OpenCL build log

Build log:
<program source>:57:1: warning: no previous prototype for function 'intersect'
intersect(
^
<program source>:63:37: error: no member named 'radiu' in 'struct shape::<anonymous at <program source>:31:3>'; did you mean 'radius'?
        float sphere_radius = shape.sphere.radiu;
                                    ^~~~~
                                    radius
<program source>:33:10: note: 'radius' declared here
                        float radius;   // offset 16
         ^
<program source>:74:6: warning: double precision constant requires cl_khr_fp64, casting to single precision
                                -0.5 * (b + sqrt(disc)) :
     ^
<program source>:75:6: warning: double precision constant requires cl_khr_fp64, casting to single precision
                                -0.5 * (b - sqrt(disc));
     ^
<program source>:81:11: warning: double precision constant requires cl_khr_fp64, casting to single precision
        if (t0 < EPSILON)       return 0;
          ^
<program source>:6:17: note: expanded from macro 'EPSILON'
#define EPSILON 1e-4
                ^
<program source>:100:19: warning: double precision constant requires cl_khr_fp64, casting to single precision
                float x = (xi + .5) * invwidth - 0.5;
                  ^
<program source>:100:36: warning: double precision constant requires cl_khr_fp64, casting to single precision
                float x = (xi + .5) * invwidth - 0.5;
                                   ^
<program source>:101:19: warning: double precision constant requires cl_khr_fp64, casting to single precision
                float y = (yi + .5) * invheight - 0.5;
                  ^
<program source>:101:37: warning: double precision constant requires cl_khr_fp64, casting to single precision
                float y = (yi + .5) * invheight - 0.5;
                                    ^