* INLINE doesn't work across several objects as of C99; we just survive it the way...

* INLINE doesn't work across several objects as of C99; we just survive it the way its now because of gcc is sluggish here.
(see http://clang.llvm.org/docs/UsersManual.html#c_modes for details)
Move the INLINE function into the header, make it static INLINE as sugested by jyasskin and sabre