I checked the Debian glibc packaging in SVN and it doesn't build with -mno-tls-direct-seg-refs by default and does ship a /etc/ld.so.conf.d/libc6-xen.conf in libc6-xen; I didn't check whether libc6-xen takes precedence over libc6-i686 on a Debian xen doMU though.
I checked the Debian glibc packaging in SVN and it doesn't build with -mno-tls- direct- seg-refs by default and does ship a /etc/ld. so.conf. d/libc6- xen.conf in libc6-xen; I didn't check whether libc6-xen takes precedence over libc6-i686 on a Debian xen doMU though.