1. 2017-11-02 [Bug other/31233] obstack.h typo gcc-bugs egallager at gcc d 2. 2016-07-31 [Bug other/31233] obstack.h typo gcc-bugs manu at gcc dot gn 3. 2016-07-31 [Bug other/31233] obstack.h typo gcc-bugs egall at gwmail do