* gc.c: Improve accuracy of objspace_live_num() and
  allocated/freed counters. patched by tmm1(Aman Gupta).
  [Bug #8092] [ruby-core:53392]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@39812 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* 2013-03-19

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@39813 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* configure.in: Fix c++ compiler auto-selection not only for
  Darwin 11.x, but also the other versions of Darwin.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@39814 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* configure.in: set ac_cv_prog_cxx if CXX is supplied.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@39815 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Add comments to r39808

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@39816 b2dd03c8-39d4-4d8f-98ff-823fe69b080e