5 POSIX specification:@* @url{http://www.opengroup.org/onlinepubs/9699919799/functions/lockf.html}
9 Portability problems fixed by Gnulib:
13 Portability problems not fixed by Gnulib:
16 This function is missing on some platforms:
17 Cygwin 1.5.x, mingw, BeOS.
19 On platforms where @code{off_t} is a 32-bit type, this function may not
20 work correctly across the entire data range of files larger than 2 GB.
21 The fix is to use the @code{AC_SYS_LARGEFILE} macro.