Re: [Bug-gnulib] copying file timestamps (was: utimes.m4)

[Paul Eggert]

Bruno Haible <address@hidden> writes:

> since utimes() can set the file's times with microsecond resolution,
> what is the portable way to _get_ a file's times with more than 1 second
> resolution?

It's supposed to be AC_STRUCT_ST_MTIM_NSEC, which is in the timespec
module.  However, this macro currently suppots only glibc with
__USE_MISC and Solaris.  (It also supports Solaris 2.6's _tv_nsec.)
The macro would need an improved interface to support glibc without
__USE_MISC, or FreeBSD.

The name of the macro is a bit misleading, as utilities also use it
retrieve the nanoseconds part of atime and ctime.