Re: [boost] [spirit][phoenix] Spirit v2 conflicts with Phoenix v3

Subject: Re: [boost] [spirit][phoenix] Spirit v2 conflicts with Phoenix v3
From: Thomas Heller (thom.heller_at_[hidden])
Date: 2012-07-19 10:49:03

On 07/19/2012 04:39 PM, Andrey Semashev wrote:
> Hi,
>
> Recently I tried to port my code to Boost.Spirit v2 and Boost.Phoenix v3.
> After including the following headers:
>
> #include<boost/phoenix/core.hpp>
> #include<boost/spirit/include/qi_core.hpp>
>
> I got the following error:
>
> In file included from ./boost/spirit/home/phoenix/core.hpp:13:0,
>                   from ./boost/spirit/include/phoenix_core.hpp:14,
>                   from ./boost/spirit/home/support/make_component.hpp:15,
>                   from ./boost/spirit/home/support/meta_compiler.hpp:20,
>                   from ./boost/spirit/home/qi/domain.hpp:15,
>                   from ./boost/spirit/home/qi/parser.hpp:15,
>                   from ./boost/spirit/include/qi_core.hpp:16,
>                   from libs/log/src/text_file_backend.cpp:51:
> ./boost/spirit/home/phoenix/core/actor.hpp:46:16: error: redefinition of
> ‘struct boost::phoenix::detail::error_expecting_arguments’
> ./boost/phoenix/core/actor.hpp:41:16: error: previous definition of ‘struct
> boost::phoenix::detail::error_expecting_arguments’
> ./boost/spirit/home/phoenix/core/actor.hpp:65:12: error: redefinition of
> ‘struct boost::phoenix::actor<Expr>’
> ./boost/phoenix/core/actor.hpp:161:12: error: previous definition of ‘struct
> boost::phoenix::actor<Expr>’
>
> I take it the problem is that Boost.Spirit always include Phoenix v2 which
> causes name clashes with v3.
>
> Is this a known problem? Shouldn't Boost.Spirit include Phoenix v3 headers
> instead? I can see v3 redirects includes to v2 if BOOST_PHOENIX_USE_V2_OVER_V3
> macro is defined (BTW, there's an error in boost/phoenix/stl.hpp:
> BOOST_PHOENIX_USE_V2 macro is checked instead).
>
> This happens in the release branch.
You should define BOOST_SPIRIT_USE_PHOENIX_V3 instead, as documented here:
http://www.boost.org/doc/libs/1_50_0/libs/spirit/doc/html/spirit/what_s_new/spirit_2_5.html
This probably needs a bit more exposure, the macros defined in phoenix 
are a leftover from earlier days and should be ignored.
>
>
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