b-small.jpg: b.png pngtopnm b.png | pnmscale -reduce 5 | pnmtojpeg -quality=80 >b-small.jpg b.png: b.ps Makefile pstopnm -xsize 4000 -stdout b.ps | \ pnmcrop -white | pnmscale -reduce 3 | pnmtopng -compression 9 >b.png b.ps: buoyoing.42 b.tex latex b.tex dvips b buoyoing.42: buoyoing.mp TEX=latex mpost buoyoing