@mysterycoder : I had replace Newton.h by the last version and it has worked!! But, for the release build of Newton, I've got some STL problems... :
../../../trunk/dependencies/includes/STLPort/stl/_string.c:171: instantiated from `stlp_std::basic_string<_CharT, _Traits, _Alloc>& stlp_std::basic_string<_CharT, _Traits, _Alloc>::append(const _CharT*, const _CharT*) [with _CharT = char, _Traits = stlp_std::char_traits<char>, _Alloc = stlp_std::allocator<char>]'
../../../trunk/dependencies/includes/STLPort/stl/_string_operators.h:58: instantiated from `stlp_std::basic_string<_CharT, _Traits, _Alloc> stlp_std::operator+(const _CharT*, const stlp_std::basic_string<_CharT, _Traits, _Alloc>&) [with _CharT = char, _Traits = stlp_std::char_traits<char>, _Alloc = stlp_std::allocator<char>]'
../../../trunk/dependencies/includes/OGRE/OgreAnimable.h:283: instantiated from hereAnd
../../../trunk/dependencies/includes/STLPort/stl/_string.c:171: instantiated from `stlp_std::basic_string<_CharT, _Traits, _Alloc>& stlp_std::basic_string<_CharT, _Traits, _Alloc>::append(const _CharT*, const _CharT*) [with _CharT = char, _Traits = stlp_std::char_traits<char>, _Alloc = stlp_std::allocator<char>]'
../../../trunk/dependencies/includes/STLPort/stl/_string_operators.h:58: instantiated from `stlp_std::basic_string<_CharT, _Traits, _Alloc> stlp_std::operator+(const _CharT*, const stlp_std::basic_string<_CharT, _Traits, _Alloc>&) [with _CharT = char, _Traits = stlp_std::char_traits<char>, _Alloc = stlp_std::allocator<char>]'
../../../trunk/dependencies/includes/OGRE/OgreAnimable.h:283: instantiated from hereSo I can't compil WGE... but I'm cloth!!

@pjcast: I agree with you C# is the most appropriate language for this kind of things, but I wanted to make a crossplatform program, so C++ with wxWidgets appears to be the better choice.
Of course, you could spend many months reaccomplishing what I have done
Hum, my editor will be axes on a Game Editor and not on a Graphical Engine, I wanted to make a easy to understand program with perahps less options for rendering etc. But, with a lot of possibility which would be more accessible. My program, will be more a game maker, so I hope I will not "reinvent the wheel" with it!
Thanks to both of you for your repply,
Greetings,
dede