fseek
=====

POSIX specification: http://www.opengroup.org/susv3xsh/fseek.html

Gnulib module: fseek

Portability problems fixed by Gnulib:

  * This function mistakenly succeeds on pipes on some platforms: mingw.

Portability problems not fixed by Gnulib:

  * On Windows platforms (excluding Cygwin), this function does not set errno upon failure.

  * On platforms where long is a 32-bit type, fseek does not work correctly with files larger than 2 GB.  The fix is to use fseeko instead and to invoke the AC_SYS_LARGEFILE macro.