CMAKE_COLOR_DIAGNOSTICSΒΆ
New in version 3.24.
Enable color diagnostics throughout.
This variable uses three states: ON, OFF and not defined.
When not defined:
- Makefile Generators initialize the - CMAKE_COLOR_MAKEFILEvariable to- ON. It controls color buildsystem messages.
- GNU/Clang compilers are not invoked with any color diagnostics flag. 
When ON:
- Makefile Generators produce color buildsystem messages by default. - CMAKE_COLOR_MAKEFILEis not initialized, but may be explicitly set to- OFFto disable color buildsystem messages.
- GNU/Clang compilers are invoked with a flag enabling color diagnostics ( - -fcolor-diagnostics).
When OFF:
- Makefile Generators do not produce color buildsystem messages by default. - CMAKE_COLOR_MAKEFILEis not initialized, but may be explicitly set to- ONto enable color buildsystem messages.
- GNU/Clang compilers are invoked with a flag disabling color diagnostics ( - -fno-color-diagnostics).
If the CMAKE_COLOR_DIAGNOSTICS environment variable is set, its
value is used.  Otherwise, CMAKE_COLOR_DIAGNOSTICS is not defined by
default.
