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Date: Thu, 3 Jan 2019 10:51:56 +0100
From: Christoph Berg <myon@debian.org>
To: Devrim =?iso-8859-1?B?R/xuZPx6?= <devrim@gunduz.org>
Cc: Evan Rempel <erempel@uvic.ca>, pgsql-pkg-yum@postgresql.org
Subject: Re: Missing llvmjit packages in pgdg-11 RHEL6
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Re: Devrim Gündüz 2019-01-02 <1e2cd3c7553c26b98aa98500567e34a96b0395a0.camel@gunduz.org>
> The LLVM/CLANG versions in RHEL 6 is not sufficient to build PostgreSQL 11 with
> LLVM support. I'd suggest you to upgrade to RHEL 7, at least.

Fwiw what I did for Debian is to require llvm 6.0.1. Older releases
are supported by PG on paper, but effectively at least that version is
needed or else C++ extensions like PostGIS will explode because C++
exceptions aren't handled cleanly.

(The full story is that 5.x is needed for C++ exceptions, and 7 is
needed non-x32 architectures like ppc64(el).)

Christoph