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@node lockf
@section @code{lockf}
@findex lockf
POSIX specification:@* @url{https://pubs.opengroup.org/onlinepubs/9699919799/functions/lockf.html}
Gnulib module: ---
Portability problems fixed by Gnulib:
@itemize
@end itemize
Portability problems not fixed by Gnulib:
@itemize
@item
This function is missing on some platforms:
Minix 3.1.8, Cygwin 1.5.x, mingw, MSVC 14, Android 6.0.
@item
On platforms where @code{off_t} is a 32-bit type, this function may not
work correctly across the entire data range of files larger than 2 GB.
The fix is to use the @code{AC_SYS_LARGEFILE} macro.
@end itemize
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