* Dominique Martinet: > This makes sense to me to avoid multiplying header files for the > different arches, so if anything I would be tempted to ask 'why is > stdint.h uint64_t defined with just long'? It's not a compiler-provided header. When it was added to glibc in the 90s, I don't think long long support was universal among 64-bit compilers, and you could not just drop the type (which might have been acceptable on 32-bit architectures). Anyway, looking at this, it looks like we should define struct statx with unsigned long long int in our copy instead of uint64_t. I filed bug 25292 to track this. I guess it's just another thing to keep in mind when adding system call support to glibc headers. Thanks, Florian