From: Brian Candler <b.candler@...>
Date: 2011-03-02T17:54:37+09:00
Subject: Re: Trying to install pg on 32bit Snow Leopard 10.6

Chris Lemcke wrote in post #984496:
> have_library: checking for PQconnectdb() in -lpq...
> -------------------- no
>
> "/usr/bin/gcc-4.2 -o conftest -I. -I/opt/local/lib/ruby/1.8/i686-
> darwin10 -I. -I/opt/local/include -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE  -
> I/opt/local/include -I/opt/local/include/postgresql84 -pipe -O2  -fno-
> common -pipe -fno-common   -arch i386 conftest.c  -L. -L/opt/local/lib
> -L/opt/local/lib -L. -L/opt/local/lib -L/opt/local/lib/postgresql84 -
> arch i386  -arch i386   -lruby-static -lpq  -lpthread -ldl -lobjc  "
> conftest.c: In function t:
> conftest.c:3: error: PQconnectdb undeclared (first use in this
> function)
> conftest.c:3: error: (Each undeclared identifier is reported only once
> conftest.c:3: error: for each function it appears in.)
> checked program was:
> /* begin */
> 1: /*top*/
> 2: int main() { return 0; }
> 3: int t() { void ((*volatile p)()); p = (void ((*)()))PQconnectdb;
> return 0; }
> /* end */

Strange, looks like this conftest forgot to #include the header or 
declare PQconnectdb.

The later tests declare
int PQconnectdb();
but they are looking for different libraries, so fail later in the 
linking stage.

Raise a ticket on macports?

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