appears to be a regression: http://www.mail-archive.com/debian-glibc@lists.debian.org/msg31543.html svn path=/nixpkgs/trunk/; revision=6885
appears to be a regression: http://www.mail-archive.com/debian-glibc@lists.debian.org/msg31543.html svn path=/nixpkgs/trunk/; revision=6885