ftell
=====

POSIX specification: http://www.opengroup.org/onlinepubs/9699919799/functions/ftell.html

Gnulib module: ftell

Portability problems fixed by Gnulib:

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

  * This function produces incorrect results immediately after fseek on some platforms: HP-UX 11.

Portability problems not fixed by Gnulib:

  * fflush, ftell, ftello, fgetpos behave incorrectly on input streams that are opened in O_TEXT mode and whose contents contains Unix line terminators (LF), on some platforms: mingw.

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