> In zmsignal.h you have defined: > > #define SIGNAL_RELEASE(SIG) \ > sigsetmask(~sigmask(SIG) & sigblock(SIG_HOLD(sig))) > > This doesn't work on SunOS 4.1.3_U1, since SIG_HOLD is defined as > > #define SIG_HOLD (void (*)())3 > > Not sure what to suggest here... Oops... It should be SIGNAL_HOLD()... > sdb /Matti Aarnio