Remove SF_SIZE etc. target macros.

Remove SF_SIZE etc. target macros.

gcc:
	* config/i386/cygming.h (TF_SIZE): Remove.
	* config/i386/darwin.h (TF_SIZE): Remove.
	* config/i386/dragonfly.h (TF_SIZE): Remove.
	* config/i386/freebsd.h (TF_SIZE): Remove.
	* config/i386/gnu-user-common.h (TF_SIZE): Remove.
	* config/i386/openbsdelf.h (TF_SIZE): Remove.
	* config/i386/sol2.h (TF_SIZE): Remove.
	* config/ia64/hpux.h (XF_SIZE, TF_SIZE): Remove.
	* config/ia64/linux.h (TF_SIZE): Remove.
	* doc/tm.texi.in (SF_SIZE, DF_SIZE, XF_SIZE, TF_SIZE): Remove.
	* doc/tm.texi: Regenerate.
	* system.h (SF_SIZE, DF_SIZE, XF_SIZE, TF_SIZE): Poison.

gcc/c-family:
	* c-cppbuiltin.c (c_cpp_builtins): Define macros for mantissa
	digits of floating-point modes if -fbuilding-libgcc.

libgcc:
	* libgcc2.c (SF_SIZE): Change all uses to __LIBGCC_SF_MANT_DIG__.
	(DF_SIZE): Change all uses to __LIBGCC_DF_MANT_DIG__.
	(XF_SIZE): Change all uses to __LIBGCC_XF_MANT_DIG__.
	(TF_SIZE): Change all uses to __LIBGCC_TF_MANT_DIG__.
	* libgcc2.h (SF_SIZE): Change to __LIBGCC_SF_MANT_DIG__.  Give
	error if not defined and LIBGCC2_HAS_SF_MODE is defined.
	(DF_SIZE): Change to __LIBGCC_DF_MANT_DIG__.  Give error if not
	defined and LIBGCC2_HAS_DF_MODE is defined.
	(XF_SIZE): Change to __LIBGCC_XF_MANT_DIG__.  Give error if not
	defined and LIBGCC2_HAS_XF_MODE is defined.
	(TF_SIZE): Change to __LIBGCC_TF_MANT_DIG__.  Give error if not
	defined and LIBGCC2_HAS_TF_MODE is defined.

From-SVN: r215014