I don't see where this is hardcoded in xapian-bindings - the only match for a grep for pycentral is where we call "dh_pycentral". If there is an error, please point out where it is and I will fix it in the debian packages I'll be preparing shortly.
The buildd failure is due to you trying to build xapian-bindings 1.0.4 against libxapian-dev 1.0.5 (which the build-deps don't allow), so I suspect xapian-bindings is a false positive.
I don't see where this is hardcoded in xapian-bindings - the only match for a grep for pycentral is where we call "dh_pycentral". If there is an error, please point out where it is and I will fix it in the debian packages I'll be preparing shortly.
The buildd failure is due to you trying to build xapian-bindings 1.0.4 against libxapian-dev 1.0.5 (which the build-deps don't allow), so I suspect xapian-bindings is a false positive.