[PATCH] strtoll and strtoull in libiberty (fix: libstdc++/5611)

[DJ Delorie]

* use of the "register" keyword is to be avoided.

* Do you *really* want to link libstdc++ against libiberty?  libiberty
  includes GPL and LGPL components, which may be a Bad Thing to have
  in libstdc++, since libstdc++ has the "special exception" and
  libiberty does not.

* What Alex said :-)