ceil-ieee: Work around bug on AIX 7.1.

[gnulib.git] / doc / posix-functions / getlogin_r.texi

diff --git a/doc/posix-functions/getlogin_r.texi b/doc/posix-functions/getlogin_r.texi
index 83a506f..7c0f5bd 100644 (file)
--- a/doc/posix-functions/getlogin_r.texi
+++ b/doc/posix-functions/getlogin_r.texi
@@ -18,8 +18,19 @@ HP-UX 11.
 @item
 This function has an incompatible declaration on some platforms:
 Solaris 11 2010-11 (when @code{_POSIX_PTHREAD_SEMANTICS} is not defined).
+@item
+This function returns a truncated result, instead of failing with error code
+@code{ERANGE}, when the buffer is not large enough, on some platforms:
+OSF/1 5.1.
 @end itemize
 
 Portability problems not fixed by Gnulib:
 @itemize
+@item
+This function fails even when standard input is a tty on some platforms:
+HP-UX 11.11.
+@item
+This function fails with error code @code{EINVAL} instead of @code{ERANGE} when
+the second argument is zero on some platforms:
+HP-UX 11.31.
 @end itemize