User guide

A-4
VCS Environment Variables
VCS_LIC_EXPIRE_WARNING
By default VCS displays a warning 30 days before a license
expires. You can specify that this warning begin fewer days before
the license expires with this environment variable, for example:
VCS_LIC_EXPIRE_WARNING 5
To diable the warning, enter the 0 value:
VCS_LIC_EXPIRE_WARNING 0
VCS_LOG
Specifies the runtime log file name and location.
VCS_NO_RT_STACK_TRACE
Tells VCS not to return a stack trace when there is a fatal error
and instead dump a core file for debugging purposes.
VCS_RUNTIME
Specifies which runtime library named libvcs.a VCS uses.
This variable is for solving problems that require patches from
VCS and should not be set by default.
VCS_SWIFT_NOTES
Enables the printf PCL command. PCL is the Processor Control
Language that works with SWIFT microprocessor models.
To enable it, set this environment variable’s value to 1.