[boost] [tr1][functional] fails to compile under gcc 4.0.1 on OS X

From: Matthias Schabel (boost_at_[hidden])
Date: 2007-12-13 12:51:34

This code compiles using Intel ICC 10.1, but fails with "error:  
utility: No such file or directory in file included from /usr/local/ 
include/boost/tr1/functional.hpp" under gcc :

#include <boost/tr1/functional.hpp>

namespace mcs {

class SPGR
{
        public:
            SPGR(double TR,double TE,double alpha,double T10,double  
T20,double r1,double r2) { }
            ~SPGR() { }
                
            double Xi(double C) const   { return 1.0; }

             void test() const;
};

inline void SPGR::test() const
{
        using namespace std::tr1::placeholders;
        
        std::tr1::function<double (double)>	 
f(std::tr1::bind(&SPGR::Xi,this,_1));
}

} // namespace mcs

int main()
{
     mcs::SPGR    spgr(10,1,15,1000,100,4e-3,5e-3);

     return 0;
}

I don't think I'm doing anything blatantly stupid here...any ideas on  
what's going on?

Matthias