#!/bin/sh
if [ $# -lt 2 ]
then
	echo "Usage: transparize gifname color"
	echo "  gifname - name of GIF file"
	echo "  color   - color ID to make transparent"
	exit 1
fi
giftoppm $1 | ppmtogif -interlace -transparent $2 > /tmp/$$.gif
if [ $? -eq 0 ]
then
	mv /tmp/$$.gif $1
else
	rm /tmp/$$.gif
fi