[PATCH 2/2] faccessat: document AT_SYMLINK_NOFOLLOW issue

[Paul Eggert]

* doc/posix-functions/faccessat.texi: Modernize platform list.
Document AT_SYMLINK_NOFOLLOW limitation.
---
 ChangeLog                          |  4 ++++
 doc/posix-functions/faccessat.texi | 13 ++++++++++---
 2 files changed, 14 insertions(+), 3 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index ec39037..0cadec3 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,9 @@
 2017-07-27  Paul Eggert  <address@hidden>
 
+       faccessat: document AT_SYMLINK_NOFOLLOW issue
+       * doc/posix-functions/faccessat.texi: Modernize platform list.
+       Document AT_SYMLINK_NOFOLLOW limitation.
+
        renameat2: port to Solaris 10
        * lib/renameat2.c (rename_noreplace): Use lstat, not faccessat
        with AT_SYMLINK_NOFOLLOW (which is not portable).
diff --git a/doc/posix-functions/faccessat.texi 
b/doc/posix-functions/faccessat.texi
index dea811b..48ba172 100644
--- a/doc/posix-functions/faccessat.texi
+++ b/doc/posix-functions/faccessat.texi
@@ -10,15 +10,22 @@ Portability problems fixed by Gnulib:
 @itemize
 @item
 This function is missing on some platforms:
-glibc 2.3.6, Mac OS X 10.5, FreeBSD 6.0, NetBSD 5.0, OpenBSD 3.8, Minix 3.1.8,
+glibc 2.3.6, macOS 10.12, FreeBSD 7.4, NetBSD 6.1.5, OpenBSD 4.9, Minix 3.1.8,
 AIX 5.1, HP-UX 11, IRIX 6.5, OSF/1 5.1, Solaris 10, Cygwin 1.5.x, mingw, MSVC 
14,
 Interix 3.5, BeOS.
-However, the replacement does not always take into account ACLs.  Also,
-it is not safe to be used in libraries and is not multithread-safe.
 @end itemize
 
 Portability problems not fixed by Gnulib:
 @itemize
address@hidden
+The replacement does not always take ACLs into account.
address@hidden
+The replacement is not safe to be used in libraries.
address@hidden
+The replacement is not multithread-safe.
address@hidden
+The replacement does not support the @code{AT_SYMLINK_NOFOLLOW} flag,
+which is supported by GNU @code{faccessat}.
 @end itemize
 
 Other problems of this function:
-- 
2.7.4