checking package dependencies
compiling EClockMux3.bsv
code generation for sysEClockMux3 starts
Error: "EClockMux3.bsv", line 11, column 21: (G0067)
  The expression for a clock could not be evaluated. Clocks must be determined
  at compile time and cannot be computed dynamically.
  During elaboration of the interface output clock `clk' at "EClockMux3.bsv",
  line 8, column 8.
  During elaboration of `sysEClockMux3' at "EClockMux3.bsv", line 8, column 8.