What should the behavior be of -D=FOO? gcc 2.9.5 says "malformed option '-D =FOO' gcc 3 inserts #define FOO when you do -DFOO it inserts #define FOO 1 Reading the documentation carefully, it looks like it expects -D FOO but I've been using -DFOO for years (the behavior is equivalent). marty mleisner@xxxxxxxxxxxxxxxx Don't confuse education with schooling. Milton Friedman to Yogi Berra