Stop using expr expressions and start using regular expressions as we need to have more expressive operators.  Disable building the Tcl extension as a test to see if this gets us past the issue of it attempting to write into a root-owned directory.
Stop using expr expressions and start using regular expressions as we
need to have more expressive operators.  Disable building the Tcl
extension as a test to see if this gets us past the issue of it
attempting to write into a root-owned directory.

bgoodr/build-locally