The following bug has been logged online:

Bug reference: 1376
Logged by: Robert Sussland
Email address: robert (AT) inkwood (DOT) org
PostgreSQL version: 8.0
Operating system: Mac OS X 10.3.7
Description: configure out of date
Details:

Before installing, a user may run
../configure --help

to determine which flags are possible.

the result of running this on 8.0rc4 specifies that tcl, perl, python, etc.
are possible to build. running the configure script with the options
../configure --with-perl

results in an appparently successful configure, but make returns an error.
Later, I learned this code had been moved to other repositories.
The configure script should be updated to match the code in the tarball.

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TIP 9: the planner will ignore your desire to choose an index scan if your
joining column's datatypes do not match

Robert Sussland wrote:
Telling us which error would help a lot.

--
Peter Eisentraut
http://developer.postgresql.org/~petere/

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