| enable_language (C) | |
| include(CheckCSourceCompiles) | |
| set(C 1) # test that this is tolerated | |
| check_c_source_compiles("I don't build" SHOULD_FAIL) | |
| if(SHOULD_FAIL) | |
| message(SEND_ERROR "invalid C source didn't fail.") | |
| endif() | |
| check_c_source_compiles("int main() {return 0;}" SHOULD_BUILD) | |
| if(NOT SHOULD_BUILD) | |
| message(SEND_ERROR "Test fail for valid C source.") | |
| endif() |