struct stat contains a field called st_mtime. On Linux, this field is defined as a macro expansion to an internal field:

struct timespec st_mtim;    /* Time of last modification.  */

#  define st_mtime st_mtim.tv_sec

Rust libc does not contain the st_mtim field, it only contains st_mtime. To solve this tension, I rewrite all encoutners of ::struct stat::st_mtim::tv_sec as ::libc::stat::st_mtime.

I didn't want to touch the converter for this change, but I could not find a solution that only involved rules or the compat layer in cpp2rust/compat.