#!/bin/sh

# Set GM2 to wherever you have a GNU Modula-2 compiler.
GM2="/usr/x86_64-pc-linux-gnu/gcc-bin/13/gm2"

${GM2} -g -fbounds-check -fiso xiaolin_wu_line_algorithm_Modula2.mod
./a.out > alpha.pgm
ppmmake rgb:5C/06/8C 600 400 > bg.ppm
ppmmake rgb:E2/E8/68 600 400 > fg.ppm
pamcomp -alpha=alpha.pgm fg.ppm bg.ppm | pamtopng > image.png