CMake Error at RANDOM-WrongArguments\.cmake:[0-9]+ \(add_custom_target\):
  Error evaluating generator expression:

    \$<STRING:RANDOM,LENGTH:foo>

  LENGTH:foo: invalid numeric value for 'LENGTH:' option.
Call Stack \(most recent call first\):
  CMakeLists\.txt:[0-9]+ \(include\)


CMake Error at RANDOM-WrongArguments\.cmake:[0-9]+ \(add_custom_target\):
  Error evaluating generator expression:

    \$<STRING:RANDOM,RANDOM_SEED:foo>

  RANDOM_SEED:foo: invalid numeric value for 'RANDOM_SEED:' option.
Call Stack \(most recent call first\):
  CMakeLists\.txt:[0-9]+ \(include\)
