* bignum.c (power_cache_get_power): Use bitsize insteadof ceil_log2.
  (ones): Removed.
  (next_pow2): Removed.
  (floor_log2): Removed.
  (ceil_log2): Removed.

* configure.in (__builtin_popcountl): Don't check.



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41974 b2dd03c8-39d4-4d8f-98ff-823fe69b080e