Buildsys glitch? (perhaps primary.xml.gz problem)

[Rick Stout]

>> emacs: error while loading shared libraries: libXext.so.6: cannot open
>> shared object file: No such file or directory
>>

The problem is related to nx falsely providing libXext.so.6, which was
installed in the buildroot. This problem has been fixed and the build
has been pushed. When the mirrors update, this problem will be resolved.