Created attachment 186435 [details]
Patch to fix the issue

Since commit b2c27072b ("Deal with linux arches that don't have getdents, only getdents64"), building for musl fails due to ino64_t and off64_t being undefined.

The *64_t types are transitional APIs for applications that do not yet fully support large files on 32-bit platforms, and musl no longer provides them.  Since this is for a raw syscall anyway, it doesn't make sense to use libc-specific types here anyway, so in the attached patch I've changed this to match the definition of the struct used in the kernel (except there the kernel-specific u64 and s64 typedefs are used instead).