[MacPorts] #60302: nds2-client @0.16.2: error: cannot omit braces around initialization of subobject when using direct list-initialization

[Edward Maros]

On 4/2/20 21:35, MacPorts wrote:
> #60302: nds2-client @0.16.2: error: cannot omit braces around initialization of
> subobject when using direct list-initialization
> ------------------------+-------------------------
>  Reporter:  ryandesign  |      Owner:  emaros
>      Type:  defect      |     Status:  assigned
>  Priority:  Normal      |  Milestone:
> Component:  ports       |    Version:  2.6.2
>  Keywords:  lion        |       Port:  nds2-client
> ------------------------+-------------------------
>  nds2-client fails to build on Lion only:
>
>  {{{
>  :info:build
>  /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_science_nds2-client/nds2-client/work/nds2-client-0.16.2/src/common/common/status_codes.hh:16:50:
>  error: cannot omit braces around initialization of subobject when using
>  direct list-initialization
>  :info:build         const auto STATUS_DAQD_OK = status_code{ '0', '0',
>  '0', '0' };
>  :info:build
>  ^~~~~~~~~~~~~~~~~~
>  :info:build                                                  {
>  }
>  :info:build
>  }}}
>
>  It builds fine on Snow Leopard (using gcc) and it builds fine on Mountain
>  Lion and later (using clang). My guess is that later versions of clang
>  have relaxed whatever this restriction is.
>
>  Possible solutions might include adding the braces as mentioned in the
>  error message or blacklisting older versions of clang.
>
After doing some research, it seems that the correct solution is to
blacklist. The syntax being used changed during the C++2011 standard and
is acceptable from late 2011 and beyond. What compilers need to be
blacklisted? I will change the Portfile once I know.

Thanks,

Ed