* newlib.hin: (_WANT_IO_POS_ARGS): New define.
(_WANT_IO_LONG_LONG): Ditto.
(_WANT_IO_LONG_DOUBLE): Ditto.
* configure.in: Add new configuration options
--enable-newlib-io-long-long and --enable-newlib-io-long-double
which tie to new defines in newlib.hin.
* configure: Regenerated.
* configure.host: Add checks for new configuration options. Also
fix up check for --enable-newlib-io-pos-args so configuration
option will override any default for a given platform.
Remove defining compiler flags for the _WANT_IO* options.
* libc/stdio/vfprintf.c: Change to use new newlib.hin defines
instead of looking for old compiler flags.
* libc/stdio/vfscanf.c: Ditto.
* libc/stdio/vfieeefp.h: Ditto.
* libc/machine/powerpc/vfprintf.c: Ditto.
* libc/machine/powerpc/vfscanf.c: Ditto.
* libc/stdlib/ldtoa.c (_ldcheck): New routine
that categorizes a long double as NaN, Infinity, or other.
* libc/stdio/vfprintf.c [WANT_IO_LONG_DBL](_VFPRINTF_R): Removed
isinfl and isnanl static routines which were i386-specific. Changed
calls to the two removed routines to a single _ldcheck call.
* libc/stdio/vfieeefp.h (ldieee): Fixed missing semi-colons.
* libc/stdlib/Makefile.am: Added ldtoa.c to list of sources.
* libc/stdlib/Makefile.in: Regenerated.
* libc/stdio/floatio.h: Added suitable MAXEXP for long double.
* libc/stdio/vfieeefp.h: Added long double bit structures.
* libc/stdio/vfprintf.c[WANT_IO_LONG_DBL]: Added long double support.
[WANT_IO_LONG_DBL](isinfl, isnanl): New static long double routines.
(exponent): Changed expbuf to reasonable maximum instead of MAXEXP.
* libc/stdio/vfscanf.c[WANT_IO_LONG_DBL]: Added long double support.
* libc/stdlib/ldtoa.c: New file containing _ldtoa_r and
_strtold routines used for conversions between character
and long double.
Matthew Gretton-Dann
Jeff Johnston
Christopher Faylor