I have encountered problems with testing my build of CLN using mingw tools under Windows XP and cygwin-bash. In particular, the test "test_I_io" fails with a message "Illegal number syntax" evidently from function read_number_bad_syntax() in "cl_read_err_bad.cc", but when I comment out the "test_I_io" test in "test_I.cc", the rest of the tests are fine. I describe the considerable machinations and efforts I went through to see if I could determine specifically what the error was, but CLN proved horrendously complicated for the purposes of even preliminary debugging efforts. Those efforts and problems are discussed in more detail near the beginning of my post "Results of GiNaC (& CLN) builds" to the ginac-list at http://www.cebix.net/pipermail/ginac-list/2006-July/000857.html . Richard Haney __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com