Re: enabling OPTIMIZER_DEBUG

From: Luca Ferrari <fluca1978(at)infinito(dot)it>
To: Zhan Li <zhanli89(at)gmail(dot)com>
Cc: "pgsql-novice(at)postgresql(dot)org" <pgsql-novice(at)postgresql(dot)org>
Subject: Re: enabling OPTIMIZER_DEBUG
Date: 2013-11-18 09:52:52
Message-ID: CAKoxK+5YM2JCZ5mZkZGvvBu=7=GoPm6gCNYoVCqH_i-eee7oMw@mail.gmail.com
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On Sat, Nov 16, 2013 at 8:44 PM, Zhan Li <zhanli89(at)gmail(dot)com> wrote:
> I want to use print_path() function in allpaths.c. I used --enable-debug
> when configure. But it's telling me that print_path is an undefined
> reference when I tried to build the source code. Is there anything else
> necessary except for --enable-debug flag to use print_path function?

--enable-debug will make debugging symbols available, not the
OPTIMIZER_DEBUG preprocessor variable set, so you should use something
like

configure CFLAGS="-DOPTIMIZER_DEBUG"

to build the source tree.

Hope this helps.

Luca

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