* libio/libioP.h (_IO_acquire_lock_clear_flags2_fct): New function.

* libio/libioP.h (_IO_acquire_lock_clear_flags2_fct): New function.

	* debug/vfwprintf_chk.c (__vfwprintf_chk): Use
	_IO_acquire_lock_clear_flags2 instead of _IO_acquire_lock.
	* debug/vprintf_chk.c (__vprintf_chk): Likewise.
	* debug/vwprintf_chk.c (__vwprintf_chk): Likewise.
	* debug/vfprintf_chk.c (__vfprintf_chk): Likewise.
	* debug/fwprintf_chk.c (__fwprintf_chk): Likewise.
	* debug/printf_chk.c (__printf_chk): Likewise.
	* debug/fprintf_chk.c (__fprintf_chk): Likewise.
	* debug/wprintf_chk.c (__wprintf_chk): Likewise.

	* sysdeps/pthread/bits/stdio-lock.h (_IO_acquire_lock_clear_flags2):
	Define.