ftw
===

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

Gnulib module: ---

Portability problems fixed by Gnulib:

Portability problems not fixed by Gnulib:

  * This function is missing on some platforms: MacOS X 10.3, FreeBSD 5.2.1, NetBSD 3.0, Minix 3.1.8, mingw, BeOS.

  * On platforms where off_t is a 32-bit type, this function may not correctly report the size of files or block devices larger than 2 GB. The fix is to use the AC_SYS_LARGEFILE macro.