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From: Tom Lane <tgl@sss.pgh.pa.us>
To: Justin Pryzby <pryzby@telsasoft.com>
Cc: Robert Haas <robertmhaas@gmail.com>
Cc: Dilip Kumar <dilipbalaut@gmail.com>
Cc: Andres Freund <andres@anarazel.de>
Cc: Tomas Vondra <tomas.vondra@2ndquadrant.com>
Cc: Alexander Korotkov <a.korotkov@postgrespro.ru>
Cc: David Steele <david@pgmasters.net>
Cc: Ildus Kurbangaliev <i.kurbangaliev@gmail.com>
Cc: Dmitry Dolgov <9erthalion6@gmail.com>
Cc: Andrey Borodin <x4mmm@yandex-team.ru>
Cc: pgsql-hackers@lists.postgresql.org
Subject: Re: [HACKERS] Custom compression methods (mac+lz4.h)
Date: Sat, 20 Mar 2021 20:44:53 -0400
Message-ID: <309337.1616287493@sss.pgh.pa.us> (raw)
In-Reply-To: <20210320231957.GX11765@telsasoft.com>
References: <CAFiTN-sBH65e4B5kQB5MT8BQOPajkrKvSdKA-07+ra3f2x4vCA@mail.gmail.com>
	<CAFiTN-tErP5x54pvkZP7yLVJhpNBOZcd5TN_k1BDhjYCA9D0VQ@mail.gmail.com>
	<CA+TgmoYRsapWz2vDSQXFAEL_BAMq1aY37avcq9GAB=SUUvFhaw@mail.gmail.com>
	<CAFiTN-t03PqWCaRW1GoWQa0i2NwYw_p=FDj+Kxu_-rY_viALqw@mail.gmail.com>
	<20210319163511.GL11765@telsasoft.com>
	<CA+TgmobuFsxf=nrweN7NYW9VMUV7dX4GYmN966kjeEgXxdxtrg@mail.gmail.com>
	<20210319174425.GM11765@telsasoft.com>
	<CA+TgmobXnzCRf-UOWnjk+OoCT-mzFR867HvoxM2N9uA7+_V-+g@mail.gmail.com>
	<20210320212302.GW11765@telsasoft.com>
	<301730.1616276227@sss.pgh.pa.us>
	<20210320231957.GX11765@telsasoft.com>

Justin Pryzby <pryzby@telsasoft.com> writes:
> On Sat, Mar 20, 2021 at 05:37:07PM -0400, Tom Lane wrote:
>> Digging around, it looks like the "-I/opt/local/include" bit came
>> from LZ4_CFLAGS, which we then stuck into CFLAGS, but it needed
>> to be put in CPPFLAGS in order to make this test work.

> If it's the same as the issue Andrey reported, then it causes a ./configure
> WARNING, which is resolved by the ac_save hack, which I copied from ICU.

I think probably what we need to do, rather than shove the pkg-config
results willy-nilly into our flags, is to disassemble them like we do
with the same results for xml2.  If you ask me, the way we are handling
ICU flags is a poor precedent that is going to blow up at some point;
the only reason it hasn't is that people aren't building --with-icu that
much yet.

			regards, tom lane





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  To: pgsql-hackers@postgresql.org
  Cc: tgl@sss.pgh.pa.us, pryzby@telsasoft.com, robertmhaas@gmail.com, dilipbalaut@gmail.com, andres@anarazel.de, tomas.vondra@2ndquadrant.com, a.korotkov@postgrespro.ru, david@pgmasters.net, i.kurbangaliev@gmail.com, 9erthalion6@gmail.com, x4mmm@yandex-team.ru, pgsql-hackers@lists.postgresql.org
  Subject: Re: [HACKERS] Custom compression methods (mac+lz4.h)
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