| CMake Error at .*Modules/WriteCompilerDetectionHeader\.cmake:[0-9]+ \(message\): | |
| If OUTPUT_DIR is specified, then OUTPUT_FILES_VAR must also be specified\. | |
| Call Stack \(most recent call first\): | |
| MultiNoOutFileVar\.cmake:4 \(write_compiler_detection_header\) | |
| CMakeLists\.txt:3 \(include\) |