regex.m4: correct the reversed range endpoint ([b-a]) test

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

diff --git a/doc/posix-headers/wchar.texi b/doc/posix-headers/wchar.texi
index b797b6b..3a34a2f 100644 (file)
--- a/doc/posix-headers/wchar.texi
+++ b/doc/posix-headers/wchar.texi
@@ -25,4 +25,9 @@ NetBSD 5.0
 
 Portability problems not fixed by Gnulib:
 @itemize
+@item
+This header file leads to link errors and endless recursions or endless loops
+on some platforms:
+glibc version 2.5 or older, together with gcc version 4.3 or newer and the
+option @samp{-std=c99} or @samp{-std=gnu99}.
 @end itemize