mixing qvector.h and math_Memory.hxx won't compile

Compiling a project involving qt5.4 and occt6.9.0, if using a qvector raise this error:

call to 'memmove' is ambiguous
            memmove(i, b, (d->size - offset) * sizeof(T));
            ^~~~~~~

The issue is that qvecor.h (L649) calls memmove coming from string.h (system's header)
Whereas in the file /inc/math_Memory.hxx from occt, this function is also defined for other OS but Windows.
// uniquement parce que memmove n'existe pas sur SUN
#ifndef WNT
void *reverse_move(void *s1, void *s2, int size);

inline void *memmove(void *s1, void *s2, int size) {

/*
     void *result;

     if(s2 < s1) {
       result = reverse_move(s1, s2, size);
     }
     else {
       result = memcpy(s1, s2, size);
     }
     return result;
*/
     return memcpy(s1, s2, size);
   }
#endif

As this definition seems to be intended only for sun and as this OS doesn't seems to be supported anymore, maybe this portion of code should be suppressed. As for now deleting it never have affecter my applications.