Toon: There are a large number of test failures and untested test cases in the current CVS f77 when compiled with -m64 -mcpu=ultrasparc on an Ultra 10 running Solaris 2.8, see http://gcc.gnu.org/ml/gcc-testresults/2000-09/msg00114.html Is this a general 64bit problem, or are there specific problems with the sparc port? Brad Lucier