15#if !defined(__CYGWIN__) && defined(__GNUC__) && !defined(__MINGW32__)
16#define INTERNAL __attribute__((visibility("hidden")))
INTERNAL int * get_triangles(double *x, int n, int *ntris)
INTERNAL surface_t * mkSurface(double *x, double *y, int n, int *segs, int nsegs)
INTERNAL int * delaunay_tri(double *x, double *y, int n, int *nedges)
INTERNAL void freeSurface(surface_t *s)
INTERNAL v_data * UG_graph(double *x, double *y, int n)
static int nedges
total no. of edges used in routing