Mailing-List: contact dev-help@mesos.apache.org; run by ezmlm
Precedence: bulk
Reply-To: dev@mesos.apache.org
MIME-version: 1.0
Content-type: multipart/alternative;
 boundary="Boundary_(ID_rm4hsLOQTaYwEuLN6Bcn2g)"
Sender: drexin@apple.com
From: Dario Rexin <drexin@apple.com>
Subject: Re: Dropping support for Apple Clang
Date: Thu, 10 Aug 2017 12:12:40 -0700
References: 
 <CAL3vCQr+AGOVCjpaYW4Oyc70i7G3Mia5DEgPrYx71_yhEm4wRw@mail.gmail.com>
 <07FC65B8-A942-4C10-A25A-A059F58BFEC6@me.com>
 <CAL3vCQrqi58Rz6Lz==AkjbfW0xyeT+3wzfWYcL_ddSYTY9uo9g@mail.gmail.com>
To: dev@mesos.apache.org
In-reply-to: 
 <CAL3vCQrqi58Rz6Lz==AkjbfW0xyeT+3wzfWYcL_ddSYTY9uo9g@mail.gmail.com>
Message-id: <DADA0044-F470-4D53-B86B-A30E0458F7CF@apple.com>
archived-at: Thu, 10 Aug 2017 19:12:52 -0000

--Boundary_(ID_rm4hsLOQTaYwEuLN6Bcn2g)
Content-type: text/plain; charset=utf-8
Content-transfer-encoding: quoted-printable

Hey MPark,

I just did a clean make check on your cpp14 branch with Apple LLVM =
version 9.0.0 (clang-900.0.22.8). It compiles fine and I got 1 test =
error on the first run, on a second run no tests failed, so I assume =
that=E2=80=99s just a flaky test.

--
=EF=A3=BF Dario

> On Aug 10, 2017, at 10:09 AM, Michael Park <mpark@apache.org> wrote:
>=20
>>=20
>> Which version of Apple=E2=80=99s clang did you try for C++14? The =
latest version
>> available is Apple LLVM version 9.0.0 (clang-900.0.22.8).
>>=20
>=20
> I tested on
>=20
>  Apple LLVM version 8.1.0 (clang-802.0.42)
>  Target: x86_64-apple-darwin16.7.0
>  Thread model: posix
>  InstalledDir: /Library/Developer/CommandLineTools/usr/bin
>=20
> Till, do you mind trying it out on 9.0.0?
> You can just try building https://github.com/mpark/mesos/tree/cpp14
>=20
> MPark
>=20
>> On Jul 29, 2017, at 2:38 AM, Michael Park <mpark@apache.org> wrote:
>>>=20
>>> I'd like to drop support for Apple Clang.
>>>=20
>>> With the C++14 upgrade, we'll be requiring many distros to fetch a =
newer
>>> compiler. In most cases it only takes a few commands to get a newer
>>> compiler. This is also true of OS X, where clang-4.0 can be easily
>>> installed with `brew install llvm`.
>>>=20
>>> The current codebase does not compile with Apple Clang under C++14 =
mode.
>> We
>>> could choose to investigate whether this is a Mesos bug or an Apple =
Clang
>>> bug, but after doing a brief investigation myself, I feel like it's =
not
>>> worth the effort. There are already cases where we need to install a =
new
>>> compiler on OS X due to Apple Clang releases based on clang-3.8
>> (MESOS-5745
>>> <https://issues.apache.org/jira/browse/MESOS-5745>).
>>>=20
>>> Not that Apple Clang was "officially" supported anyway, but we have =
had
>>> minor workarounds (e.g., THREAD_LOCAL) to support it.
>>>=20
>>> Please let me know what you think!
>>>=20
>>> Thanks,
>>>=20
>>> MPark
>>=20
>>=20


--Boundary_(ID_rm4hsLOQTaYwEuLN6Bcn2g)--