#!/bin/sh

bye()
{
    rm -f $tmpfile $tmpfile2
    exit $1
}

tmpfile=$(mktemp ~/.giftopng.XXXXXX) || bye 1
tmpfile2=$(mktemp ~/.giftopng.XXXXXX) || bye 1
giftopnm --alphaout=$tmpfile2 "$1" >$tmpfile 2>/dev/null || bye 1
pnmtopng -alpha $tmpfile2 $tmpfile >"${1%.[Gg][Ii][Ff]}.png" \
	2>/dev/null || bye 1
bye 0
.