X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=doc%2Fposix-functions%2Ffchmodat.texi;h=3808f93573f81e7719f8b65fea9bdfc5a7a6fa9c;hb=fc80165c92e8b92da6e88e4fdb9c472125124fa0;hp=ffed0b9bba6efd1fd9e127616a8f596a83ad5798;hpb=0460b26278c909bd983c2c8938e72e4cc88e4084;p=gnulib.git

diff --git a/doc/posix-functions/fchmodat.texi b/doc/posix-functions/fchmodat.texi
index ffed0b9bb..3808f9357 100644
--- a/doc/posix-functions/fchmodat.texi
+++ b/doc/posix-functions/fchmodat.texi
@@ -17,4 +17,11 @@ But the replacement function is not safe to be used in libraries and is not mult
 
 Portability problems not fixed by Gnulib:
 @itemize
+@item
+Some platforms do not allow changing the access bits on symbolic
+links.  POSIX states that @code{fchmodat(@dots{},AT_SYMLINK_NOFOLLOW)}
+may fail with @code{EOPNOTSUPP} when called on a symlink, but some
+platforms, as well as the gnulib replacement, fail for any use of
+AT_SYMLINK_NOFOLLOW even if the target was not a symlink:
+glibc, Cygwin.
 @end itemize