Copy stable/9 to releng/9.3 as part of the 9.3-RELEASE cycle.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

Copy head to stable/9 as part of 9.0-RELEASE release cycle.

Approved by: re (implicit)

Merge gdtoa-20110304.

Vendor import of gdtoa 20081205.

Merge gdtoa 20080831. This fixes several bugs, including an infinite
loop pointed out by cognet@ that occurs when calling strtod() with a
string representing a number between DBL_MAX and 2*DBL_MAX, when the
rounding mode is anything other than the default.

Bring in the vendor's fix for a bug in strtod() whereby
strtod("0xyz", &endp) resulted in endp pointing to "0xyz"
instead of "xyz".

Reported by: Tony Finch <dot@dotat.at>
MFC after: 1 week

This commit was generated by cvs2svn to compensate for changes in r165743,
which included commits to RCS files with non-trunk default branches.

Import of the latest gdtoa sources, which include fixes for minor
problems relating to NaNs and rounding.

Import gdtoa 20040118. This revision addresses some corner cases in
denormal and locale handling in strtod().

Import new sources. The only material change in this update is to
add locale support for hexadecimal floating point conversions.

Noticed by: ache
Reviewed by: mike (mentor)

Initial import of David Gay's gdtoa library for conversion between
strings and floating point.