Problem solved; no easy job. Henrik Nordstrom assumption was correct: bootstrap.sh should have been run. But my debian system did not have the correct autoconf and automake versions. After installing the correct (but old) autoconf and automake version I managed to compile a working debian package. For those who are interested: mail me for a patched squid version 2.5.STABLE10 suitable for debian sarge. Met vriendelijke groet/Regards Prompt R.J. Baart Kerkstraat 173 5261CW Vught tel: +31 73 6567041 mailto:R.J.Baart@xxxxxxxxx