[Boost-users] new user: error: 'std::tr1' has not been declared

Subject: [Boost-users] new user: error: 'std::tr1' has not been declared
From: Juan Vesa (juan.vesa_at_[hidden])
Date: 2010-03-28 00:59:16

hello,
i'm a brand new user to boost, with xcode 2.4.1, os x 10.4.11  
(intel),  i686-apple-darwin8-gcc-4.0.1
i'm getting some errors trying to use a library (http:// 
www.cs.kuleuven.ac.be/~ares/libply/) which uses boost. however i am  
stuck at the error:

error: 'std::tr1' has not been declared

doing ./config from boot_root/libs/config, i get the following output  
related to tr1:

checking std::tr1::array... no
checking std::tr1::bind... no
checking std::complex overloads... no
checking std::complex inverse trig functions... no
checking std::tr1::function... no
checking std::tr1::hash... no
checking std::tr1::mem_fn... no
checking std::tr1::random... no
checking std::tr1::reference_wrapper... no
checking std::tr1::regex... no
checking std::tr1::result_of... no
checking std::tr1::shared_ptr... no
checking std::tr1::tuple... no
checking std::tr1::type_traits... no
checking std::tr1::unordered_map... no
checking std::tr1::unordered_set... no
checking std::tr1::utility... no

so, how can i enable the successful use of the std::tr1 libraries  
available with boost?

regards,