gnulib/doc/posix-functions/chmod.texi

@node chmod
@subsection @code{chmod}
@findex chmod

POSIX specification:@* @url{https://pubs.opengroup.org/onlinepubs/9799919799/functions/chmod.html}

Gnulib module: chmod
@mindex chmod

Portability problems fixed by Gnulib:
@itemize
@item
This function does not fail when the file name argument ends in a slash
and (without the slash) names a non-directory, on some platforms:
AIX 7.2.
@item
This function fails with a wrong error code (@code{EINVAL} instead of @code{ENOTDIR})
when the file name argument ends in a slash and (without the slash) names
a non-directory, on some platforms:
mingw, MSVC.
@end itemize

Portability problems not fixed by Gnulib:
@itemize
@item
This function sometimes fails with @code{EACCES} when the failure is
due to lack of appropriate privileges (@code{EPERM}), not to
search permission denied on the file name prefix (@code{EACCES}):
Linux kernel 5.15 with glibc 2.35 and a CIFS v1 file system
(see @url{https://bugs.gnu.org/65599}).
@end itemize