Hi! > +#ifndef TST_ABI32 This is the worst type of check you can do and should be used only when the test code does not compile at all. Instead you should check the return value from mseal() syscall and TCONF if you get ENOSYS on 32bit, at least the syscalls numbers seems to be allocated so you should get ENOSYS at runtime. -- Cyril Hrubis chrubis@suse.cz