* gc.c (rb_newobj): prohibit call of rb_newobj() during gc.
	  Submitted by Sylvain Joyeux [ruby-core:12099].
	* ext/dl/ptr.c: do not use LONG2NUM() inside dlptr_free().
	  Slightly modified fix bassed on a patch by Sylvain Joyeux
	  [ruby-core:12099] [ ruby-bugs-11859 ] [ ruby-bugs-11882 ]
	  [ ruby-patches-13151 ].
	* ext/dl/ptr.c (dlmem_each_i): typo fixed.  a patch from IKOMA
	  Yoshiki <ikoma@mb.i-chubu.ne.jp> in [ruby-dev:33776].


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_8_6@17140 b2dd03c8-39d4-4d8f-98ff-823fe69b080e