* configure.host: Add check for --enable-newlib-io-pos-args
and define WANT_IO_POS_ARGS flag if enabled. Define
the flag by default for x86-linux configurations.
* configure.in: Add support for --enable-newlib-io-pos-args.
* libc/configure.in: Ditto.
* configure: Regenerated.
* libc/configure: Ditto.
* libc/stdio/Makefile.am: Specify -fshort-enums for compiling
vfprintf.c and vfiprintf.c.
* libc/stdio/Makefile.in: Regenerated.
* libc/stdio/vfprintf.c: Add positional argument support that
is enabled by compiling with -DWANT_IO_POS_ARGS.
* libc/stdio/vfprintf.c (_VFPRINTF_R): Modification to fix
that suppressed . for %.0f, 0.1. Check now looks if there
are padding zeroes (expt) in addition to any digits (ndig) to
print.
* 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.
* libc/stdio/vfprintf.c (VFPRINTF): Added CHECK_INIT
call prior to calling _VFPRINTF_R so reentrant data area is set.
(_VFPRINTF_R): Removed now extraneous CHECK_INIT call.