Re: JIT compiling with LLVM v11

Andres Freund <andres(at)anarazel(dot)de> writes:
> On 2018-03-15 17:19:23 +0100, Catalin Iacob wrote:
>> Indeed. It might be a bit awkward for packagers to depend on something
>> from Software Collections, for example because they come as separate
>> trees in /opt that are by default not in your path or dynamic loader
>> path - one needs to run everything via a scl wrapper or source the
>> /opt/rh/llvm-toolset-7/enable file to get the appropriate PATH and
>> LD_LIBRARY_PATH settings, But it seems doable.

> It'd be just for clang, and they're not *forced* to do it, it's an
> optional dependency. So I think I'm ok with that.

The "software collections" stuff was still in its infancy when I left
Red Hat, so things might've changed, but I'm pretty sure at the time
it was verboten for any mainstream package to depend on an SCL one.

But they very probably wouldn't want postgresql depending on a
compiler package even if the dependency was mainstream, so I rather
doubt that you'll ever see an --enable-jit PG build out of there,
making this most likely moot as far as the official RH package goes.
I don't know what Devrim's opinion might be about PGDG.

regards, tom lane