Experimental Physics and
Industrial Control System

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<== Date ==>		<== Thread ==>

Subject:	Multiple pointers to /usr/lib/epics
From:	"Daykin, Evan via Tech-talk" <tech-talk at aps.anl.gov>
To:	"tech-talk at aps.anl.gov" <tech-talk at aps.anl.gov>
Date:	Tue, 22 Nov 2022 21:32:37 +0000

Hi Tech Talk,

After upgrading to EPICS 7, we now get the following warning(s) when building packages with multiple dependencies:

>/usr/lib/epics/configure/RULES_BUILD:601: Warning: Base configure/RULES_BUILD file included more than once. Does configure/RELEASE have multiple pointers to /usr/lib/epics?

Our convention is as Mark describes here: https://epics.anl.gov/tech-talk/2021/msg00813.php . Our add-ons are essentially all installed into a flat /usr/lib/epics directory, and our experience is the same as Mark described – as long as any miscellaneous package that is _not_ in /usr/lib/epics is defined before anything that _is_ in /usr/lib/epics, everything works fine. Now that we are getting these warnings, can they be ignored, or is this convention broken/otherwise disfavored in EPICS 7?

Cheers,

Evan

Evan Daykin

Controls Engineer

Facility for Rare Isotope Beams

Michigan State University

640 South Shaw Lane

East Lansing, MI 48824, USA

Tel. 517-908-7678

Email: daykin at frib.msu.edu