1### Compilation failed:
2
3error: 2: 'main' must return: 'vec4', 'float4', or 'half4'
4void main() { m(); sk_FragColor = half4(0); }
5^^^^^^^^^^^
6error: 2: unknown identifier 'sk_FragColor'
7void main() { m(); sk_FragColor = half4(0); }
8 ^^^^^^^^^^^^
92 errors
10