Fix valgrind errors

git-svn-id: http://svn.boost.org/svn/boost/trunk@83886 b8fc166d-592f-0410-95f2-cb63ce0dd405
Fix .obj extension on msvc.

git-svn-id: http://svn.boost.org/svn/boost/trunk@83887 b8fc166d-592f-0410-95f2-cb63ce0dd405
Don't create a separate timestamp table.  The file table already contains everything we need.

git-svn-id: http://svn.boost.org/svn/boost/trunk@83888 b8fc166d-592f-0410-95f2-cb63ce0dd405