@itemize
@item
This function is missing on some platforms:
-HP-UX 10, mingw, BeOS.
+HP-UX 10, mingw, MSVC 9, BeOS.
@item
On platforms where @code{off_t} is a 32-bit type, this function may not
work correctly on files larger than 2 GB. (Cf. @code{AC_SYS_LARGEFILE}.)