| unset(ENV{UNSET_THEN_EMPTY}) | |
| set(ENV{UNSET_THEN_EMPTY} "") | |
| if(DEFINED ENV{UNSET_THEN_EMPTY}) | |
| message(STATUS "ENV{UNSET_THEN_EMPTY} is defined to '$ENV{UNSET_THEN_EMPTY}'") | |
| else() | |
| message(STATUS "ENV{UNSET_THEN_EMPTY} is not defined") | |
| endif() | |
| set(ENV{SET_THEN_EMPTY} "set") | |
| set(ENV{SET_THEN_EMPTY} "") | |
| if(DEFINED ENV{SET_THEN_EMPTY}) | |
| message(STATUS "ENV{SET_THEN_EMPTY} is defined to '$ENV{SET_THEN_EMPTY}'") | |
| else() | |
| message(STATUS "ENV{SET_THEN_EMPTY} is not defined") | |
| endif() |