From: Tom Lane <tgl@sss.pgh.pa.us>
To: Stefan Kaltenbrunner <stefan@kaltenbrunner.cc>
cc: Christian Convey <christian.convey@gmail.com>,
        Yury Zhuravlev <u.zhuravlev@postgrespro.ru>,
        "pgsql-hackers@postgresql.org" <pgsql-hackers@postgresql.org>
Subject: Re: WIP: About CMake v2
In-reply-to: <57B60792.3000307@kaltenbrunner.cc>
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 <57B60792.3000307@kaltenbrunner.cc>
Comments: In-reply-to Stefan Kaltenbrunner <stefan@kaltenbrunner.cc>
	message dated "Thu, 18 Aug 2016 21:08:02 +0200"
Date: Thu, 18 Aug 2016 15:25:57 -0400
Message-ID: <20965.1471548357@sss.pgh.pa.us>
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Sender: pgsql-hackers-owner@postgresql.org

Stefan Kaltenbrunner <stefan@kaltenbrunner.cc> writes:
> On 08/18/2016 08:57 PM, Christian Convey wrote:
>> Which version of CMake gave you those errors?  (Sorry if you provided
>> that detail and I'm just missing it.)

> % cmake --version
> cmake version 2.8.10.2

> a quick look in the docs does not seem to reveal any kind of "minimum"
> cmake version required - and the above is what is packaged as part of
> openbsd 5.3 (which is outdated and unsupported upstream but it is
> currently perfectly fine building all postgresql versions including
> -HEAD and serving as a buildfarm member for years)

As an additional comment, I don't see us accepting a build system
that doesn't run on pretty old cmakes.  We have never had a policy
of "latest and greatest is required" for *any* build support tool,
and cmake isn't likely to be given an exception.

BTW, I just noticed that cmake doesn't seem to be supplied as part of
Apple's dev tools, at least not up to current (El Capitan) releases.
That's going to be a rather large minus to be taken into account
whenever we make the go/no-go decision on this.

			regards, tom lane


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