Hi Camm! Today I have tried gcl 2.6.8pre from CVS with Maxima 5.9.3 and Maxima 5.9.3.99rc2 - build and run_testsuite() are perfectly OK. And the most important problem with gcl-xmaxima interaction is gone. With best regards, Vadim -- Vadim V. Zhytnikov <vvzhy at mail.ru> <vvzhy at netorn.ru>