how to call std_stdio_static_this from a dynamically loaded shared library (osx)

[timotheecour]

I moved the discussion to 
http://forum.dlang.org/thread/iegurltmszdndxqnoyxw@forum.dlang.org#post-iegurltmszdndxqnoyxw:40forum.dlang.org
since the problem appears more general, ie how to redefine an 
extern(C) function in a dynamic load library