regex_internal.h: define __attribute_warn_unused_result__

[gnulib.git] / doc / posix-functions / chown.texi

diff --git a/doc/posix-functions/chown.texi b/doc/posix-functions/chown.texi
index e5a80d6..88e25cd 100644 (file)
--- a/doc/posix-functions/chown.texi
+++ b/doc/posix-functions/chown.texi
@@ -13,6 +13,10 @@ Some platforms fail to detect trailing slash on non-directories, as in
 @code{chown("link-to-file/",uid,gid)}:
 FreeBSD 7.2, Solaris 9.
 @item
+Some platforms fail to update the change time when at least one
+argument was not -1, but no ownership changes resulted:
+OpenBSD 4.0.
+@item
 When passed an argument of -1, some implementations really set the owner
 user/group id of the file to this value, rather than leaving that id of the
 file alone.