| Left: | ||
| Right: | 
| LEFT | RIGHT | 
|---|---|
| 1 | |
| 2 option('tracing', type: 'boolean', value: false) | 1 option('tracing', type: 'boolean', value: false) | 
| 3 option('emscripten-config', type: 'string', value: '~/.emscripten') | 2 option('emscripten-config', type: 'string', value: '~/.emscripten') | 
| LEFT | RIGHT |