- int tsx, tsy, ts;
- /*
- * Each window dimension equals the tile size times one more
- * than the grid dimension (the border is half the width of the
- * tiles).
- */
- tsx = *x / (params->w + 1);
- tsy = *y / (params->h + 1);
- ts = min(tsx, tsy);
- if (expand)
- ds->tilesize = ts;
- else
- ds->tilesize = min(ts, PREFERRED_TILE_SIZE);
+ /* Ick: fake up `ds->tilesize' for macro expansion purposes */
+ struct { int tilesize; } ads, *ds = &ads;
+ ads.tilesize = tilesize;