doc: Document that fsync doesn't work on directories on AIX 7.3.

Reported by Lakshmi-Surekha <Lakshmi.Kovvuri@ibm.com> in:
<https://github.com/tukaani-project/xz/issues/188>.

* doc/posix-functions/fsync.texi: Document the behavior.

diff --git a/ChangeLog b/ChangeLog
index ac20d475da80f22dfec4491cd208d575d525c814..3cebc0d793226ccb690c331c3392efdc3778c222 100644 (file)
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,10 @@
+2025-07-22  Collin Funk  <collin.funk1@gmail.com>
+
+       doc: Document that fsync doesn't work on directories on AIX 7.3.
+       Reported by Lakshmi-Surekha <Lakshmi.Kovvuri@ibm.com> in:
+       <https://github.com/tukaani-project/xz/issues/188>.
+       * doc/posix-functions/fsync.texi: Document the behavior.
+
 2025-07-22  Paul Eggert  <eggert@cs.ucla.edu>
 
        mkdir-p: ENOENT/ENOTDIR safety and consistency

diff --git a/doc/posix-functions/fsync.texi b/doc/posix-functions/fsync.texi
index d9149b46858623f41a672362138fd99dac4958b1..924546516b401b89e5b9e13bf8448ac8995bff40 100644 (file)
--- a/doc/posix-functions/fsync.texi
+++ b/doc/posix-functions/fsync.texi
@@ -20,4 +20,9 @@ Portability problems not fixed by Gnulib:
 If the argument is a read-only file descriptor, this function fails
 with @code{EBADF} on some platforms:
 AIX 7.2, Cygwin 2.9.
+
+@item
+If the argument is a directory file descriptor, this function fails with
+@code{EBADF} on some platforms:
+AIX 7.3.
 @end itemize