Experimental Physics and
Industrial Control System

Andrew Johnson <[email protected]> · Mon, 8 Dec 2014 14:43:08 -0600

Hi David,

On 12/08/2014 02:17 PM, Dudley, David wrote:
> Is there a defined way to add variables that get put into the generated
> envPaths file in the IOC?

The envPaths file gets generated from the contents of the configure/
RELEASE file(s) in the IOC's top area. The file(s) are read in and each
definition found (except for RULES and TEMPLATE_TOP) is expanded out.
Only variables pointing to directories that exist at build-time will be
included in the output file though. The actual values generated can be
adjusted if the IOC has a different view of the file-system by setting
IOCS_APPL_TOP in the configure/CONFIG_SITE file.

> Basically, I want to have the build system include a directive to set an
> environment variable to a value.

You can get envPaths to set one that points to an existing directory as
I described above, but for anything else you'll have to modify your
iocBoot/iocXxx/Makefile to generate another file that the st.cmd file
can read in. If this is a soft IOC you could also set the environment
variable before running the IOC's binary.

HTH,

- Andrew
-- 
People everywhere confuse what they read in newspapers with news.
-- A. J. Liebling

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System