dtoa.c fails to compile for sh-elf -m2e (Was: Re: strtod (and atof) on hex numbers)

[amylaar@spamcop.net]

Quoting Jeff Johnston <jjohnstn@redhat.com>:

> Joern Rennecke wrote:
> > You change to mprec.h broke dtoa.c compilation for sh2e:
> >
>
> Please try the attached patch and let me know if it sovles the problem.

Yes, it allows dtoa.c to compile.  However, the build now fails a bit
later on strtod:

/swbuild/nightly/2006-06-24/sh-elf-mprec/./gcc/xgcc
-B/swbuild/nightly/2006-06-24/sh-elf-mprec/./gcc/ -nostdinc
-B/swbuild/nightly/2006-06-24/sh-elf-mprec/sh-elf/newlib/ -isystem
/swbuild/nightly/2006-06-24/sh-elf-mprec/sh-elf/newlib/targ-include -isystem
/swbuild/nightly/2006-06-24/srcw/newlib/libc/include -B/usr/local/sh-elf/bin/
-B/usr/local/sh-elf/lib/ -isystem /usr/local/sh-elf/include -isystem
/usr/local/sh-elf/sys-include -L/swbuild/nightly/2006-06-24/sh-elf-mprec/./ld
-DPACKAGE_NAME=\"newlib\" -DPACKAGE_TARNAME=\"newlib\"
-DPACKAGE_VERSION=\"1.14.0\" -DPACKAGE_STRING=\"newlib\ 1.14.0\"
-DPACKAGE_BUGREPORT=\"\"  -I. -I../../../../../../srcw/newlib/libc/stdlib -O2
-fno-builtin      -O2 -g -O2   -m2e -c -o lib_a-strtod.o `test -f 'strtod.c' ||
echo '../../../../../../srcw/newlib/libc/stdlib/'`strtod.c
../../../../../../srcw/newlib/libc/stdlib/strtod.c: In function ‘ULtod’:
../../../../../../srcw/newlib/libc/stdlib/strtod.c:154: error: ‘_1’ undeclared
(first use in this function)
../../../../../../srcw/newlib/libc/stdlib/strtod.c:154: error: (Each undeclared
identifier is reported only once
../../../../../../srcw/newlib/libc/stdlib/strtod.c:154: error: for each function
it appears in.)
../../../../../../srcw/newlib/libc/stdlib/strtod.c:155: error: ‘_0’ undeclared
(first use in this function)
../../../../../../srcw/newlib/libc/stdlib/strtod.c: In function ‘_strtod_r’:
../../../../../../srcw/newlib/libc/stdlib/strtod.c:439: error: ‘Flt_Rounds’
undeclared (first use in this function)

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