PR 56981 Flush buffer at record boundary if possible.

2014-06-08  Janne Blomqvist  <jb@gcc.gnu.org>

	PR libfortran/56981
	* io/unix.h (struct stream_vtable): Add new member function,
	markeor.
	(smarkeor): New inline function.
	(flush_if_unbuffered): Remove prototype.
	* io/unix.c (raw_markeor): New function.
	(raw_vtable): Initialize markeor member.
	(buf_markeor): New function.
	(buf_vtable): Initialize markeor member.
	(mem_vtable): Likewise.
	(mem4_vtable): Likewise.
	(flush_if_unbuffered): Remove function.
	* io/transfer.c (next_record): Call smarkeor instead of
	flush_if_unbuffered.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@211353 138bc75d-0d04-0410-961f-82ee72b054a4