The default build (make -f client.mk) on Unix should build with xprint enabled. Reasoning: This seems to be the only possibility to get non iso-8850-1 printed on Unix. For a discussion on this, see also bug 24824.
Wrong group and a dup.
*** This bug has been marked as a duplicate of 49947 ***
Verified dupe of bug 49947: "Please add --with-xprint to nightly builds"