strchrnul: work around cygwin bug

[pspp] / doc / posix-functions / ttyname_r.texi

diff --git a/doc/posix-functions/ttyname_r.texi b/doc/posix-functions/ttyname_r.texi
index a2f714d00931862dbf477d010c7a2064ceabef60..e190d2592dc8fd590e823faeccf57aeda8f02b4c 100644 (file)
--- a/doc/posix-functions/ttyname_r.texi
+++ b/doc/posix-functions/ttyname_r.texi
@@ -12,9 +12,17 @@ Portability problems fixed by Gnulib:
 This function is missing on some platforms:
 NetBSD 3.0, mingw, BeOS.
 @item
+This function is not declared unless @code{_REENTRANT} is defined,
+on some platforms:
+HP-UX 11.
+@item
 This function has an incompatible declaration on some platforms:
 MacOS X 10.4, Solaris 11 2010-11 (when @code{_POSIX_PTHREAD_SEMANTICS} is not defined).
 @item
+This function ignores the size argument, thus overwriting memory after the
+buffer, on some platforms:
+OSF/1 5.1.
+@item
 This function refuses to do anything when the output buffer is less than 128
 bytes large, on some platforms:
 Solaris 11 2010-11.