You will typically install PDNS > 2.9 via source or via a package. Earlier versions used a clumsy binary installer.
At this point some things may have gone wrong. Typical errors include:
Errors looking like this indicate a mismatch between your PDNS distribution and your Unix operating system. Download the static PDNS
distribution for your operating system and try again. Please contact <pdns@powerdns.com>
if this is impractical.