Re: [Boost-users] [release] Boost 1.70.0 Beta 1 Release Candidate 1

Subject: Re: [Boost-users] [release] Boost 1.70.0 Beta 1 Release Candidate 1
From: Tom Kent (lists_at_[hidden])
Date: 2019-03-09 13:14:01

On Fri, Mar 8, 2019 at 6:42 PM Marshall Clow via Boost-users <
boost-users_at_[hidden]> wrote:

> On Fri, Mar 8, 2019 at 10:21 AM Marshall Clow <mclow.lists_at_[hidden]>
> wrote:
>
>> The release candidates for the first 1.70.0 beta release are now
>> available at:
>>
>>     https://dl.bintray.com/boostorg/beta/1.70.0.beta.1.rc1/source/
>>
>> The release notes are not yet available.
>>
>> The SHA256 checksums are as follows:
>>
>> a7c570d6307d05dc8d45a3b4c69a0afdcba2b22eac0c4da4d496559f53db7b89
>> ./boost_1_70_0_b1_rc1.7z
>> 4b91b9a203cf12f6001cf39de83c7cc005fbc5390e2b4b2fc29ce7b19c0537a7
>> ./boost_1_70_0_b1_rc1.tar.bz2
>> 460dd6499bba9df04c6bfa219b26097bad803b8758304ba45f2fc291aa42c96e
>> ./boost_1_70_0_b1_rc1.tar.gz
>> f209c9a086ed2c7882a0bc8755792f436eb141eaeb8c823ed57295ca9ce25b93
>> ./boost_1_70_0_b1_rc1.zip
>>
>> As always, the release managers would appreciate it if you download
>> the candidate of your choice and give building it a try. Please report
>> both success and failure, and anything else that is noteworthy.
>>
>
>
> I have built the RC on Mac OS X 10.11 using Apple LLVM version 8.0.0
> (clang-800.0.42.1)
> successfully while specifying c++03/11/14/1z
>
> I have built the RC on Mac OS X 10.14 using Apple LLVM version 10.0.0
> (clang-1000.10.44.4)
> successfully while specifying c++03/11/14,
> but failed when specifying c++17/2a, because the Python 2.7 headers
> shipped with Mac OS 10.14 use the "register" keyword:
>
> In file included from
> /System/Library/Frameworks/Python.framework/Versions/2.7/include/python2.7/Python.h:85:
> /System/Library/Frameworks/Python.framework/Versions/2.7/include/python2.7/unicodeobject.h:534:5:
> error: ISO C++17 does not allow 'register' storage class specifier
> [-Wregister]
>     register PyObject *obj,     /* Object */
>     ^~~~~~~~~
>
> I have built the RC on Mac OS X 10.14 using a recent trunk build of clang
> (version 9.0.0 (https://github.com/llvm/llvm-project.git
> 881e83d8b94f1997de674ed8ff382a73a29a719d))
> successfully while specifying c++03/11/14,
> but failed when specifying c++17/2a, because the Python 2.7 headers
> shipped with Mac OS 10.13 use the "register" keyword:
>
> In file included from
> /System/Library/Frameworks/Python.framework/Versions/2.7/include/python2.7/Python.h:85:
> /System/Library/Frameworks/Python.framework/Versions/2.7/include/python2.7/unicodeobject.h:534:5:
> error: ISO C++17 does not allow 'register' storage class specifier
> [-Wregister]
>     register PyObject *obj,     /* Object */
>     ^~~~~~~~~
>
> (same results as with Apple's clang)
>
> I have built the RC on Ubuntu 18.14 with gcc 7.3.2
> successfully while specifying c++03/11/14,
> but failed when specifying c++17/2a, because the Python 2.7 headers
> shipped with 18.04 use the "register" keyword:
>
> In file included from /usr/include/python2.7/Python.h:88:
> /usr/include/python2.7/unicodeobject.h:534:5: warning: 'register' storage
> class specifier is deprecated and incompatible with C++17
> [-Wdeprecated-register]
>     register PyObject *obj,     /* Object */
>     ^~~~~~~~~
>
> and I had the same results with a recently built version of clang on
> Ubuntu (success on 03/11/14, but python failures with 17/2a)
>
>
I encountered similar issues when trying to build python with modern
versions of visual studio. I ended up making the decision [1] that
msvc-14.0 would build against python 3.x while earlier versions would
remain on python 2.7.

Since python 2.X is going end of life at the end of the year [2], I'm
thinking that I'm going to drop windows builds with boost python for the
older compilers after that point. You're obviously free to test against
whatever config you like, just wanted to mention that.

Tom

[1] https://lists.boost.org/Archives/boost/2018/07/242443.php
[2] https://pythonclock.org/