@section @code{ftruncate}
@findex ftruncate
-POSIX specification: @url{http://www.opengroup.org/onlinepubs/9699919799/functions/ftruncate.html}
+POSIX specification:@* @url{http://www.opengroup.org/onlinepubs/9699919799/functions/ftruncate.html}
-Gnulib module: ---
+Gnulib module: ftruncate
Portability problems fixed by Gnulib:
@itemize
+@item
+This function is missing on some platforms:
+MSVC 9.
+@item
+On platforms where @code{off_t} is a 32-bit type, this function is not
+applicable to arbitrary lengths for files larger than 2 GB. The fix is to
+use the @code{AC_SYS_LARGEFILE} macro.
@end itemize
Portability problems not fixed by Gnulib: