5 POSIX specification:@* @url{https://pubs.opengroup.org/onlinepubs/9699919799/functions/fseeko.html}
9 Portability problems fixed by Gnulib:
12 This function is missing on some platforms:
15 The declaration of @code{fseeko} in @code{<stdio.h>} is not enabled by default
19 This function fails on seekable stdin, stdout, and stderr: cygwin <= 1.5.24.
21 On platforms where @code{off_t} is a 32-bit type, @code{fseeko} does not work
22 correctly with files larger than 2 GB@. (Cf. @code{AC_SYS_LARGEFILE}.)
25 Portability problems not fixed by Gnulib: