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

Oleg Smolsky via cfe-dev cfe-dev at lists.llvm.org
Mon Dec 24 17:08:41 PST 2018

Yes, this keyword is no longer valid starting from C++17:

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


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 lists.llvm.org <mailto:llvm-dev at lists.llvm.org>> 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).
>     _______________________________________________
>     LLVM Developers mailing list
>     llvm-dev at lists.llvm.org <mailto:llvm-dev at lists.llvm.org>
>     http://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-dev
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