Re: Base 7.0.10 and RHEL 6

["James P. Withrow via Tech-talk" <tech-talk at aps.anl.gov>]

Mark -

I had run into this in the past when trying to build EPICS on older hardware. I’m in a meeting at the moment but can look once I’m out and see what the solution was. 

-Jim

—-

Jim Withrow, Research Support Specialist - jwithrow at cornell.edu

NE-CAT, Cornell University - https://necat.chem.cornell.edu

Advanced Photon Source, Sector 24

9700 S. Cass Avenue, Building 436 E001

Lemont, IL 60439

On May 4, 2026, at 13:05, Mark Rivers via Tech-talk <tech-talk at aps.anl.gov> wrote:



Folks,

I have a few old RHEL 6 systems running Dectris 100K detectors.  These cannot be upgraded to more recent Linux because of the driver for the GigaStar PCI card.

I have been able to build EPICS base and areaDetector for these up to base 7.0.7.

I just tried moving to base 7.0.10, and it fails as follows:

make -C O.linux-x86_64-rhel6 -f ../Makefile TOP=../../../../.. \

            T_A=linux-x86_64-rhel6 install

make[5]: Entering directory `/corvette/usr/local/epics/base-7.0.10/modules/database/src/ioc/O.linux-x86_64-rhel6'

perl -CSD /corvette/usr/local/epics/base-7.0.10/bin/linux-x86_64-rhel6/genVersionHeader.pl   -t ../../../../.. -N EPICS_VCS_VERSION -V "" ../O.Common/epicsVCS.h

Keeping VCS header ../O.Common/epicsVCS.h

    EPICS_VCS_VERSION = ""

perl -CSD ../../../../../bin/linux-x86_64-rhel6/dbdToMD.pl   -I. -I.. -I../O.Common -I../as -I../bpt -I../db -I../dbStatic -I../dbtemplate -I../misc -I../registry -I../rsrv -I../../../../../dbd -o menuConvert.md ../bpt/menuConvert.dbd.pod

Pod::Simple version 3.27 required--this is only version 3.13 at /corvette/usr/local/epics/base-7.0.10/bin/linux-x86_64-rhel6/../../lib/perl/Pod/Markdown.pm line 21.

BEGIN failed--compilation aborted at /corvette/usr/local/epics/base-7.0.10/bin/linux-x86_64-rhel6/../../lib/perl/Pod/Markdown.pm line 21.

Compilation failed in require at (eval 6) line 3.

        ...propagated at /usr/share/perl5/base.pm line 94.

BEGIN failed--compilation aborted at /corvette/usr/local/epics/base-7.0.10/bin/linux-x86_64-rhel6/../../lib/perl/EPICS/PodMD.pm line 8.

Compilation failed in require at ../../../../../bin/linux-x86_64-rhel6/dbdToMD.pl line 21.

BEGIN failed--compilation aborted at ../../../../../bin/linux-x86_64-rhel6/dbdToMD.pl line 21.

The issue is the version of POD:Simple. RHEL 6 only provides 3.13 but it appears that base requires 3.27.

I did not see anything in the base release notes about what versions of Linux are supported in 7.0.10.

I understand if there is a need to drop support for RHEL 6, I can continue to use base 7.0.7 for that arch.  However, if this was unintentional I thought I would let folks know about the issue.

Thanks,

Mark