utime() call does not bump a file's "change" time

[bhaible]

According to POSIX ​https://pubs.opengroup.org/onlinepubs/9699919799/functions/utime.html , "Upon successful completion, the utime() function shall mark the last file status change timestamp for update"; that is, its 'ctime' shall be bumped.

This does not work in Haiku hrev57823 (from 2024-07-15).

How to reproduce:

Compile and run the attached program foo.c.

gcc -Wall foo.c
./a.out

Expected result: st1.st_ctime and st2.st_ctime values where the second one is approximately 1 second higher than the first one. For example:

st1.st_ctime = 1725309340.347705688, st2.st_ctime = 1725309341.347708528
OK

Actual result: st1.st_ctime and st2.st_ctime values where the second one is smaller than the first one, and an assertion failure.

st1.st_ctime = 1725309344.058982400, st2.st_ctime = 1725308540.949485568
a.out: foo.c:63:main: ctime_compare (&st1, &st2) < 0
Kill Thread

[bhaible]

test case foo.c