class world
{
    private:
    ID IDcounter;
    std::map<ID, boost::shared_ptr<spacething> > IDmap;
    public:
    ID getID(boost::shared_ptr<spacething>);
    boost::shared_ptr<spacething> getSpacethingPtr(ID id);
    void instantiateSpacething(boost::shared_ptr<spacething> initiate);
    void addSpacething;//(boost::share_ptr<spacething> other);
    void update(){}
    world();
    ~world();
};

Executing  make...
make.exe -f "C:\Documents and Settings\Owner\Desktop\clank\Makefile.win" all
g++.exe -D__DEBUG__ -c clank.cpp -o clank.o -I"C:/Dev-Cpp/lib/gcc/mingw32/3.4.2/include"  -I"C:/Dev-Cpp/include/c++/3.4.2/backward"  -I"C:/Dev-Cpp/include/c++/3.4.2/mingw32"  -I"C:/Dev-Cpp/include/c++/3.4.2"  -I"C:/Dev-Cpp/include"  -I"C:/clank/include"    -ggdb -pg -g3

In file included from spacething.h:10,
                 from frobnitz.h:4,
                 from clank.cpp:8:
world.h:21: error: variable or field `addSpacething' declared void

make.exe: *** [clank.o] Error 1

Execution terminated

class world{    private:    ID IDcounter;    std::map<ID, boost::shared_ptr<spacething> > IDmap;    public:    ID getID(boost::shared_ptr<spacething>);    boost::shared_ptr<spacething> getSpacethingPtr(ID id);    void instantiateSpacething(boost::shared_ptr<spacething> initiate);    void addSpacething(boost::share_ptr<spacething> other);    void update(){}    world();    ~world();};

Executing  make...make.exe -f "C:\Documents and Settings\Owner\Desktop\clank\Makefile.win" allg++.exe -D__DEBUG__ -c clank.cpp -o clank.o -I"C:/Dev-Cpp/lib/gcc/mingw32/3.4.2/include"  -I"C:/Dev-Cpp/include/c++/3.4.2/backward"  -I"C:/Dev-Cpp/include/c++/3.4.2/mingw32"  -I"C:/Dev-Cpp/include/c++/3.4.2"  -I"C:/Dev-Cpp/include"  -I"C:/clank/include"    -ggdb -pg -g3In file included from spacething.h:10,                 from frobnitz.h:4,                 from clank.cpp:8:world.h:21: error: variable or field `addSpacething' declared voidworld.h:21: error: expected `;' before '(' tokenmake.exe: *** [clank.o] Error 1Execution terminated