doc: Mention the effects of AC_SYS_LARGEFILE.

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

diff --git a/doc/posix-functions/pwrite.texi b/doc/posix-functions/pwrite.texi
index 599c7d2..713e07e 100644 (file)
--- a/doc/posix-functions/pwrite.texi
+++ b/doc/posix-functions/pwrite.texi
@@ -23,4 +23,8 @@ HP-UX 11.11.
 
 Portability problems not fixed by Gnulib:
 @itemize
+@item
+On platforms where @code{off_t} is a 32-bit type, this function may not
+work correctly on files larger than 2 GB.  The fix is to use the
+@code{AC_SYS_LARGEFILE} macro.
 @end itemize