Makefile.in (distclean-ext): removes directories for extensions correctly.
common.mk (realclean-local): removes id.h too.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_9_2@28360 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Makefile.in (distclean-ext): removes directories for extensions
correctly.
common.mk (realclean-local): removes id.h too.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_9_2@28360 b2dd03c8-39d4-4d8f-98ff-823fe69b080e