> I followed MinGW faq and produced .a files from the dlls. Things seem to be fine. > But I still cannot found any documentation on *_imp_* prefix. The faq does > mention __stdcall prefix, but it is for msvc.
I gave you wrong / incomplete information. Using stdcall causes the @n to be added to function names. __declspec(import), which tells the compiler that the function is imported from a DLL, is what adds the __imp_ prefix.
See http://support.microsoft.com/kb/132044 for more information.