* Makefile.in (USER_H): Add ginclude/float.h.

    * Makefile.in (USER_H): Add ginclude/float.h.
        (FLOAT_H): Remove.
        (stmp-int-hdrs, install-mkheaders): Don't handle FLOAT_H.
        (mostlyclean): Don't remove float.h intermediate files.
        (distclean): Don't remove float.h.
        * config.gcc: Remove all float_format references.
        * configure.in (float_format, float_h_file): Remove.

        * c-common.c: Include tree-inline.h.
        (builtin_define_with_int_value): New.
        (builtin_define_type_precision): Use it.
        (builtin_define_float_constants): New.
        (cb_register_builtins): Use it.  Define __FLT_RADIX__ and
        __FLT_EVAL_METHOD__.
        * defaults.h (TARGET_FLT_EVAL_METHOD): New.
        * config/i386/i386.h (TARGET_FLT_EVAL_METHOD): New.
        * config/m68k/m68k.h (TARGET_FLT_EVAL_METHOD): New.
        * doc/tm.texi (INTEL_EXTENDED_IEEE_FORMAT): Mention moto 96-bit format.
        (TARGET_FLT_EVAL_METHOD): New.

        * config/float-c4x.h, config/float-i128.h, config/float-i32.h,
        config/float-i386.h, config/float-i64.h, config/float-m68k.h,
        config/float-sh.h, config/float-sparc.h, config/float-vax.h: Remove.
        * ginclude/float.h: New.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@56769 138bc75d-0d04-0410-961f-82ee72b054a4