On Sun, Apr 13, 2003 at 02:06:33PM +0200, Martin Husemann wrote: > #if sizeof(daddr_t) > sizeof(int) (or uint32_t, or whatever the "small" > daddr_t version actually uses)? Heh, nonsense, of course. Seems like #ifdef __daddr_t #define 32bit version #else #define 64bit version #endif should actually do what you are looking for. Martin