msvc

I give up. While compiling diff_patch.cc I get this error

C:\PROGRA~1\MICROS~2\VC98\INCLUDE\map(94) : error C2440: 'return' : 
cannot convert from 'class file<class hexenc<class id> >' to 'struct 
std::pair<class file_path const ,class file<class hexenc<class id> > > &'
       A reference that is not to 'const' cannot be bound to a non-lvalue
       C:\PROGRA~1\MICROS~2\VC98\INCLUDE\map(93) : while compiling 
class-template member function 'struct std::pair<class file_path const 
,class file<class hexenc<class id> > > &__thiscall std::map<class 
file_path,class file<class hexenc<class id>
>,struct std::less<class file_path>,class std::allocator<struct 
std::pair<class file_path const ,class file<class hexenc<class id> > > > 
>::operator [](const class file_path &)'

that leaves no hint as to where the problem might be. Since maps are 
used all over the place I do not know how to track it down :-(

Zbynek

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Faculty of Mathematics and Physics, Charles University, Prague, Czech Republic