Z:gnu-www-ja-categories--672c99-For example, GNU Ada is develo/en

For example, GNU Ada is developed by a company. It is always distributed under the terms of the GNU GPL, and every copy is free software; but its developers sell support contracts. When their salesmen speak to prospective customers, sometimes the customers say, &ldquo;We would feel safer with a commercial compiler.&rdquo; The salesmen reply, &ldquo;GNU Ada is a commercial compiler; it happens to be free software.&rdquo;