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Subject: Re: [Boost-users] problems with boost in eclipse
From: Eric MALENFANT (Eric.Malenfant_at_[hidden])
Date: 2008-11-04 13:51:27

> On Sun, Nov 2, 2008 at 9:32 PM, Z. S. O.
> <tiredashell_at_[hidden]> wrote:
> Sure! The console output is below. The files in
> question are utf8_codecvt_facet.cpp, which is in libs/detail,
> and its header file, which is in boost/detail.
> Building file: ../src/boost/libs/detail/utf8_codecvt_facet.cpp
> Invoking: GCC C++ Compiler g++
> -I/Volumes/Admin/Projects/TestProgram/src/stlsoft-1.9.60/inclu
> de -I/Volumes/Admin/Projects/TestProgram/src/boost -O0 -g3
> -Wall -c -fmessage-length=0 -MMD -MP
> -MF"src/boost/libs/detail/utf8_codecvt_facet.d"
> -MT"src/boost/libs/detail/utf8_codecvt_facet.d"
> -o"src/boost/libs/detail/utf8_codecvt_facet.o"
> "../src/boost/libs/detail/utf8_codecvt_facet.cpp"
> /Volumes/Admin/Projects/TestProgram/src/boost/boost/detail/utf
> 8_codecvt_facet.hpp:113: error: expected constructor,
> destructor, or type conversion before 'struct'
> /usr/include/assert.h:75: error: expected constructor,
> destructor, or type conversion before 'extern'
> ../src/boost/libs/detail/utf8_codecvt_facet.cpp:28:
> error: 'BOOST_UTF8_BEGIN_NAMESPACE' does not name a type


Are you sure that you need to compile libs/detail/utf8_codecvt_facet.cpp?

boost/detail/utf8_codecvt_facet.hpp has this comment:
// Until the above points are fixed, a library which wants to use utf8 must:
// - include this header from one of it's headers or sources
// - include the corresponding .cpp file from one of the sources
// - before including either file, the library must define
// - BOOST_UTF8_BEGIN_NAMESPACE to the namespace declaration that must be used
// - BOOST_UTF8_END_NAMESPACE to the code to close the previous namespace
// - declaration.
// - BOOST_UTF8_DECL -- to the code which must be used for all 'exportable'
// symbols.

from which it seems that the corresponding .cpp is not designed to be built directly, but via inclusion from another Boost lib.

Éric Malenfant
The easier it is to do, the harder it is to change.

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