Hi, I'm getting the same error while building signals with boost 1.45.0 using VC 2003 + SP1. Are there any hotfixes that are required? Parts of the build log included below... Regards, Brodie .\bjam variant=debug threading=multi link=shared runtime-link=shared -j2 toolset=msvc-7.1 -sNO_BZIP2=1 -sNO_ZLIB=1 -sICU_PATH=d:\src\vendor\icu_4.4.2_HEAD\msvc-7.1 --with-date_time --with-filesystem --with-iostreams --with-regex --with-serialization --with-signals --with-system --with-thread Building the Boost C++ Libraries. Performing configuration checks - has_icu builds : yes Component configuration: - date_time : building - filesystem : building - graph : not building - graph_parallel : not building - iostreams : building - math : not building - mpi : not building - program_options : not building - python : not building - random : not building - regex : building - serialization : building - signals : building - system : building - test : not building - thread : building - wave : not building common.mkdir bin.v2\libs\signals\build\msvc-7.1 common.mkdir bin.v2\libs\signals\build\msvc-7.1\debug common.mkdir bin.v2\libs\signals\build\msvc-7.1\debug\threading-multi compile-c-c++ bin.v2\libs\signals\build\msvc-7.1\debug\threading-multi\trackable.obj trackable.cpp boost\typeof\msvc\typeof_impl.hpp(160) : error C2027: use of undefined type '<Unknown>' boost\typeof\msvc\typeof_impl.hpp(143) : see declaration of '<Unknown>' boost\typeof\msvc\typeof_impl.hpp(160) : see reference to class template instantiation '<Unknown>' being compiled boost\type_traits\common_type.hpp(121) : see reference to class template instantiation '<Unknown>' being compiled boost\type_traits\common_type.hpp(123) : see reference to class template instantiation 'boost::type_traits_detail::common_type_2<T,U

' being compiled boost\typeof\msvc\typeof_impl.hpp(160) : error C2146: syntax error : missing ';' before identifier 'wrapped_type' boost\typeof\msvc\typeof_impl.hpp(160) : error C2501: '<Unknown>' : missing storage-class or type specifiers boost\typeof\msvc\typeof_impl.hpp(161) : error C2653: 'wrapped_type' : is not a class or namespace name

On Sat, Nov 20, 2010 at 12:14 PM, Eric Niebler <eric@boostpro.com> wrote:

(bringing in boost dev...)

This sounds bad. Can anybody confirm?

-- Eric Niebler BoostPro Computing http://www.boostpro.com

On 11/19/2010 4:35 PM, gast128 wrote:

...

Hello all,

just tried out Boost 1.45 on VStudio 2003 but I got a compile error by only including type_traits:

#include <boost/type_traits.hpp>

int main() {    return 0; }

C:\Work Sdk\boost_1_45_0\boost\typeof\msvc\typeof_impl.hpp(160) : error C2027: use of undefined type '<Unknown>'         C:\Work Sdk\boost_1_45_0\boost\typeof\msvc\typeof_impl.hpp(143) : see declaration of '<Unknown>'         C:\Work Sdk\boost_1_45_0\boost\typeof\msvc\typeof_impl.hpp(160) : see reference to class template instantiation '<Unknown>' being compiled         C:\Work Sdk\boost_1_45_0\boost\type_traits\common_type.hpp(121) : see reference to class template instantiation '<Unknown>' being compiled         C:\Work Sdk\boost_1_45_0\boost\type_traits\common_type.hpp(123) : see reference to class template instantiation 'boost::type_traits_detail::common_type_2<T,U>' being compiled C:\Work Sdk\boost_1_45_0\boost\typeof\msvc\typeof_impl.hpp(160) : error C2146: syntax error : missing ';' before identifier 'wrapped_type' C:\Work Sdk\boost_1_45_0\boost\typeof\msvc\typeof_impl.hpp(160) : error C2501: '<Unknown>' : missing storage-class or type specifiers C:\Work Sdk\boost_1_45_0\boost\typeof\msvc\typeof_impl.hpp(161) : error C2653: 'wrapped_type' : is not a class or namespace name

afaik it seems located on 121 in 'boost/type_traits/coomon_type.hpp'

Anyone can help?

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