Two use cases:
1) Auxiliary applications installed from a deb using a
known toplevel directory defined by the substitution variable
@LINUXCNC_AUX_EXAMPLES@ and exposed by the tcl namespace
variable: linuxcnc::LINUXCNC_AUX_EXAMPLES
(typically set to: /usr/share/linuxcnc/aux_examples)
2) For testing the development of auxiliary applications,
support use of an exported environmental variable
(LINUXCNC_AUX_CONFIGS) that specifies a colon (:) separated
list of example directories.
Example:
$ export LINUXCNC_AUX_CONFIGS=~/mytests:/usr/local/testconfigs
$ linuxcnc # note the added directories in the selector
Signed-off-by: Dewey Garrett <dgarrett@panix.com>
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