust on i386

Update to upstream version 1.3.0

lang/rust and lang/rust-nightly: Build-conflict with themselves

A newer version of Rust fails to build if an older version is installed
because the build process picks libraries in %%LOCALBASE%%/lib before
those from the build directory.

In the pkg-plist of both ports, `x86_64-unknown-freebsd` is now a
variable automatically set in the Makefile. This avoids the need for a
separate port for DragonFlyBSD. [1]

Still in the pkg-plist, RUST_VSN_HASH is automatically computed in the
lang/rust's Makefile, like it was already done for lang/rust-nightly.

lang/rust-nightly USES libedit. patch-mk_main.mk was copied from
lang/rust so the correct library is picked (ie. the one from Ports, not

1: Upgrade to 1.2.0.
2: add libedit to USES.

- Update to upstream release 1.1.0
- Fix bug 200449 in the process

PR:		201142, 200449
Submitted by:	andoriyu@gmail.com

lang/rust: Use LLVM 3.6 from Ports instead of the bundled one

Dependencies are updated: Perl is not a dependency at all and Python is
a build dependency only.

Rust may fail to build if a previous version is already installed
because the bootstrapped rustc puts "-L/usr/local/lib" at the beginning
of the linker flags. Therefore, mark rust as a CONFLICTS_BUILD with
itself.

Fix the build as a normal user by setting permissions on all directories
to 0755 [1].

Be closer to the standalone installer's file hierarchy by installing
files such as "components", "manifest-rustc" and "uninstall.sh".

Add "files/patch-src_librustc__back_target_freebsd__base.rs"
to remove "-L/usr/local/lib", "-L/usr/local/lib/gcc46" and
"-L/usr/local/lib/gcc44" from the builtin linker flags.

Differential Revision:	https://reviews.freebsd.org/D2466
Submitted by:	Chris Hutchinson [1]
Reviewed by:	jonathan, kwm
Approved by:	jonathan

- Update to first stable upstream release 1.0.0
- Reflect stable release in pkg-descr
- Pet portlint

PR:		200284
Submitted by:	maciej@pasternacki.net
Reviewed by:	riggs

lang/rust: Add special IGNORE for DragonFly

lang/rust-dragonfly is in dports and it is bleeding edge (updated every
couple of weeks)

lang/rust: add PORTREVISION mistakenly ommitted from yesterday's fix

Approved by:	mentors (implicit)

lang/rust: fixes

- Remove extra STRIP_CMD from the Makefile
- Fix SRIP_CMD that was stripping statically linked libraries

Approved by:	mentors (implicit)

lang/rust: update 0.11.0 -> 0.12.0

- Delete obsolete patch
- Convert to @dir usage

Approved by:	mentors (implicit)

- Convert ports of irc/ and lang/ to new USES=python

Approved by:	portmgr (implicit)