Here st_ino is always 0, so change the definition of SAME_INODE so
that 1 means the two files are the same, 0 with st_ino != 0 means
they differ, and 0 with st_ino == 0 means we don’t know. Problem
reported by Bruno Haible (Bug#25146).
* doc/posix-headers/sys_stat.texi (sys/stat.h): Update.
* lib/same-inode.h (SAME_INODE): Return 0 on MinGW.
* lib/sys_stat.in.h (S_IFIFO): Define to _S_IFIFO if that exists.
* tests/test-sys_stat.c: Don't assume that S_IFBLK exists.
* doc/posix-headers/sys_stat.texi: Mention missing S_IFIFO, S_IFBLK on
MSVC.
* lib/sys_stat.in.h (includes): Always include <time.h>
* modules/sys_stat (Depends-on): Add time.
* tests/test-sys_stat.c: Guarantee struct timespec, as well as
mode_t permission values.
* doc/posix-headers/sys_stat.texi (sys/stat.h): Document how to
get at subsecond timestamps.
Signed-off-by: Eric Blake <ebb9@byu.net>
These flags make it possible to implement futimens and utimensat;
they also make touch(1) more efficient, by avoiding stat or
gettime if native utimensat works.
* lib/utimens.c (validate_timespec, update_timespec): New helper
functions.
(gl_futimens, lutimens): Use them.
* modules/utimens (Depends-on): Add gettime, lstat, stat-time,
stdbool, sys_stat.
(Link): Mention resulting library dependency.
* modules/utimecmp (Link): Likewise.
* modules/utimens-tests (Depends-on): Drop stat-time, stdbool.
(Makefile.am): Pick up library dependency.
* lib/sys_stat.in.h (UTIME_NOW, UTIME_OMIT): Guarantee a
definition.
* tests/test-sys_stat.c: Test the definitions.
* doc/posix-headers/sys_stat.texi (sys/stat.h): Document this.
* NEWS: Document library dependency.
Signed-off-by: Eric Blake <ebb9@byu.net>