Etat début 2014 :
https://blog.mozilla.org/webdev/2014/01/16/dxr-gets-more-correct-less-case-sensitive/

Voir le dernier état (2013) qui parait au point :
Eric Rose : DXR Digests the Firefox Codebase

– the exact version of DXR currently used
master, f46e320199cec388d28bf8fadc47834238a70a0c
– version of Clang is currently used.
clang version 3.0 (trunk 132484) Target: x86_64-unknown-linux-gnu
– python version
2.4.3.
– configure flags dans le cas mozilla-central
# cat .mozconfig
mk_add_options MOZ_OBJDIR=/var/www/html/dxr/mozilla-trees/objdir-mc-opt
mk_add_options MOZ_MAKE_FLAGS=-j9
ac_add_options --disable-optimize --disable-debug
ac_add_options --disable-tests
ac_add_options --enable-application=browser

mozilla-central looks to be broken with the latest llvm and clang

Les liens à jour à suivre :
http://dxr.mozilla.org/
https://wiki.mozilla.org/DXR
https://etherpad.mozilla.org/DXRplan
https://wiki.mozilla.org/DXR_Future_Work_Plan

Etat courant : https://github.com/jonasfj/dxr/commits/master