boost-1.34.0 fails to compile. concept checks not satisfied.

[pluto@…]

please build the gcc-4.1/4.2 with --enable-concept-checks or #define _GLIBCXX_CONCEPT_CHECKS 1 in /usr/include/c++/$ver/$target/bits/c++config.h and try to build boost. there're few gnu_cxx::_SGIAssignableConcept failures.

(...) ...failed updating 6 targets... ...skipped 6 targets... ...updated 451 targets...

[René Rivera]

Could you please provide a list of the errors? That way we can assign this to the appropriate person.

[Vladimir Prus]

Ping? Without a list of the errors, there's not much we can do, and we'll have to close this issue.

[Dave Abrahams]

These appear to be bugs in Wave

[Hartmut Kaiser]

That's not a bug in Wave, but in the Spirit parse tree generation code. The concept checking complains about an incomplete type (and therefor not satisfying the assignable concept):

spirit/tree/common.hpp:+52 template <typename T> struct tree_node { ...

here: tree_node<T> is incomplete (self recursive)

typedef std::vector<tree_node<T>, allocator_type> children_t; children_t children;

... };

[pluto@…]

Replying to hkaiser:

wontfix? why?

[Hartmut Kaiser]

Replying to pluto@pld-linux.org:

Replying to hkaiser:

wontfix? why?

Won't fix at least in 1.35.0. The aim is to have SpiritV2 in Boost for 1.36. This will solve the problem. If not, let's get back to this issue then.

[Dave Abrahams]

Replying to hkaiser:

Replying to pluto@pld-linux.org:

Replying to hkaiser:

wontfix? why?

Won't fix at least in 1.35.0. The aim is to have SpiritV2 in Boost for 1.36. This will solve the problem. If not, let's get back to this issue then.

The proper thing to do with such a ticket is not to close it, which essentially removes it from consideration, but to assign it to a later milestone, which I have done. See also #1497

[Dave Abrahams]

Forgot to reopen

[mmocny@…]

I am running into this exact issue with boost 1.39 - only on MinGW g++ 4.3 and 4.4 (linux and solaris build fine).

However, this bug is appearing when we compile our application, not when we try to compile boost::spirit.

[mmocny@…]

compile error messages

[Hartmut Kaiser]

This issue is related to an older version of Spirit and does not persist in the newest versions anymore (V2.x). It's finally time to put the ticket to its deserved rest.