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Message-ID: <20200822175449.GA13209@openwall.com>
Date: Sat, 22 Aug 2020 19:54:49 +0200
From: Solar Designer <solar@...nwall.com>
To: john-users@...ts.openwall.com
Subject: Re: OpenCl lib not detected
On Sat, Aug 22, 2020 at 09:28:06AM -0800, Royce Williams wrote:
> On Sat, Aug 22, 2020 at 5:06 AM Solar Designer <solar@...nwall.com> wrote:
> > On Sat, Aug 22, 2020 at 12:13:07PM +0000, freeroute wrote:
>
> > > I think the autoconf did not find the OpenCL lib.
> >
> > It looks so. Per the full configure output, it looks like the OpenCL
> > headers you have in /usr/include/CL are working OK.
> >
> > As an alternative to passing explicit LDFLAGS, you could ensure the
> > library path is specified somewhere under /etc/ld.so.conf.d, and run
> > "ldconfig" to ensure the paths specified in there are in effect.
>
> If this explains why some people have this symptom and others don't ... is
> this something that would normally be automatically triggered by the OpenCL
> install? Or is this something that everyone should be aware of, or should
> be mentioned in README-OPENCL, and/or some part of the ./configure output,
> etc.? It feels as though this should be more discoverable (using a variety
> of methods/channels).
When a libOpenCL is installed by any package or any driver's or
toolkit's installer, I'd expect its directory path (if it's not a
standard library directory for the system) to be automatically added to
/etc/ld.so.conf.d/, and (regardless of whether the directory is a
standard one or not) "ldconfig" to be invoked (like any package
installing a library normally does). I don't know why this might not
have happened in freeroute's case; or maybe it did happen, and the
problem was different.
Alexander
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