From: Michael Granger <ged@...>
Date: 2010-03-05T08:07:01+09:00
Subject: Re: Installing Pg gem for PostGreSQL 8.4

On 03/04/2010 06:35 AM, Tor Erik Linnerud wrote:
>> checking for pg_config... yes
>> checking for libpq-fe.h... yes
>> checking for libpq/libpq-fs.h... yes
>> checking for PQconnectdb() in -lpq... no
>> checking for PQconnectdb() in -llibpq... no
>> checking for PQconnectdb() in -lms/libpq... no
>> Can't find the PostgreSQL client library (libpq)
> 
> I am having the exact same problem on a fresh install on Snow Leopard 
> with Ruby 1.9.1p376 and postgres installed via homebrew. This is the 
> last entry from mkmf.log

I assume you're the anonymous creator of this ticket:

  http://bitbucket.org/ged/ruby-pg/issue/24/090-gem-fails-to-build

as the description looks the same. If you are, you have the ARCHFLAGS
environment variable set to "-arch i386", which isn't correct for Snow
Leopard. Try either unsetting ARCHFLAGS, in which case the build system
should detect the correct setting, or reset it manually to "-arch x86_64".

If you aren't the creator of that ticket (and you aren't manually
setting your ARCHFLAGS to the incorrect architecture), please file a bug
with the output from 'gem install pg' here:

  http://bitbucket.org/ged/ruby-pg/issues/new/

and attach your mkmf.log in its entirety. Thanks!

-- 
Michael Granger <ged@FaerieMUD.org>
Rubymage, Architect, Believer
http://FaerieMUD.org/