* lib/getgroups.c (posix_getgroups, getgroups) [__APPLE__]:

[gnulib.git] / doc / posix-headers / stddef.texi

diff --git a/doc/posix-headers/stddef.texi b/doc/posix-headers/stddef.texi
index df28e0f..6174b1f 100644 (file)
--- a/doc/posix-headers/stddef.texi
+++ b/doc/posix-headers/stddef.texi
@@ -1,14 +1,28 @@
 @node stddef.h
 @section @file{stddef.h}
 
-POSIX specification: @url{http://www.opengroup.org/susv3xbd/stddef.h.html}
+POSIX specification:@* @url{http://www.opengroup.org/onlinepubs/9699919799/basedefs/stddef.h.html}
 
-Gnulib module: ---
+Gnulib module: stddef
 
 Portability problems fixed by Gnulib:
 @itemize
+@item
+Some old platforms fail to provide @code{wchar_t}.
+
+@item
+Some platforms provide a @code{NULL} macro that cannot be used in arbitrary
+expressions:
+NetBSD 5.0
 @end itemize
 
 Portability problems not fixed by Gnulib:
 @itemize
+@item
+Some platforms provide an @code{offsetof} macro that cannot be used in
+arbitrary expressions:
+Solaris 11 2011-11
+This problem can be worked around by parenthesizing the
+@code{offsetof} expression in the unlikely case you use it with
+@code{sizeof} or @samp{[]}.
 @end itemize