doc: Mention the effects of AC_SYS_LARGEFILE.

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

diff --git a/doc/posix-functions/telldir.texi b/doc/posix-functions/telldir.texi
index 60942183cfcb12e70b8b976247e8564dd929f6b7..88b19080ba0e8c686a9722a55898e0345c4b8625 100644 (file)
--- a/doc/posix-functions/telldir.texi
+++ b/doc/posix-functions/telldir.texi
@@ -15,4 +15,8 @@ Portability problems not fixed by Gnulib:
 @item
 This function is missing on some platforms:
 BeOS.
+@item
+On platforms where @code{long int} is a 32-bit type, this function may not
+work correctly on huge directories larger than 2 GB.  The fix is to use
+the @code{AC_SYS_LARGEFILE} macro (only on MacOS X systems).
 @end itemize