citext is not a new contrib module, I have been using it since 7.4
I believe it is being built into core in 8.4.
I have it compiled on 32 bit 8.2, and 64 bit 8.1 and 8.3
My 8.3 compilation says it is incompatible and the 8.1 compilation says
that it is missing the magic block. It is compiled with the
PG_MODULE_MAGIC, so I assume the problem is actually with version
incompatibilities.
Sim
> citext is a new *8.4* contrib module.
>
>
> Osvaldo