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

Subject: another problem with multiple SNL
From: Dariush Hampai via Tech-talk <tech-talk at aps.anl.gov>
To: "tech-talk at aps.anl.gov" <tech-talk at aps.anl.gov>
Date: Tue, 3 Feb 2026 17:36:35 +0100
Dear Community;
I'm trying to make three different state machine (SNL) in the same IOC.
The st.cmd is
< envPaths

cd "${TOP}"

## Register all support components
dbLoadDatabase "dbd/scan.dbd"
scan_registerRecordDeviceDriver pdbbase

## Load record instances
dbLoadRecords("db/scan.db","user=xena,server=xlabsrv2")
dbLoadRecords("db/scan.db","user=rxr,server=xlabsrv2")
dbLoadRecords("db/scan.db","user=cts,server=xlabsrv2")
#dbLoadTemplate("db/scan.val","user=xlabsrv2")

cd "${TOP}/iocBoot/${IOC}"
iocInit

## Start any sequence programs
seq xena_sncscan,"user=xena,server=xlabsrv2"
seq rxr_sncscan,"user=rxr,server=xlabsrv2"
seq cts_sncscan,"user=cts,server=xlabsrv2"

so it should be run three different SNLs. In one server it works properly, however in a different server during the make I receive this error message:

/usr/bin/ld: rxr_sncscan.o:/home/xlabsrv2/epics/IOCs/scan/scanApp/src/O.linux-x86_64/../rxr_sncscan.stt:25: multiple definition of `detector_files'; xena_sncscan.o:/home/xlabsrv2/epics/IOCs/scan/scanApp/src/O.linux-x./xena_sncscan.stt:25: first defined here /usr/bin/ld: rxr_sncscan.o:/home/xlabsrv2/epics/IOCs/scan/scanApp/src/O.linux-x86_64/../rxr_sncscan.stt:26: multiple definition of `detector_paths'; xena_sncscan.o:/home/xlabsrv2/epics/IOCs/scan/scanApp/src/O.linux-x./xena_sncscan.stt:26: first defined here /usr/bin/ld: cts_sncscan.o:/home/xlabsrv2/epics/IOCs/scan/scanApp/src/O.linux-x86_64/../cts_sncscan.stt:25: multiple definition of `detector_files'; xena_sncscan.o:/home/xlabsrv2/epics/IOCs/scan/scanApp/src/O.linux-x./xena_sncscan.stt:25: first defined here /usr/bin/ld: cts_sncscan.o:/home/xlabsrv2/epics/IOCs/scan/scanApp/src/O.linux-x86_64/../cts_sncscan.stt:26: multiple definition of `detector_paths'; xena_sncscan.o:/home/xlabsrv2/epics/IOCs/scan/scanApp/src/O.linux-x./xena_sncscan.stt:26: first defined here

the versions of the two servers are absolutely equal (I copied the version from one to another), however in one server I have this error...
What am i wrong?
Thank you in advance

Dariush

--
************************************

Dr. Dariush Hampai, PhD

INFN - LNF
X-Lab Frascati
Via E. Fermi, 54 (ex 40)
I-00044 Frascati (RM)
Italy

Mail Address:
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LNF-INFN
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Frascati (RM)
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Room:	+39.06.9403.5248
Lab.:	+39.06.9403.2286
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************************************



Replies:
Re: another problem with multiple SNL Mark Rivers via Tech-talk

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