Boost Proto conflict with Asio / Linux

[ramon.casellas@…]

Dear Boost Proto maintainer,

This bug (or variation) seems to be open for boost trunk and release (1.51). The problem seems to be that B0 can be defined in Linux (e.g. included via asio)

./asm-generic/termbits.h:113:2619:#define  B0   0000000         /* hang up */
./rpcsvc/rex.h:53:809:#define B0 0
./x86_64-linux-gnu/bits/termios.h:122:3149:#define  B0  0000000         /* hang up */

Can something be done at the Boost Proto level? Thanks, R.

​http://boost.2283326.n4.nabble.com/spirit2-conflict-with-asio-header-td2659901.html

/adnet/boost-1.51.0/include/boost/proto/transform/detail/preprocessed/pack_impl.hpp:23:31: error: expected nested-name-specifier before numeric constant
/adnet/boost-1.51.0/include/boost/proto/transform/detail/preprocessed/pack_impl.hpp:23:31: error: expected ‘>’ before numeric constant
/adnet/boost-1.51.0/include/boost/proto/transform/detail/preprocessed/pack_impl.hpp:24:20: error: template parameters not used in partial specialization:
/adnet/boost-1.51.0/include/boost/proto/transform/detail/preprocessed/pack_impl.hpp:24:20: error:         ‘<anonymous>’
/adnet/boost-1.51.0/include/boost/proto/transform/detail/preprocessed/pack_impl.hpp:28:31: error: expected nested-name-specifier before numeric constant
/adnet/boost-1.51.0/include/boost/proto/transform/detail/preprocessed/pack_impl.hpp:28:31: error: expected ‘>’ before numeric constant
/adnet/boost-1.51.0/include/boost/proto/transform/detail/preprocessed/pack_impl.hpp:29:34: error: ‘B1’ was not declared in this scope
/adnet/boost-1.51.0/include/boost/proto/transform/detail/preprocessed/pack_impl.hpp:29:36: error: wrong number of template arguments (2, should be 1)
/adnet/boost-1.51.0/include/boost/proto/transform/detail/preprocessed/pack_impl.hpp:22:20: error: provided for ‘template<class Ret> template<int <anonymous> > struct boost::proto::detail::expand_pattern_rest_0<Ret>::cat’
/adnet/boost-1.51.0/include/boost/proto/transform/detail/preprocessed/pack_impl.hpp:33:31: error: expected nested-name-specifier before numeric constant
/adnet/boost-1.51.0/include/boost/proto/transform/detail/preprocessed/pack_impl.hpp:33:31: error: expected ‘>’ before numeric constant
/adnet/boost-1.51.0/include/boost/proto/transform/detail/preprocessed/pack_impl.hpp:34:34: error: ‘B1’ was not declared in this scope
/adnet/boost-1.51.0/include/boost/proto/transform/detail/preprocessed/pack_impl.hpp:34:39: error: ‘B2’ was not declared in this scope

Replacing B0 with BB0 fixes it

[Eric Niebler]

(In [79918]) don't use B0, conflict with a macro on Linux, references #7203

[Eric Niebler]

(In [79934]) merge [79918] from trunk, fixes #7203