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

    \$<STRING:ASCII,foo>

  Character with code foo does not exist.
Call Stack \(most recent call first\):
  CMakeLists\.txt:[0-9]+ \(include\)


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

    \$<STRING:ASCII,256>

  Character with code 256 does not exist.
Call Stack \(most recent call first\):
  CMakeLists\.txt:[0-9]+ \(include\)


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

    \$<STRING:ASCII,32,256>

  Character with code 256 does not exist.
Call Stack \(most recent call first\):
  CMakeLists\.txt:[0-9]+ \(include\)


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

    \$<STRING:ASCII,32,-1>

  Character with code -1 does not exist.
Call Stack \(most recent call first\):
  CMakeLists\.txt:[0-9]+ \(include\)
