error C2039: 'proto_tag' : is not a member of 'boost::phoenix::custom_terminal<boost::log::v2_mt_nt5::expressions::format_date_time_terminal<T,FallbackPolicyT,CharT>,void>'

[Joseph Southwell <joseph@…>]

Some time in the last month the following statement stopped compiling with modular-boost/master on visual studio 2013.

The first error is...

error C2039: 'proto_tag' : is not a member of 'boost::phoenix::custom_terminal<boost::log::v2_mt_nt5::expressions::format_date_time_terminal<T,FallbackPolicyT,CharT>,void>'

I have attached a build.log and an example cpp file.

I switched to develop and got the same result. I am new to git so not sure I did it right.

git checkout develop git pull --recurse-submodules .\b2 --toolset=msvc-12.0

[Joseph Southwell <joseph@…>]

this was broken on February 6th in phoenix fixing issue 7730.

It can be fixed in boost\log\detail\custom_terminal_spec.hpp

by adding the following line before including boost\phoenix\core\terminal.hpp

#define BOOST_PHOENIX_NO_SPECIALIZE_CUSTOM_TERMINAL

[Andrey Semashev]

I can reproduce this as well with gcc 4.8.1. Currently I'm not sure what the best course of action is with this problem. I'll contact with John in #7730.

[Andrey Semashev]

GCC compilation failure.

[Andrey Semashev]

I've committed a fix in develop: ​https://github.com/boostorg/log/commit/409dffcd1b96b0818831c2369c96ded523be0f0b.

[John Fletcher <J.P.Fletcher@…>]

Hi. Is this now fixed in Log?

[Andrey Semashev]

It is fixed in develop, yes.

[Andrey Semashev]

Merged to master.