Fix problems found by build-many-glibcs.zack/libio-minimization

Most of these have something to do with either old stdio or ldbl-opt.
The changes surrounding PLT bypass for ldbl-affected symbols are a bit
of a bodge but at least they seem to preserve the ABI expectations.

	* include/libc-symbols.h (hidden_weak_ver, libc_hidden_weak_ver):
	New macros.
	* sysdeps/generic/math_ldbl_opt.h (ldbl_hidden_weak): New macro.
	* sysdeps/ieee754/ldbl-opt/math_ldbl_opt.h: Also add it.
	* libio/iovsprintf.c: Use ldbl_hidden_weak to define vsprintf.
	* libio/iovsscanf.c: Use ldbl_hidden_weak to define __vsscanf.
	* libio/vasprintf.c: Use strong_alias + ldbl_hidden_def to define
	__vasprintf.
	* libio/vsnprintf.c: Use ldbl_hidden_weak to define __vsnprintf.

	* libio/iolibio.h: Add a multiple inclusion guard.  Use FILE
	instead of _IO_FILE, __fpos_t instead of _IO_fpos_t, __fpos64_t
	instead of _IO_fpos64_t, size_t instead of _IO_size_t, BUFSIZ
	instead of _IO_BUFSIZ, and __gnuc_va_list instead of _IO_va_list.
	Move the definitions of _IO_pos_BAD, _IO_fileno, _IO_clearerr,
	_IO_fseek, and _IO_rewind...
	* libio/libioP.h: ...here.

	* conform/data/stdio.h-data: Use __gnuc_va_list instead of _G_va_list.
	* sysdeps/ieee754/ldbl-opt/nldbl-compat.c: Include libioP.h.
	* sysdeps/ieee754/ldbl-opt/nldbl-compat.h: Use va_list instead
	of _G_va_list.  Declare __nldbl__IO_vfscanf by hand.
	* sysdeps/ieee754/ldbl-opt/nldbl-iovfscanf.c: Use __gnuc_va_list
	instead of _IO_va_list.

0 files changed, 0 insertions, 0 deletions