Re: [Boost-users] [cfe-dev] [llvm-dev] Error: ISO C++17 does not allow 'register' storage class specifier [-Wregister], when building Boost 1.69.0

Subject: Re: [Boost-users] [cfe-dev] [llvm-dev] Error: ISO C++17 does not allow 'register' storage class specifier [-Wregister], when building Boost 1.69.0
From: Osman Zakir (osmanzakir90_at_[hidden])
Date: 2018-12-25 17:40:57

I'll build using C++14 mode, then.  I wonder if Python 3.7.1 has this issue as well?  If it doesn't, then maybe Boost should switch over to that version of Python.
________________________________
From: Matthieu Brucher <matthieu.brucher_at_[hidden]>
Sent: Tuesday, December 25, 2018 2:56 PM
To: Oleg Smolsky
Cc: Craig Topper; Osman Zakir; clang developer list; cfe-users_at_[hidden]; llvm-dev_at_[hidden]
Subject: Re: [cfe-dev] [llvm-dev] Error: ISO C++17 does not allow 'register' storage class specifier [-Wregister], when building Boost 1.69.0

The issue comes in part form the Python headers that have the keyword.
Unfortunately, this also means that there is an issue while building user code. But it's not a Boost code issue for this library, but a Python one.

Regards,

Matthieu

Le mar. 25 déc. 2018 à 02:08, Oleg Smolsky via cfe-dev <cfe-dev_at_[hidden]<mailto:cfe-dev_at_[hidden]>> a écrit :

Yes, this keyword is no longer valid starting from C++17:
    https://en.cppreference.com/w/cpp/keyword/register

I realize that the "why" probably doesn't help you move forth with your problem, so here are a couple suggestions how to get over it:

  *   Build Boost in C++14 mode with -std=c++14
  *   Cut out "register" from the Boost source and rebuild
  *   Try a newer Boost version, it may have been fixed

Oleg.

On 2018-12-23 09:26, Craig Topper via cfe-dev wrote:
This seems a better question for cfe-dev or cfe-users

~Craig

On Sat, Dec 22, 2018 at 12:23 PM Osman Zakir via llvm-dev <llvm-dev_at_[hidden]<mailto:llvm-dev_at_[hidden]>> wrote:
When trying to build Boost using LLVM, I had this error:
"
error: ISO C++17 does not allow 'register' storage class specifier [-Wregister]
"
I attached the project-config.jam file I used to this message.  Someone please help me out (if there's someone on here who can).
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