Experimental Physics and
Industrial Control System

Andrew Johnson <[email protected]> · Fri, 4 Sep 2009 11:09:30 -0500

Hi Csaba,

Welcome to the EPICS community.

On Friday 04 September 2009 02:59:55 Csaba Gajo wrote:
>
> So it all compiled fine, I've set the environment variables in .bashrc:
> export EPICS_CA_ADD_LIST=127.0.0.1

The correct name for this variable is EPICS_CA_ADDR_LIST, and you don't 
usually need to set it unless you're trying to communicate with IOCs on a 
different IP subnet.

> export EPICS_ROOT=/opt/epics
> export EPICS_HOST_ARCH=linux-x86
> export EPICS_BASE=$EPICS_ROOT/base
> export EPICS_EXTENSIONS=$EPICS_ROOT/extensions
> export PATH=$PATH:$EPICS_BASE/bin/$EPICS_HOST_ARCH
> export
> LD_LIBRARY_PATH=$LD_LIBRARY_PATH:$EPICS_BASE/lib/$EPICS_HOST_ARCH:$EPICS_EX
>TENSIONS/lib/$EPICS_HOST_ARCH:$EPICS_APPS/lib/$EPICS_HOST_ARCH

I'm interested why you think you have to set LD_LIBRARY_PATH - did you read 
that in our documentation somewhere, and if so where?  Recent versions of the 
EPICS Base build rules do not require that you set LD_LIBRARY_PATH, and we 
actually recommend *against* doing so unless it's really necessary.  If you 
need to build Base so it can be installed in a different location we provide 
a better way to do that.  The only time you should really need to set 
LD_LIBRARY_PATH is if you don't know where the final install location is 
going to be when you compile.

- Andrew
-- 
The best FOSS code is written to be read by other humans -- Harold Welte

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System