* common.mk: revert r48486 because it breaks mswin build.  start over.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@48487 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* gc.c (gc_record): add information for debug print.



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@48488 b2dd03c8-39d4-4d8f-98ff-823fe69b080e