From: | Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us> |
---|---|
To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
Cc: | ash <xpi(at)aeria(dot)net>, pgsql-interfaces(at)postgresql(dot)org |
Subject: | Re: Darwin libpq link failing |
Date: | 2003-03-07 04:06:49 |
Message-ID: | 200303070406.h2746nD19275@candle.pha.pa.us |
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Lists: | pgsql-interfaces |
Tom Lane wrote:
> ash <xpi(at)aeria(dot)net> writes:
> > gcc -O -pipe -Wall -g -Dbugs -I/Users/xpi/tmpsrc/lib/mutilities -L/Users/xpi/tmpsrc/lib/mutilities -Dpthreads -Ddarwin -I/usr/local/pgsql/include -L/usr/local/pgsql/lib -lpq -lpq mutil.o maintest.c
> > ld: Undefined symbols:
> > _PQclear
> > _PQerrorMessage
> > _PQsetdbLogin
>
> Surely the library reference must come after the files that reference
> it.
Right. Some linkers seem to do reordering themselves, while others
require the ordering to be specified in the proper dependency order; I
prefer a linker that doesn't do any reordering itself --- it can lead to
surprises and doesn't handle well cases where the same symbol is defined
in multiple libraries.
--
Bruce Momjian | http://candle.pha.pa.us
pgman(at)candle(dot)pha(dot)pa(dot)us | (610) 359-1001
+ If your life is a hard drive, | 13 Roberts Road
+ Christ can be your backup. | Newtown Square, Pennsylvania 19073
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