kmeans compile warnings

[robe]

lwkmeans.c: In function 'lwgeom_cluster_2d_kmeans':
lwkmeans.c:179:14: warning: 'min.x' may be used uninitialized in this function [-Wmaybe-uninitialized]
  dx = (max.x - min.x)/k;
              ^
lwkmeans.c:180:14: warning: 'min.y' may be used uninitialized in this function [-Wmaybe-uninitialized]
  dy = (max.y - min.y)/k;
              ^
lwkmeans.c:179:14: warning: 'max.x' may be used uninitialized in this function [-Wmaybe-uninitialized]
  dx = (max.x - min.x)/k;
              ^
lwkmeans.c:180:14: warning: 'max.y' may be used uninitialized in this function [-Wmaybe-uninitialized]
  dy = (max.y - min.y)/k;

[strk]

I'm getting these too. It's annoying as they hide more serious warnings in the noise.

[dbaston]

Resolved by the combination of r14890, r14892, r14893

[robe]

thanks Dan. Maybe it will fix my 32-bit issue that comes every so often with kmeans or at least make it easier to troubleshoot.