Here's where you might get into trouble. SVNKit is just grabbing memory offsets from the stat structure (typically you'd probably want to define a structure representing the native structure, but in this case SVNKit is doing some quick and dirty lookups to get just what they need).

The required offset depends on where the "mode_t st_mode" field shows up in the "stat" structure (see sys/stat.h). On darwin/bsd, the first two fields are 32 bits each, which gives you the 8 byte offset. This looks correct.

struct stat64 { dev_t st_dev; /* ID of device containing file */ mode_t st_mode; /* Mode of file (see below) */ [...] }