Xprint is dead for the last 9 years, and libXp will be going away. I see in configure.ac: AC_CHECK_LIB(Xp, XpSetImageResolution) it defines HAVE_LIBXP if Xp is found, but then that is used nowhere. Seems like a dead dependency. I could test a patch myself, but the package doesn't compile: bug 638610
Oops. Double submitted.
*** This bug has been marked as a duplicate of bug 649084 ***