2013-07-24  Paolo Carlini  <paolo.carlini@oracle.com>

	* include/bits/random.h (random_device): Avoid using the FILE type.
	* include/std/random: Do not include <cstdio>.
	* src/c++11/random.cc: ... include it here.
	(random_device::_M_init, random_device::_M_fini,
	random_device::_M_getval): Cast back and forth void* and FILE*.

From-SVN: r201215