fseeko
======

POSIX specification:
 https://pubs.opengroup.org/onlinepubs/9699919799/functions/fseeko.html

Gnulib module: fseeko

Portability problems fixed by Gnulib:

  * This function is missing on some platforms: mingw, MSVC 14.

  * The declaration of fseeko in <stdio.h> is not enabled by default on some platforms: glibc 2.3.6.

  * This function fails on seekable stdin, stdout, and stderr: cygwin <= 1.5.24.

  * On platforms where off_t is a 32-bit type, fseeko does not work correctly with files 2 GiB and larger.  See Large File Support.

Portability problems not fixed by Gnulib: